service reference guide HP Compaq dx7300 Business PC 1st Edition This document provides information on the removal and replacement of all parts as well as information on troubleshooting, Desktop Management, setup utilities, PATA and SATA drives, safety, routine care, connector pin assignments, POST error messages, and diagnostic indicator lights.
Service Reference Guide HP Compaq dx7300 Business PC 1st Edition Document Part Number: 433611-001 September 2006
© Copyright 2006 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft, MS-DOS, Windows, Windows NT, and Windows XP are trademarks of Microsoft Corporation in the U.S. and other countries. Intel is a trademark of Intel Corporation in the U.S. and other countries. UNIX is a registered trademark of The Open Group.
Contents 1 Installing the Operating System 1.1 Installing or Upgrading Device Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 1.2 Transferring Files and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 1.3 Creating a Disc Recovery Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 2 Setup Utilities and Diagnostics Features 2.
Contents 3.4 ROM Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–9 3.4.1 Remote ROM Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–9 3.4.2 HPQFlash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–10 3.4.3 Boot Block Emergency Recovery Mode . . . . . . . . . . . . . . . . . .
Contents 5.5.1 Power Supply Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5.2 Tools and Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5.3 Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5.4 Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents 7.5 Computer Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–8 7.6 Front Drive Bezels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–9 7.7 Cable Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–11 7.7.1 Cable Connections . . . . . . . . . . . . . . . . . . . . . . .
1 Installing the Operating System Ä CAUTION: Do not add optional hardware or third-party devices to your computer until the operating system is successfully installed. Doing so may cause errors and may prevent the operating system from installing properly. Once the automatic installation has begun, DO NOT TURN OFF THE COMPUTER UNTIL THE PROCESS IS COMPLETE. Turning off the computer during the installation process might damage the software that runs the computer or prevent its proper installation.
Installing the Operating System 1.2 Transferring Files and Settings Use the Microsoft Windows XP Files and Settings Transfer Wizard to move files and settings from an old computer to a new one. Click Start > All Programs > Accessories > System Tools > Files and Settings Transfer Wizard. Follow the wizard to transfer the files and settings to the new computer. 1.3 Ä Creating a Disc Recovery Set CAUTION: HP no longer ships the Restore Plus! CD with PCs.
2 Setup Utilities and Diagnostics Features Setup Utilities (F10) and diagnostic features provide information needed about the computer system when contacting Customer Support. These tools can also be used to: ■ Change factory default settings and to set or change the system configuration, which may be necessary when you add or remove hardware. ■ Determine if all of the devices installed on the computer are recognized by the system and functioning properly.
Setup Utilities and Diagnostics Features 2.2 Computer Setup Utilities Use Computer Setup Utilities (F10) to: 2–2 ■ Change factory default settings. ■ Set the system date and time. ■ Set, view, change, or verify the system configuration, including settings for processor, graphics, memory, audio, storage, communications, and input devices. ■ Modify the boot order of bootable devices such as hard drives, diskette drives, optical drives, or USB flash media devices.
Setup Utilities and Diagnostics Features 2.2.1 Using Computer Setup (F10) Utilities Computer Setup can be accessed only by turning on the computer or restarting the system. To access the Computer Setup Utilities menu, complete the following steps: 1. Turn on or restart the computer. If you are in Windows, click Start >Shut Down >Restart. 2. As soon as the computer is turned on, press F10 when the monitor light turns green to enter Computer Setup. Press Enter to bypass the title screen, if necessary.
Setup Utilities and Diagnostics Features 2.2.
Setup Utilities and Diagnostics Features Heading Storage Option Device Configuration Description Lists all installed BIOS-controlled storage devices. When a device is selected, detailed information and options are displayed. The following options may be presented. Diskette Type (Legacy Diskettes only) Identifies the highest capacity media type accepted by the diskette drive. Options are 3.5" 1.44 MB, and 5.25" 1.2 MB.
Setup Utilities and Diagnostics Features Heading Storage (continued) Option Device Configuration (continued) Description Multisector Transfers (ATA disks only) Specifies how many sectors are transferred per multi-sector PIO operation. Options (subject to device capabilities) are Disabled, 8, and 16. Transfer Mode (IDE devices only) Specifies the active data transfer mode. Options (subject to device capabilities) are PIO 0, Max PIO, Enhanced DMA, Ultra DMA 0, and Max UDMA.
Setup Utilities and Diagnostics Features Heading Storage (continued) Option Storage Options (continued) Description SATA Emulation Allows you to choose how the SATA controller and devices are accessed by the operating system. There are up to three supported options: IDE, RAID, and AHCI. IDE is the default option. Use this option for “normal” (non-RAID, non-AHCI) configurations. Select the RAID option to enable DOS and boot accesses to RAID volumes.
Setup Utilities and Diagnostics Features Heading Storage (continued) Option Boot Order Description Allows you to: • Specify the order in which attached devices (such as a USB flash media device, diskette drive, hard drive, optical drive, or network interface card) are checked for a bootable operating system image. Each device on the list may be individually excluded from or included for consideration as a bootable operating system source. • Specify the order of attached hard drives.
Setup Utilities and Diagnostics Features Heading Security (continued) Option Smart Cover (some models) Description Allows you to: • Lock/unlock the Cover Lock. • Set the Cover Removal Sensor to Disable/Notify User/Setup Password. ✎ Notify User alerts the user that the sensor has detected that the cover has been removed. Setup Password requires that the setup password be entered to boot the computer if the sensor detects that the cover has been removed.
Setup Utilities and Diagnostics Features Heading Security Option OS Security (continued) Description ✎ This selection is in effect only if the processor and operating system being used comprehend and utilize this feature. • Data Execution Prevention (some models) (enable/disable). Helps prevent OS security breaches. • Intel Virtualization Technology (some models) (enable/disable). Changing this setting requires turning the computer off and then back on.
Setup Utilities and Diagnostics Features Heading Advanced* Option Power-On Options *For advanced users only Description Allows you to set: • POST mode (QuickBoot, FullBoot, or FullBoot every 1-30 days). • POST messages (enable/disable). • MEBx Setup Prompt (enable/disable or hidden/displayed). Enabling this feature displays the text CTRL+P=MEBx during POST. Disabling this feature prevents the text from being displayed.
Setup Utilities and Diagnostics Features Heading Advanced* (continued) Option Power-On Options (continued) *For advanced users only Description Allows you to set: (continued) • I/O APIC Mode (enable/disable). Enabling this feature will allow Microsoft Windows Operating Systems to run optimally. This feature must be disabled for certain non-Microsoft Operating Systems to work properly.
Setup Utilities and Diagnostics Features Heading Option Advanced* (continued) Bus Options* Description On some models, allows you to enable or disable: • PCI SERR# Generation. *For advanced users only • PCI VGA palette snooping, which sets the VGA palette snooping bit in PCI configuration space; only needed when more than one graphics controller is installed. Device Options Allows you to set: • Printer mode (Bi-Directional, EPP & ECP, Output Only). • Num Lock state at power-on (off/on).
Setup Utilities and Diagnostics Features Heading Option Advanced* (continued) Device option (continued) *For advanced users only ✎ Description • NIC PXE Option ROM Download (enable/disable). The BIOS contains an embedded NIC option ROM to allow the unit to boot through the network to a PXE server. This is typically used to download a corporate image to a hard drive. The NIC option ROM takes up memory space below 1MB commonly referred to as DOS Compatibility Hole (DCH) space. This space is limited.
Setup Utilities and Diagnostics Features 2.3.1 Accessing HP Insight Diagnostics You must boot to the Documentation and Diagnostics CD, as described in the steps below, to access HP Insight Diagnostics. 1. While the computer is on, insert the Documentation and Diagnostics CD into an optical drive on the computer. 2. Shut down the operating system and turn off the computer. 3. Turn on the computer. The system will boot to the CD.
Setup Utilities and Diagnostics Features Miscellaneous—Shows information obtained from the computer configuration memory (CMOS), system management BIOS data, system board data, and diagnostics component information. Storage—Shows information about storage media connected to the computer. This list includes all fixed disks, diskette drives, and optical drives. System—Shows information about the system board, processor, chassis, and BIOS, plus internal speaker and PCI bus information. 2.3.
Setup Utilities and Diagnostics Features 2.3.4 Status Tab The Status tab displays the status of the selected tests. The type of test executed (Quick, Complete, or Custom) is also displayed. The main progress bar displays the percent complete of the current set of tests. While testing is in progress, a Cancel Testing button is displayed for use if you want to cancel the test. After testing has completed, the Cancel Testing button is replaced with a Retest button.
Setup Utilities and Diagnostics Features 2.3.7 Saving and Printing Information in HP Insight Diagnostics You can save the information displayed in the HP Insight Diagnostics Status and Log tabs to a diskette or a USB 2.0 HP Drive Key (64MB or higher). You can not save to the hard drive. The system will automatically create an html file that has the same appearance as the information displayed on the screen. 1. Insert a diskette or USB 2.0 HP Drive Key (capacity must be 64MB or higher). USB 1.
3 Desktop Management HP Client Management Solutions provides standards-based solutions for managing and controlling desktops, workstations, and notebook PCs in a networked environment.
Desktop Management 3.1.1 HP OpenView Agent The Radia Management Agent (RMA) used by both HP OpenView Client Configuration Manager and HP OpenView PC Configuration Management Solutions (Radia) is pre-loaded on the computer. When installed, it enables communication with the HP OpenView management console. To install the Radia Management Agent: 1. Click Start. 2. Click All Programs. 3. Click HP Manageability. 4. Click Radia Management Agent Readme. 5.
Desktop Management You can order a Recovery Disc Set from HP by calling the HP suport center. Go to the following Web site, select your region, and click the Technical support after you buy link under the Call HP heading to obtain the support center telephone number for your region. http://welcome.hp.com/country/us/en/wwcontact_us.html 3.
Desktop Management When HP Client Management Interface is used in conjunction with system management software, it can: ■ Request in-depth client inventory information - Capture detailed information about the processors, hard drives, memory, BIOS, drivers, and sensor information (such as fan speed, voltage, and temperature) ■ Receive health status information - Subscribe for a wide range of client hardware alerts (such as over-temperature, fan stall, and hardware configuration changes) to be sent to the
Desktop Management ■ HP Knowledgebase—link to expert information ■ Automated SoftPaq collection and delivery process for fast resolution of hardware problems ■ Identify, inventory, and initialize systems with HP ProtectTools embedded security chip ■ Option for health alerts to display locally on the client system ■ Report basic inventory information for non-HP clients For more information on HP Client Manager, visit www.hp.com/go/clientmanager. 3.3.
Desktop Management ■ Altiris Migration Suite ■ Altiris Local Recovery Pro For more information about the HP Client Foundation Suite, visit http://www.hp.com/go/easydeploy. 3.3.7 HP OpenView Client Configuration Manager HP OpenView Client Configuration Manager is a simplified, out-of-the-box, and easy-to-use solution that solves immediate PC software configuration management needs.
Desktop Management 3.3.9 Intel vPro-branded PCs with Active Management Technology Intel Active Management Technology (AMT) allows better discovery, healing, and protection of networked computing assets. With AMT, PCs can be managed whether the system is on, off, or the operating system is hung.
Desktop Management This hot-key enters the Intel Management Engine BIOS Execution (ME Bx) setup utility. This utility allows the user to configure various aspects of the management technology.
Desktop Management 3.3.11 Subscriber’s Choice Subscriber’s Choice is a client-based service from HP. Based on your profile, HP will supply you with personalized product tips, feature articles, and/or driver and support alerts/notifications. Subscriber’s Choice Driver and Support Alerts/Notifications will deliver e-mails notifying you that the information you subscribed to in your profile is available for review and retrieval.
Desktop Management 3.4.2 HPQFlash The HPQFlash utility is used to locally update or restore the system BIOS on individual PCs through a Windows operating system. For more information on HPQFlash, visit http://www.hp.com/support/files and enter the product name/number of the computer when prompted. 3.4.3 Boot Block Emergency Recovery Mode Boot Block Emergency Recovery Mode permits system recovery in the unlikely event of a ROM flash failure.
Desktop Management 3.4.4 Replicating the Setup The following procedures give an administrator the ability to easily copy one setup configuration to other computers of the same model. This allows for faster, more consistent configuration of multiple computers. procedures require a diskette drive or a supported USB flash media device, such as an HP ✎ Both Drive Key. Copying to Single Computer Ä CAUTION: A setup configuration is model-specific.
Desktop Management Copying to Multiple Computers Ä CAUTION: A setup configuration is model-specific. File system corruption may result if source and target computers are not the same model. For example, do not copy the setup configuration from a dc7nnn PC to a dx7nnn PC. This method takes a little longer to prepare the configuration diskette or USB flash media device, but copying the configuration to target computers is significantly faster.
Desktop Management Creating a Bootable Device Supported USB Flash Media Device Supported devices have a preinstalled image to simplify the process of making them bootable. All HP or Compaq and most other USB flash media devices have this preinstalled image. If the USB flash media device being used does not have this image, use the procedure later in this section (see “Unsupported USB Flash Media Device”). To create a bootable USB flash media device, you must have: Ä ■ A supported USB flash media device.
Desktop Management 10. At the A:\ prompt, enter FORMAT /S X: where X represents the drive letter noted before. Ä CAUTION: Be sure that you have entered the correct drive letter for the USB flash media device. FORMAT will display one or more warnings and ask you each time whether you want to proceed. Enter Y each time. FORMAT will format the USB flash media device, add the system files, and ask for a Volume Label. 11. Press Enter for no label or enter one if desired. 12.
Desktop Management 6. Go to Advanced > PCI Devices to disable both the PATA and SATA controllers. When disabling the SATA controller, note the IRQ to which the controller is assigned. You will need to reassign the IRQ later. Exit setup, confirming the changes. SATA IRQ: __________ 7. Insert a bootable DOS diskette with FDISK.COM and either SYS.COM or FORMAT.COM into a diskette drive and turn on the computer to boot to the DOS diskette. 8.
Desktop Management After configuring the power button to function as a standby button, press the power button to put the system in a very low power state (standby). Press the button again to quickly bring the system out of standby to full power status. To completely turn off all power to the system, press and hold the power button for four seconds.
Desktop Management removable media boot capability, you can protect valuable data assets. Memory Change and Smart Cover Sensor alerts can be automatically forwarded to system management applications to deliver proactive notification of tampering with a computer’s internal components. Embedded Security for ProtectTools, the Smart Cover Sensor, and the Smart Cover Lock are ✎ HP available as options on some systems.
Desktop Management Security Features Overview (Continued) Option Description Device Security Enables/disables serial ports, parallel port, front USB ports, system audio, network controllers (some models), and SCSI controllers (some models). Network Service Boot Enables/disables the computer’s ability to boot from an operating system installed on a network server. (Feature available on NIC models only; the network controller must reside on the PCI bus or be embedded on the system board.
Desktop Management Mechanical Security Features Feature Purpose How It Is Established Memory Change Alerts Detects when memory modules have been added, moved, or removed; notifies user and system administrator. This feature is automatic. Cable Lock Provision Inhibits access to the interior of the computer to prevent unwanted configuration changes or component removal. Can also be used to secure the computer to a fixed object to prevent theft.
Desktop Management 3.5.3 Establishing a Power-On Password Using Computer Setup Establishing a power-on password through Computer Setup prevents access to the computer when power is turned on, unless the password is entered. When a power-on password is set, Computer Setup presents Password Options under the Security menu. Password options include Password Prompt on Warm Boot. When Password Prompt on Warm Boot is enabled, the password must also be entered each time the computer is rebooted. 1.
Desktop Management Changing a Power-On or Setup Password If the system is equipped with an embedded security device, refer to the HP ProtectTools Security Manager Guide at www.hp.com. 1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart. 2. To change the Power-On password, go to step 3. To change the Setup password, as soon as the computer is turned on, press F10 when the monitor light turns green to enter Computer Setup.
Desktop Management National Keyboard Delimiter Characters Each keyboard is designed to meet country-specific requirements. The syntax and keys that you use for changing or deleting your password depend on the keyboard that came with your computer. National Keyboard Delimiter Characters Arabic / Greek - Russian / Belgian = Hebrew .
Desktop Management Using DriveLock When one or more hard drives that support the ATA Security command set are detected, the DriveLock option appears under the Security menu in Computer Setup. The user is presented with options to set the master password or to enable DriveLock. A user password must be provided in order to enable DriveLock. Since the initial configuration of DriveLock is typically performed by a system administrator, a master password should be set first.
Desktop Management 3.5.5 Smart Cover Sensor Cover Removal Sensor, available on some models, is a combination of hardware and software technology that can alert you when the computer cover or side panel has been removed. There are three levels of protection, as described in the following table. Smart Cover Sensor Protection Levels Level Setting Description Level 0 Disabled Smart Cover Sensor is disabled (default).
Desktop Management Locking the Smart Cover Lock To activate and lock the Smart Cover Lock, complete the following steps: 1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart. 2. As soon as the computer is turned on, press F10 when the monitor light turns green to enter Computer Setup. Press Enter to bypass the title screen, if necessary.
Desktop Management 3.5.7 Fingerprint Identification Technology Eliminating the need to enter user passwords, HP Fingerprint Identification Technology tightens network security, simplifies the login process, and reduces the costs associated with managing corporate networks. Affordably priced, it is not just for high-tech, high-security organizations anymore. ✎ Support for Fingerprint Identification Technology varies by model. For more information, visit http://h18004.www1.hp.com/products/security/. 3.
4 Serial and Parallel ATA Drive Guidelines and Features ATA = SATA ✎ Serial Parallel ATA = PATA HP only supports the use of SATA hard drives on these models of computer. The USDT model is the only product that supports a PATA optical drive. No PATA drives are supported on any other model. 4.1 SATA Hard Drives Serial ATA Hard Drive Characteristics Number of pins/conductors in data cable 7/7 Number of pins in power cable 15 Maximum data cable length 39.
Serial and Parallel ATA Drive Guidelines and Features 4.2 SATA Hard Drive Cables 4.2.1 SATA Data Cable Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s drives. Current HP desktop products ship with SATA 3.0 Gb/s hard drives. SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and never bend it tighter than a 30 mm (1.18 in) radius.
Serial and Parallel ATA Drive Guidelines and Features 4.3 PATA Device Information The USDT model is the only product that supports a PATA optical drive. No PATA drives are supported on any other model. 4.4 ATA SMART Drives The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers have built-in drive failure prediction that warns the user or network administrator of an impending failure or crash of the hard drive.
Serial and Parallel ATA Drive Guidelines and Features 4–4 433611-001 Service Reference Guide, dx7300
5 Identifying the Chassis, Routine Care, and Disassembly Preparation This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service. Ä 5.1 CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.1.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.2 Electrostatic Discharge Information A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work perfectly throughout a normal cycle.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.2.3 Personal Grounding Methods and Equipment Use the following equipment to prevent static electricity damage to equipment: ■ Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and fit snugly into the banana plug connector on the grounding mat or workstation.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.3 ■ Static awareness labels ■ Wrist straps and footwear straps providing one-megohm +/- 10% resistance ■ Material handling packages ■ Conductive plastic bags ■ Conductive plastic tubes ■ Conductive tote boxes ■ Opaque shielding bags ■ Transparent metallized shielding bags ■ Transparent shielding tubes Operating Guidelines To prevent overheating and to help prolong the life of the computer: 5.
Identifying the Chassis, Routine Care, and Disassembly Preparation 4. Always unplug the computer before cleaning the keyboard, mouse, or air vents. 5. Disconnect the keyboard before cleaning it. 6. Wear safety glasses equipped with side shields when cleaning the keyboard. 5.4.2 Cleaning the Computer Case Follow all safety precautions in Section 5.4.1 before cleaning the computer.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.4.4 Cleaning the Monitor ■ Wipe the monitor screen with a clean cloth moistened with water or with a towelette designed for cleaning monitors. Do not use sprays or aerosols directly on the screen; the liquid may seep into the housing and damage a component. Never use solvents or flammable liquids on the monitor. ■ To clean the monitor body follow the procedures in Section 5.4.2. 5.4.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.5.3 Screws The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations. screws have a black finish. ✎ Metric U.S.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.5.6 Lithium Coin Cell Battery The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime of about three years. See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures. Å WARNING: This computer contains a lithium battery. There is a risk of fire and chemical burn if the battery is handled improperly.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5–10 433611-001 Service Reference Guide, dx7300
6 Removal and Replacement Procedures— Microtower (MT) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. ✎ Not all features listed in this guide are available on all computers. 6.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.2 External Security Devices 6.2.1 Installing a Cable Lock The cable lock may be used to secure the computer access panel to the chassis and, at the same time, secure the computer to a fixed object. Insert the cable lock in the location shown below.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.2.2 Installing a Padlock A padlock may be used by itself to secure the access panel to the computer chassis. A padlock may also be used with a security cable to secure the computer to a fixed object.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.3 Access Panel 1. Prepare the computer for disassembly (Section 6.1). Ä CAUTION: Before removing the computer access panel, ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet. 2. Loosen the captive thumbscrew 1 that secures the access panel to the computer chassis. 3. Slide the access panel 2 back about 1 inch (2.5 cm), then lift it off the unit.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.4 Front Bezel 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel (Section 6.3). 3. To remove the front bezel, press in on the two bottom tabs on the left side of the bezel 1 so that they release from the chassis. Then press in on the upper tab on the left side of the bezel so that it releases from the chassis. The bezel will rotate out slightly from left to right.
Removal and Replacement Procedures— Microtower (MT) Chassis To reinstall the front bezel: 1. Position the chassis in the upright position. 2. Insert the hooks on the right side of the bezel into the rectangular holes on the chassis 1 then rotate the bezel into place 2 so that the three tabs on the left side of the bezel and the single tab on the upper right corner of the bezel snap into the slots on the chassis.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.5 Front Drive Bezels Follow these steps before removing or installing a front drive bezel. 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel (Section 6.3). 3. Remove the front bezel (Section 6.4). 6.5.1 5.25" Drive Bezel Blank Press the two retaining tabs on the inside of the large bezel towards the outside of the bezel to release the bezel blank 1.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.5.2 Diskette Drive Bezel Press the two upper 1 or the two lower 2 tabs for the diskette drive bezel towards the center of the drive bezel and push the bezel out to remove it from the front bezel. To install a bezel or a bezel blank, reverse the removal procedure. 6.5.3 3.5" Drive Bezel Blank Press the two upper 1 or the two lower 2 tabs for the 3.5" drive bezel towards the center of the 3.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.6 Cable Management Always follow good cable management practices when working inside the computer. ■ Keep cables away from major heat sources like the heatsink. ■ Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not designed to take excessive pressure on them. ■ Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when the parts are moved.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.6.1 Cable Connections System board connectors are color-coded to make it easier to find the proper connection.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.7 Memory Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other. Ä CAUTION: Static electricity can damage the electronic components of the computer or optional cards.
Removal and Replacement Procedures— Microtower (MT) Chassis ✎ The computer automatically recognizes the additional memory when the computer is turned on. To reassemble the computer, reverse the removal procedure.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.8 Expansion Cards 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3). 3. On the rear of the computer, a sliding slot cover lock secures the expansion card brackets and expansion slot covers in place.
Removal and Replacement Procedures— Microtower (MT) Chassis 4. Before installing an expansion card, remove the expansion slot cover or the existing expansion card. removing an installed expansion card, disconnect any cables that may be attached to the ✎ Before expansion card. a. If you are installing an expansion card in a vacant socket, remove the appropriate expansion slot cover on the back of the chassis. Pull the slot cover straight up from the socket then away from the inside of the chassis. b.
Removal and Replacement Procedures— Microtower (MT) Chassis c. If removing a PCI Express x16 card, pull the retention arm on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket. Pull the expansion card straight up from the socket then away from the inside of the chassis to release it from the chassis frame. Be sure not to scrape the card against the other components. 5.
Removal and Replacement Procedures— Microtower (MT) Chassis 6. If replacing or adding a new expansion card, hold the card just above the expansion slot on the system board then move the card toward the rear of the chassis 1 so that the bracket on the card is aligned with the open slot on the rear of the chassis. Press the card straight down into the expansion slot on the system board 2.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.9 Drives The computer supports up to six drives that may be installed in various configurations. This Section describes the procedure for replacing or upgrading the storage drives. A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. Ä CAUTION: Make sure personal files on the hard drive are backed up to an external storage device before removing the hard drive. Failure to do so will result in data loss.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.9.2 Removing a Drive 1. Remove any removable media, such as a compact disc or diskette, from the drive. 2. Prepare the computer for disassembly (Section 6.1). 3. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3). 4. Remove the front bezel (Section 6.4). 5. Disconnect the power and data cables from the back of the drive, as shown in the following illustrations.
Removal and Replacement Procedures— Microtower (MT) Chassis Disconnecting Diskette Drive Cables Releasing the Drives 6. A latch drive bracket with release tabs secures the drives in the drive bay. Lift the release tab on the latch drive bracket 1 for the drive you want to remove, then slide the drive from its drive bay 2. 7. Remove the four guide screws (two on each side) from the old drive. You will need these screws to install a new drive.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.9.3 Installing a Drive CAUTION: To prevent loss of work and damage to the computer or drive: Ä■ If you are inserting or removing a hard drive, shut down the operating system properly, then turn off the computer. Do not remove a hard drive while the computer is on or in standby mode. ■ Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid touching the connector. Refer to Section 5.
Removal and Replacement Procedures— Microtower (MT) Chassis 3. Reconnect the power and data cables to the drive as shown in the following illustrations. to Chapter 4, “Serial and Parallel ATA Drive Guidelines and Features” for information on ✎ Refer attaching the cabling to get optimum performance. Connecting Optical or Hard Drive Cables ✎ Some products use straight cable connectors while others use right angle connectors.
Removal and Replacement Procedures— Microtower (MT) Chassis 4. Install the front bezel (Section 6.4). 5. Install the access panel (Section 6.3). 6. Turn on the computer. you replaced the primary hard drive, the Restore Plus! CD may be used to restore the operating ✎ Ifsystem, software drivers, and/or any software applications that were preinstalled on the computer. Follow the instructions in the guide included with the Restore Plus! CD.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.10 Chassis Fan 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3). 3. Disconnect the power cable that connects the chassis fan to the system board 1. 4. Remove the four screws from the exterior rear of the chassis that secure the fan 2. 5. Remove the fan from the chassis 3.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.11 Front I/O Panel Housing Assembly 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3). 3. Disconnect three attaching cables from the system board: the power switch/LED cable, the front USB cable, and the front audio cable. 4.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.12 Front I/O Devices 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3). 3. Remove the front I/O panel assembly (Section 6.11). 4. Remove the two screws that hold the USB and audio port assembly in place 1. 5. Remove the I/O device assembly from the I/O panel by pushing it out of the housing 2.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.13 Power Switch Assembly 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3). 3. Remove the front I/O panel assembly (Section 6.11). 4. Squeeze the switch holder retaining clips together 1 and push the switch assembly out of the front I/O panel housing 2. 5.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.14 Heatsink 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3). 3. Disconnect the heatsink fan cable from the system board. 4. Disconnect the four-pin power cable from the system board to make it easier to access the heatsink. 5.
Removal and Replacement Procedures— Microtower (MT) Chassis When reinstalling the heatsink, make sure that its bottom has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor. Ä 6–28 CAUTION: Heatsink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heatsink on the processor.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.15 Processor 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the computer cover (Section 6.3). 3. Disconnect the heatsink control cable from the system board and remove the heatsink (Section 6.14). 4. Rotate the locking lever to its full open position 1. 5. Raise and rotate the microprocessor retainer to its fully open position 2. 6. Carefully lift the processor from the socket 3.
Removal and Replacement Procedures— Microtower (MT) Chassis 4. Apply the thermal grease provided in the spares kit to the top of the processor and install the heatsink atop the processor. 5. Go to step 7. 6. If using a new heatsink, remove the protective covering from the bottom of the heatsink and place it in position atop the processor. 7. Secure the heatsink to the system board and system board tray with the four captive screws and attach the heatsink control cable to the system board.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.16 Speaker 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3). 3. Move/remove any components necessary to gain access to the speaker. 4. Disconnect the speaker wire from the system board connector. 5. Remove the two plastic push pins that secure the speaker to the chassis. 6.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.17 Power Supply Å WARNING: Voltage is always present on the system board when the computer is plugged into an active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and/or the AC outlet before opening the computer. 1. Prepare the computer for disassembly (Section 6.1). 2.
Removal and Replacement Procedures— Microtower (MT) Chassis 5. Pull the power supply towards the front of the chassis while depressing the two sets of retaining clips 1 to allow the power supply to move far enough to lift it from the chassis 2. To install the power supply, reverse the removal procedure.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.18 System Board 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3). 3. Remove all PCI and PCI Express expansion boards (Section 6.8). 4. Disconnect all cables connected to the system board, noting their location for reinstallation. 5.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.19 Battery The battery that comes with your computer provides power to the real-time clock and has a lifetime of about three years. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer comes with a 3-volt lithium coin cell battery. lifetime of the lithium battery can be extended by plugging the computer into a live AC wall ✎ The socket.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.19.1 Type 1 Battery Holder 1. Lift the battery out of its holder. 2. Slide the replacement battery into position, positive side up. 3. The battery holder automatically secures the battery in the proper position. 4. Replace the computer access panel (Section 6.3). 5. Plug in the computer and turn on power to the computer. 6. Reset the date and time, your passwords, and any special system setups, using Computer Setup.
Removal and Replacement Procedures— Microtower (MT) Chassis 6.19.2 Type 2 Battery Holder 1. To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery. When the battery pops up, lift it out 1. 2. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the positive side up 2. Push the other edge down until the clamp snaps over the other edge of the battery. 3. Replace the computer cover or access panel (Section 6.3).
Removal and Replacement Procedures— Microtower (MT) Chassis 6.19.3 Type 3 Battery Holder 1. Pull back on the clip 1 that holds the battery in place, then remove the battery 2. 2. Insert the new battery and position the clip back in place. 3. Replace the computer access panel (Section 6.3). 4. Plug in the computer and turn on power. 5. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide.
7 Removal and Replacement Procedures— Slim Tower (ST) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. ✎ Not all features listed in this guide are available on all computers. 7.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 8. Lift the computer of the stand.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.2 Unlocking the Smart Cover Lock If you have locked the Smart Cover Lock use Computer Setup to unlock the lock. Refer to the Desktop Management Guide on the Documentation and Diagnostics CD for more information about the Smart Cover Lock. If you cannot access Computer Setup to unlock the cover you will need to remove the locking solenoid by using the Smart Cover FailSafe Key (Spare part number 166527-001 or 166527-002).
Removal and Replacement Procedures— Slim Tower (ST) Chassis To reattach the Smart Cover Lock: 1. Install the Smart Cover Lock assembly on the inside of the rear panel with the metal arm 1 wrapped around the air vent grid on the back of the chassis. 2. Use the supplied tamper-resistant screw 2 to secure the Smart Cover Lock to the chassis.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.3 Hood Sensor 1. Prepare the computer for disassembly. 2. Remove the computer cover. 3. Remove the special security clip (Section 7.4.1) from the top corner of the power supply cage. 4. Raise the power supply to its full upright position. 5. Disconnect the hood sensor cable from the system board. 6. Slide the hood sensor switch mounted on the power supply towards the outside of the computer 1 and lower it through the slot 2.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.4 External Security Devices 7.4.1 Security Clip A special clip is required to secure the computer from intrusion. This clip must be installed before installing the computer cover. 7.4.2 Cable Lock The cable lock may be used to secure the computer cover to the chassis and, at the same time, secure the computer to a fixed object. Insert the cable lock in the location shown below.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.4.3 Padlock A padlock may be used by itself to secure the computer cover to the computer chassis. A padlock may also be used with a security cable to secure the computer to a fixed object.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.5 Computer Cover 1. Prepare the computer for disassembly (Section 7.1). Ä CAUTION: Before removing the computer cover, ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet. 1. Press the buttons on the left and right sides of the computer 1. 2. Slide the computer cover towards the front of the computer until it stops 2, then lift it up and off the chassis.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.6 Front Drive Bezels 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove the drive bezel by pushing the top tab on the right side of the larger front bezel as shown 1 and rotating the drive bezel away from the larger front bezel 2. ✎ The drive bezel will vary depending on the computer configuration. 4. Install a bezel or a bezel blank by pushing the bezel into place.
Removal and Replacement Procedures— Slim Tower (ST) Chassis There are three drive bezel inserts that are available. Item 7–10 Description 1 Diskette drive bezel 2 Hard drive bezel 3 3.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.7 Cable Management The Small Form Factor chassis is a very compact computer and proper routing of the internal cables is critical to the operation of the computer. Follow good cable management practices when working inside the computer. ■ Keep cables away from major heat sources like the heatsink. ■ Do not jam cables on top of expansion cards or memory modules.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.7.1 Cable Connections System board connectors are color-coded to make it easier to find the proper connection.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.8 Memory Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other. Ä CAUTION: Static electricity can damage the electronic components of the computer or optional cards.
Removal and Replacement Procedures— Slim Tower (ST) Chassis ✎ The computer automatically recognizes the additional memory when the computer is turned on. To reassemble the computer, reverse the removal procedure. normally lock the Smart Cover Lock, use Computer Setup to relock the lock and enable ✎ IftheyouSmart Cover Sensor. 7.9 Vertically Oriented Expansion Card 7.9.1 Expansion Card Retainer 1. If you have locked the Smart Cover Lock, restart the computer and enter Computer Setup to unlock the lock.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.9.2 PCI Expansion Card 1. If you have locked the Smart Cover Lock, restart the computer and enter Computer Setup to unlock the lock. 2. Turn off the computer properly through the operating system, then turn off any external devices. 3. Disconnect the power cord from the power outlet and disconnect any external devices. 4. Remove the computer cover. (Section 7.5). 5. Identify the slot into which you want to insert the expansion card. 6.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 8. Install the expansion card by sliding the card under the slot cover retention latch then pressing the card down into the slot on the system board. ✎ Be sure not to scrape other components in the chassis when installing an expansion card. 9. Rotate the slot cover retention latch back in place to secure the expansion card.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.9.3 PCI Express Expansion Card To remove a PCI Express expansion card: 1. If you have locked the Smart Cover Lock, restart the computer and enter Computer Setup to unlock the lock. 2. Turn off the computer properly through the operating system, then turn off any external devices. 3. Disconnect the power cord from the power outlet and disconnect any external devices. 4. Remove the computer cover. (Section 7.5). 5.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.10 PCI Riser Card Assembly and Backwall 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock (Section 7.2). 2. Prepare the computer for disassembly (Section 7.1). 3. Remove the computer cover (Section 7.5). 4. Remove all PCI and PCI Express expansion cards from the PCI expansion slots (Section 7.9). 5. Rotate the optical and diskette drive cage to its upright position. 6. Remove the security clip (Section 7.4.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7. Remove the SmartCover lock from the backwall of the chassis using the special security wrench and disconnect its cable from the system board. (Section 7.2) 8. Disconnect the data and power cables from the system board. 9. Disconnect the “Serial A” cable from the system board, remove the two screws that secure the serial connector to the backwall, then remove the serial connector. 10. Remove the fan shroud by lifting it up and out (Section 7.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 12. Remove the long mounting screw that secures the system board tray to the chassis. 13. Slide the system board tray assembly towards the front of the chassis about 6 cm (1/4 inch) and lift the system board up and out of the chassis.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 14. Remove the three screws that secure the backwall assembly to the chassis 1, then slide the backwall assembly a few millimeters/inches toward the space vacated by the power supply and lift out(2. 15. Slide the new backwall onto the rear chassis 1. Secure it with the three screws removed from the old backwall 2.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 16. Install the serial connector into the new backwall using the two screws that were removed from the serial connector in a previous step. Reconnect the “Serial A” cable to the system board. 17. Install the system board tray assembly. Be sure the keyhole slot on the system board sits properly over the locking pins. When the system board is in position, replace the long mounting screw to secure the system board to the chassis. 18.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 23. Rotate the drive cage back down to its normal position. Be sure to use proper cable handling and placement precautions. Ä CAUTION: Cables are very sensitive. Overbending, creasing, or pinching can damage cables. 24. Replace the fan shroud on top of the fan. 25. Replace the computer cover.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.11 Drives A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. Ä CAUTION: Make sure personal files on the hard drive are backed up to an external storage device before removing the hard drive. Failure to do so will result in data loss. After replacing the primary hard drive, you will need to run the Restore Plus! CD to load the HP factory-installed files. 7.11.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.11.2 Optical Drive Ä CAUTION: All removable media should be taken out of the drives before removing the drive from the computer. optical drive is a CD-ROM, CD-R/RW, DVD-ROM, DVD+R/RW, or CD-RW/DVD Combo ✎ An drive. 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock (Section 7.2). 2. Prepare the computer for disassembly (Section 7.1). 3. Remove the computer cover (Section 7.5). 4.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 6. Rotate the drive cage down to its normal position before trying to remove the drive. 7. Press the green drive retainer latch and slide the drive forward and lift it from the drive cage. 8. When replacing the drive, transfer the four screws from the old drive to the new one. The screws take the place of drive rails. Ä 7–26 CAUTION: Use only 5-mm long screws as guide screws. Longer screws can damage the internal components of the drive.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.11.3 External 3.5-inch Drive 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock (Section 7.2). 2. Prepare the computer for disassembly (Section 7.1). 3. Remove the computer cover (Section 7.5). 4. Remove the optical drive (Section 7.11.2). 5. Rotate the drive cage to its upright position by pulling on the green-tabbed lip. 6. Disconnect the signal 1 and power 2 cables from the drive.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 8. Press the green drive retention latch 1 located on the side of the diskette drive to disengage the drive from the drive cage and slide the diskette drive forward approximately 6mm (1/4 inch) 2. 9. Lift the rear of the drive up so that the rear guide screws clear the top of the drive cage 1. As the drive rises it automatically slides forward until it is free from the drive cage 2.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.11.4 Primary Hard Drive A Torx T-15 screwdriver is needed to remove and install the guide screws on a hard drive. Ä CAUTION: Make sure personal files on the hard drive are backed up to an external storage device before removing the hard drive. Failure to do so will result in data loss. After replacing the primary hard drive, you will need to run the Restore Plus! CD to load the HP factory-installed files.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 5. Remove the security clip that secures the backwall to the power supply. 6. Rotate the power supply to its full upright position.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7. Disconnect the power and data cables from the back of the hard drive. 8. Pull the tab that locks the drive in place away from the drive 1, slide the hard drive toward the front of the computer, then lift it up and out of the bay 2. To install a hard drive, reverse the above procedure. replacement hard drive kit includes several data cables. Make sure to use the cable that is ✎ The exactly the same as the factory-installed cable.
Removal and Replacement Procedures— Slim Tower (ST) Chassis replacing the hard drive, transfer the four screws from the old drive to the new one. The ✎ When screws take the place of drive rails. You will need a Torx T-15 screwdriver to remove and re-install the guide screws. HP has provided four extra 6-32 standard guide screws on the front of the chassis, under the computer cover. The 6-32 standard guide screws are silver and are used only for the hard drive.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.12 Fan Shroud 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Lift up on the fan shroud to remove it from the computer. When replacing the shroud, make sure that it does not get caught on the wires from either the fan or the speaker.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.13 Front I/O Devices 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove the two screws that secure the front I/O device to the chassis 1. 4. Rotate the drive cage to its full upright position. 5. Disconnect the front I/O cable from the system board. 6. Push the front I/O device into the chassis 2 and snake the cable through the tunnel 3 to remove the device from the chassis.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.14 Heatsink 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove the fan shroud (Section 7.12). 4. Disconnect the fan control cable from the system board. 5. Loosen the four captive screws that secure the heatsink to the system board tray. Ä CAUTION: Heatsink retaining screws should be removed in diagonally opposite pairs (as in an X) to even the downward forces on the processor.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.15 Processor 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove the fan shroud (Section 7.12). 4. Disconnect the heatsink control cable from the system board and remove the heatsink (Section 7.14). 5. Rotate the locking lever to its full open position 1. 6. Raise and rotate the microprocessor retainer to its fully open position 2. 7. Carefully lift the processor from the socket 3.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 3. If reusing the existing heatsink, clean the bottom of the heatsink with the alcohol pad provided in the spares kit. Ä CAUTION: Before reinstalling the heatsink you must clean the top of the processor and the bottom of the heatsink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply thermal grease to the top of the processor from the syringe supplied in the spares kit. 4.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.16 Speaker 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove the fan shroud (Section 7.12). 4. Remove any memory modules that might interfere with the screwdriver used for removing the speaker. 5. Disconnect the speaker wire from the system board. 6. Remove the two screws that secure the speaker to the chassis 1. 7.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.17 Power Supply Å WARNING: Voltage is always present on the system board when the computer is plugged into an active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and/or the AC outlet before opening the computer. 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove the security clip. 4.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 8. Rotate the power supply to its full upright position 1, then lift the power supply straight up and out of the chassis 2. To install the power supply, reverse the removal procedure. Ä 7–40 CAUTION: When installing the power supply cables, make sure they are properly positioned so they are not cut by the drive cage and are not pinched by the rotating power supply.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.18 Chassis Fan 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove the fan shroud (Section 7.12). 4. Disconnect the chassis fan cable from the system board. 5. Remove the four screws that secure the fan to the chassis, then remove the fan from the chassis. To install the chassis fan, reverse the removal procedure. Be sure to orient the air flow into the unit.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.19 System Board 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove all PCI and PCI Express expansion boards (Section 7.9). 4. Remove the fan shroud from the chassis (Section 7.11). 5. Remove the chassis fan from the chassis (Section 7.18) 6. Rotate the drive cage to its full upright position. 7. Remove the security clip (Section 7.4.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 9. Disconnect the serial port from the system board. 10. Disconnect the balance of the cables from the system board. 11. Remove the long mounting screw that secures the system board tray to the chassis.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 12. Slide the system board tray assembly towards the front of the chassis, about 6 mm (1/4 inch) and lift the system board up and out of the chassis. 13. Remove the heatsink from the system board and the system board tray (Section 7.14). To install the system board, reverse the removal procedure. heatsink should be installed on the system board before the system board is reinstalled in the ✎ The chassis.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.20 Drive Clutch Components 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove the optical drive and any other drive in the rotating drive cage (Section 7.11.2 and Section 7.11.3). 4. Remove the chassis fan (Section 7.18). 5. Remove the system board (Section 7.19). 6. Remove the five screws that secure the clutch base to the chassis. 7.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 8. Hold the drive cage in the upright position while removing the two screws that secure the clutch finger assembly to the drive cage. ✎ The clutch finger assembly doe not have to be removed to remove the power switch. To replace the drive clutch components, reverse the removal procedure.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.21 Power Switch Assembly 1. Prepare the computer for disassembly (Section 7.1). 2. Remove the computer cover (Section 7.5). 3. Remove all drives from the rotating drive cage (Section 7.11.2 and Section 7.11.3). 4. Remove the chassis fan (Section 7.18). 5. Remove the system board (Section 7.19). 6. Remove the drive ckutch base (Section 7.20). 7. Disconnect the power switch/LED cable from the system board. 8.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.22 Battery The battery that comes with this computer provides power to the real-time clock and has a lifetime of about three years. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer comes with a 3-volt lithium coin cell battery. lifetime of the lithium battery can be extended by plugging the computer into a live AC wall ✎ The socket.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.22.1 Type 1 Battery Holder 1. Lift the battery out of its holder. 2. Slide the replacement battery into position, positive side up. 3. The battery holder automatically secures the battery in the proper position. 4. Replace the computer access panel. 5. Plug in the computer and turn on power to the computer. 6. Reset the date and time, your passwords, and any special system setups, using Computer Setup.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.22.2 Type 2 Battery Holder 1. To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery. When the battery pops up, lift it out 1. 2. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the positive side up 2. Push the other edge down until the clamp snaps over the other edge of the battery. 3. Replace the computer access panel. 4.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.22.3 Type 3 Battery Holder 1. Pull back on the clip 1 that holds the battery in place, then remove the battery 2. 2. Insert the new battery and position the clip back in place. 3. Replace the computer access panel. 4. Plug in the computer and turn on power to the computer. 5. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide.
Removal and Replacement Procedures— Slim Tower (ST) Chassis 7–52 433611-001 Service Reference Guide, dx7300
A Connector Pin Assignments This appendix contains the pin assignments for many computer and workstation connectors. Some of these connectors may not be used on the product being serviced.
Connector Pin Assignments Ethernet RJ-45 Connector and Icon Pin Signal 1 2 3 4 (+) Transmit Data (-) Transmit Data (+) Receive Data Unused 5 6 7 8 Unused (-) Receive Data Unused Unused Ethernet AUI Connector and Icon Pin Signal Pin Signal 1 2 3 4 Ground Negative AUI Differential Collision Positive AUI Differential Collision Negative AUI Differential Transmit 9 10 11 12 Positive AUI Differential Receive +12V Ground Ground 5 6 7 8 Positive AUI Differential Transmit Ground Ground Negative AUI
Connector Pin Assignments Serial Interface, Powered and Non-Powered Connector and Icon Pin Signal 1 2 3 Carrier Detect (12V if powered) Receive Data Transmit Data 4 5 6 Data Terminal Ready Signal Ground Data Set Ready 7 8 9 Request to Send Clear to Send Ring Indicator (5V if powered) Pin Signal 1 2 3 4 +5 VDC - Data + Data Ground Pin Signal 1 (Tip) Audio_left 2 (Ring) Power_Right 3 (Shield) Ground Pin Signal 1 (Tip) Audio_Left 2 (Ring) Audio_Right 3 (Shield) Ground Pin Signal
Connector Pin Assignments Line-Out Audio Connector and Icon (1/8” miniphone) 1 2 3 Pin Signal 1 (Tip) Audio_Out_Left 2 (Ring) Audio_Out_Right 3 (Shield) Ground External Infrared Transceiver Connector and Icon Pin Signal Pin Signal Pin Signal 1 2 3 Transmit Receive Ground 4 5 6 5V Mode Not Used 7 8 Not Used Not Used Monitor Connector and Icon Pin Signal Pin Signal Pin Signal 1 2 3 Red Analog Green Analog Blue Analog 6 7 8 Ground Ground Ground 11 12 13 Not used DDC Serial Da
Connector Pin Assignments ATA/ATAPI (IDE) Standard Drive Cable Connector Pin Signal Pin Signal Pin Signal 1 2 3 4 5 Reset Ground DD7 DD8 DD6 15 16 17 18 19 DD1 DD14 DD0 DD15 Ground 29 30 31 32 33 DMAK Ground INTRQ IOCS16 DA1 6 7 8 9 10 DD9 DD5 DD10 DD4 DD11 20 21 22 23 24 (Key) DMARQ Ground DIOW Ground 34 35 36 37 38 PDIAG (cable detect) DA0 DA2 CS1FX CS3FX 11 12 13 14 DD3 DD12 DD2 DD13 25 26 27 28 DIOR Ground IORDY CSEL 39 40 DASP Ground CD-ROM 50-Pin Connector Connector Pin Sig
Connector Pin Assignments 24-Pin Power (CMT and MT models) Connector 24 13 12 1 Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 6 +3.3 V +3.3 V GND +5 V GND +5 V 7 8 9 10 11 12 GND POK +5 Vaux +12 V +12 V +3.3 V 13 14 15 16 17 18 +3.
Connector Pin Assignments 6-Pin Power (for CPU) (USDT, SFF, and ST models) Connector and Icon 6 4 Pin Signal 1 GND 2 GND 3 GND 4 12 V CPU 5 12 V CPU 6 +12 V SATA Data and Power Drive Connector Pin Signal Pin Signal Pin Signal Pin Signal S1 Ground S2 A+ S3 A- S4 Ground S5 B- S6 B+ S7 Ground P1 V 3.3 P2 V 3.3 P3 V 3.
Connector Pin Assignments PCI Express x1, x4, x8, and x16 PCI Express Connector Pin A Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 PRSNT1# +12V +12V GND JTAG2 6 7 8 9 10 JTAG3 JTAG4 JTAG5 +3.3v +3.
Connector Pin Assignments PCI Express x1, x4, x8, and x16 PCI Express Connector Pin B Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 +12V +12V RSVD GND SMCLK 6 7 8 9 10 SMDAT GND +3.3v JTAG1 3.
Connector Pin Assignments DVI Connector Connector and Icon Pin Signal 1 2 3 4 T.M.D.S. T.M.D.S. T.M.D.S. T.M.D.S. 5 6 7 8 9 10 11 12 A–10 Pin Signal 13 14 15 16 T.M.D.S. Data3+ +5V Power Ground (for +5V) Hot Plug Detect T.M.D.S. Data4+ DDC Clock DDC Data No Connect 17 18 19 20 T.M.D.S. T.M.D.S. T.M.D.S. T.M.D.S. Data0Data0+ Data0/5 Shield Data5- T.M.D.S. T.M.D.S. T.M.D.S. T.M.D.S. 21 22 23 24 T.M.D.S. T.M.D.S. T.M.D.S. T.M.D.S.
B Power Cord Set Requirements The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.
Power Cord Set Requirements Country-Specific Requirements Additional requirements specific to a country are shown in parentheses and explained below. Country Accrediting Agency Country Accrediting Agency Australia (1) Austria (1) Belgium (1) Canada (2) EANSW OVE CEBC CSA Italy (1) Japan (3) Norway (1) Sweden (1) IMQ METI NEMKO SEMKO Denmark (1) Finland (1) France (1) Germany (1) DEMKO SETI UTE VDE Switzerland (1) United Kingdom (1) United States (2) SEV BSI UL 1.
C POST Error Messages POST Error Messages An error message results if the Power-On Self-Test (POST) encounters a problem. This test runs when the system is turned on, checking assemblies within the computer and reporting any errors found. Not all computers use all of the codes listed. POST Error Messages Screen Message 101-Option ROM Checksum Error Probable Cause System ROM or expansion board option ROM checksum. Recommended Action 1. Verify the correct ROM. 2. Flash the ROM if needed. 3.
POST Error Messages POST Error Messages (Continued) Screen Message 162-System Options Not Set 163-Time & Date Not Set Probable Cause Configuration incorrect. RTC (real-time clock) battery may need to be replaced. Invalid time or date in configuration memory. RTC (real-time clock) battery may need to be replaced. 164-Memory Size Error Recommended Action Run Computer Setup and check configuration in Advanced > Onboard Devices. Reset the date and time under Control Panel.
POST Error Messages POST Error Messages (Continued) Screen Message Probable Cause Recommended Action 219-ECC Memory Module Detected. ECC Modules not supported on this platform Recently added memory module(s) support ECC memory error correction. 1. If additional memory was recently added, remove it to see if the problem remains. 301-Keyboard Error Keyboard failure. 2. Check product documentation for memory support information. 1. Reconnect keyboard with computer turned off. 2.
POST Error Messages POST Error Messages (Continued) Screen Message Probable Cause 511-CPU, CPUA, or CPUB Fan not detected CPU fan is not connected or may have malfunctioned. 512-Chassis, rear chassis, or front chassis fan not detected 514-CPU or Chassis Fan not detected. 601-Diskette Controller Error Chassis, rear chassis, or front chassis fan is not connected or may have malfunctioned. CPU or chassis fan is not connected or may have malfunctioned.
POST Error Messages POST Error Messages (Continued) Screen Message Probable Cause Recommended Action 918-Front USB Not Connected Front USB harness has been detached or unseated from system board. Reconnect or replace front USB harness. 921-Device in PCI Express slot failed to initialize. There is an incompatibility/problem with this device and the system or PCI Express Link could not be retrained to an x1. Try rebooting the system. If the error reoccurs, the device may not work with this system.
POST Error Messages POST Error Messages (Continued) Screen Message 1720-SMART Hard Drive Detects Imminent Failure Probable Cause Recommended Action Hard drive is about to fail. (Some hard drives have a firmware patch that will fix an erroneous error message.) 1. Determine if hard drive is giving correct error message. Enter Computer Setup and run the Drive Protection System test under Storage > DPS Self-test. 2. Apply firmware patch if applicable (available at www.hp.com/support). 3.
POST Error Messages POST Error Messages (Continued) Screen Message 2201-MEBx Module did not checksum correctly Probable Cause Memory error during POST execution of the Management Engine (ME) BIOS Extensions option ROM Recommended Action 1. Reboot the computer. 2. Unplug the power cord, re-seat the memory modules, and reboot the computer. 3. If the memory configuration was recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer. 4.
POST Error Messages POST Error Messages (Continued) Screen Message Probable Cause 2205-Interface error during MEBx execution MEBx operation experienced a hardware error during communication with ME. Invalid Electronic Serial Number. Electronic serial number has become corrupted. Recommended Action 1. Reboot the computer. 2. If the error persists, update to the latest BIOS version. 3. If the error still persists, replace the system board. 1. Run Computer Setup.
POST Error Messages POST Diagnostic Front Panel LEDs and Audible Codes This section covers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them. Å WARNING: When the computer is plugged into an AC power source, voltage is always applied to the system board.
POST Error Messages POST Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Red Power LED flashes three times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 3 Processor not installed (not an indicator of bad processor). Red Power LED flashes four times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.
POST Error Messages POST Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Red Power LED flashes six times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 6 Pre-video graphics error. Red Power LED flashes seven times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.
POST Error Messages POST Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity C–12 Beeps Possible Cause Recommended Action Red Power LED flashes nine times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 9 System powers on but is unable to boot. 1. Check that the voltage selector, located on the rear of the power supply (some models), is set to the appropriate voltage.
POST Error Messages POST Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity System does not power on and LEDs are not flashing. Beeps Possible Cause Recommended Action None System unable to power on. Press and hold the power button for less than 4 seconds. If the hard drive LED turns green, the power button is working correctly. Try the following: 1. Check that the voltage selector (some models), located on the rear of the power supply, is set to the appropriate voltage.
POST Error Messages C–14 433611-001 Service Reference Guide, dx7730
D Troubleshooting Without Diagnostics Preliminary Checklist This section describes some simple, preliminary tests and guidelines for troubleshooting the computer without using the diagnostics.
Troubleshooting Without Diagnostics Solving Minor Problems Solving Minor Problems Problem Cause Possible Solution Computer appears locked up and will not turn off when the power button is pressed. Software control of the power switch is not functional. Computer will not respond to USB keyboard or mouse. Computer is in standby mode. 1. Press and hold the power button for at least four seconds until the computer turns off. 2. Disconnect electrical plug from outlet.
Troubleshooting Without Diagnostics Solving Minor Problems (Continued) Problem Cause Possible Solution Cannot remove computer cover or access panel. Smart Cover Lock, featured on some computers, is locked. Poor performance is experienced. Processor is hot. 1. Unlock the Smart Cover Lock using Computer Setup. 2. Use the Smart Cover FailSafe Key in case of forgotten password, power loss, or computer malfunction. 1. Ensure airflow to the computer is not blocked. Leave a 10.
Troubleshooting Without Diagnostics Solving Minor Problems (Continued) Problem Cause Possible Solution Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. Processor thermal protection activated: System does not power on and the LEDs on the front of the computer are not flashing.
Troubleshooting Without Diagnostics Solving Power Supply Problems Solving Power Supply Problems Problem Cause Solution Power supply shuts down intermittently. Voltage selector switch on rear of computer chassis (some models) is not switched to correct line voltage (115V or 230V). Select the proper AC voltage using the selector switch. Power supply will not turn on because of internal power supply fault. Replace the power supply.
Troubleshooting Without Diagnostics Solving Power Supply Problems (Continued) Problem Cause Solution Power LED flashes Red, four times, once every second, followed by a two second pause, and the computer beeps four times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. Power failure (power supply is overloaded). 1. Check that the voltage selector (some models), is set to the appropriate voltage. Proper voltage depends on the region. 2.
Troubleshooting Without Diagnostics Solving Diskette Problems Solving Diskette Problems Problem Cause Solution Diskette drive light stays on. Diskette is damaged. In Microsoft Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. Diskette is incorrectly inserted. Remove diskette and reinsert. Drive cable is not properly connected. Reconnect power cable. Ensure that all four pins are connected. Cable is loose.
Troubleshooting Without Diagnostics Solving Diskette Problems (Continued) Problem Cause Solution Cannot format diskette. (continued) Legacy diskette writes are disabled in Computer Setup. Enter Computer Setup and enable Legacy Diskette Write in Storage > Storage Options. A problem has occurred with a disk transaction. The directory structure is bad, or there is a problem with a file. In Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools.
Troubleshooting Without Diagnostics Solving Hard Drive Problems Solving Hard Drive Problems Problem Cause Solution Hard drive error occurs. Hard disk has bad sectors or has failed. Use a utility to locate and block usage of bad sectors. If necessary, reformat the hard disk. In Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. Disk transaction problem.
Troubleshooting Without Diagnostics Solving Hard Drive Problems (Continued) Problem Cause Solution Nonsystem disk/NTLDR missing message (continued) System is trying to start from the hard drive, but the hard drive may have been damaged. System files missing or not properly installed. 1. Insert a bootable diskette into the diskette drive and restart the computer. 2. Check hard drive format using fdisk: If NTFS formatting, use a third party reader to evaluate the drive.
Troubleshooting Without Diagnostics Solving Hard Drive Problems (Continued) Problem Cause Solution Computer will not boot from hard drive. (continued) The device is attached to a SATA port that has been disabled in Computer Setup. Run the Computer Setup utility and ensure the device's SATA port is enabled in Storage > Storage Options. Hard drive is damaged. Observe if the front panel Power LED is blinking RED and if any beeps are heard. See the Worldwide Limited Warranty for terms and conditions.
Troubleshooting Without Diagnostics Solving Media Card Reader Problems Unable to access data on the media card after inserting it into a slot. The media card is not inserted properly, is inserted in the wrong slot, or is not supported. Ensure that the card is inserted properly with the gold contact on the correct side. The green LED will light if inserted properly. Do not know how to remove a media card correctly. The computer’s software is used to safely eject the card.
Troubleshooting Without Diagnostics Solving Display Problems Solving Display Problems Problem Cause Solution Blank screen (no video). Monitor is not turned on and monitor light is not on. Turn on the monitor and check that the monitor light is on. Bad monitor. Try a different monitor. The cable connections are not correct. Check the cable connections from the monitor to the computer and to the electrical outlet. Screen blanking utility installed or energy saver features enabled.
Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Solution Blank screen (no video). (continued) Monitor settings in the computer are not compatible with the monitor. 1. Restart the computer and press F8 during startup when you see “Press F8” in the bottom right corner of the screen. 2. Using the keyboard arrow keys, select Enable VGA Mode and press Enter. 3. In Windows Control Panel, double-click the Display icon and select the Settings tab. 4.
Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Solution Blank screen and the power LED flashes Red seven times, once every second, followed by a two second pause, and the computer beeps seven times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. System board failure (ROM detected failure prior to video.) Replace the system board. Monitor does not function properly when used with energy saver features.
Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Solution Image is not centered. Position may need adjustment. Press the Menu button to access the OSD menu. Select ImageControl/Horizontal Position or VerticalPosition to adjust the horizontal or vertical position of the image. “No Connection, Check Signal Cable” displays on screen. Monitor video cable is disconnected. Connect the video cable between the monitor and computer.
Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Solution Certain typed symbols do not appear correct. The font you are using does not support that particular symbol. Use the Character Map to locate the and select the appropriate symbol. Click Start > All Programs > Accessories > System Tools > Character Map. You can copy the symbol from the Character Map into a document.
Troubleshooting Without Diagnostics Solving Audio Problems (Continued) Problem Cause Solution Sound does not come out of the speaker or headphones. (continued) External speakers plugged into the wrong audio jack. See the sound card documentation for proper speaker connection. Digital CD audio is not enabled. Enable digital CD audio: 1. From the Control Panel, select System. 2. On the Hardware tab, click the Device Manager button. 3. Right-click on the CD/DVD device and select Properties. 4.
Troubleshooting Without Diagnostics Solving Audio Problems (Continued) Problem Cause Solution Computer appears to be locked up while recording audio. The hard disk may be full. Before recording, make sure there is enough free space on the hard disk. You can also try recording the audio file in a compressed format. Solving Printer Problems Solving Printer Problems Problem Cause Solution Printer will not print. Printer is not turned on and online. Turn the printer on and make sure it is online.
Troubleshooting Without Diagnostics Solving Keyboard and Mouse Problems Solving Keyboard and Mouse Problems Problem Cause Solution Keyboard commands and typing are not recognized by the computer. Keyboard connector is not properly connected. 1. On the Windows Desktop, click Start. 2. Click Shut Down. The Shut Down Windows dialog box is displayed. 3. Select Shut down. 4. After the shutdown is complete, reconnect the keyboard to the back of the computer and restart the computer.
Troubleshooting Without Diagnostics Solving Keyboard and Mouse Problems (Continued) Problem Cause Solution Mouse does not respond to movement or is too slow. Mouse connector is not properly plugged into the back of the computer. 1. Press Ctrl and Esc at the same time (or press the Windows logo key) to display the Start menu. 2. Use the up or down arrow key to select Shut Down and then press Enter. 3. Use the up or down arrow key to select the Shut Down option and then press Enter. 4.
Troubleshooting Without Diagnostics Solving Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional diskette drive. If you install a plug and play device, Windows XP automatically recognizes the device and configures the computer. If you install a non–plug and play device, you must reconfigure the computer after completing installation of the new hardware.
Troubleshooting Without Diagnostics Solving Hardware Installation Problems (Continued) Problem Cause Solution Computer will not start. Wrong memory modules were used in the upgrade or memory modules were installed in the wrong location. 1. Review the documentation that came with the system to determine if you are using the correct memory modules and to verify the proper installation. ✎ DIMM 1 must always be installed. 2. Observe the beeps and LED lights on the front of the computer.
Troubleshooting Without Diagnostics Solving Network Problems These guidelines do not discuss the process of debugging the network cabling. Solving Network Problems Problem Cause Solution Wake-on-LAN feature is not functioning. Wake-on-LAN is not enabled. Enable Wake-on-LAN. 1. Select Start > Control Panel. 2. Double-click Network Connections. 3. Double-click Local Area Connection. 4. Click Properties. 5. Click Configure. 6.
Troubleshooting Without Diagnostics Solving Network Problems (Continued) Problem Cause Solution Diagnostics reports a failure. The cable is not securely connected. Ensure that the cable is securely attached to the network connector and that the other end of the cable is securely attached to the correct device. The cable is attached to the incorrect connector. Ensure that the cable is attached to the correct connector. There is a problem with the cable or a device at the other end of the cable.
Troubleshooting Without Diagnostics Solving Network Problems (Continued) D–26 Problem Cause Solution Network controller stops working without apparent cause. (continued) The network controller is defective. Replace the system board. New network card will not boot. New network card may be defective or may not meet industry-standard specifications. Install a working, industry-standard NIC, or change the boot sequence to boot from another source.
Troubleshooting Without Diagnostics Solving Memory Problems Ä CAUTION: Power may still be supplied to the DIMMs when the computer is turned off (depending on the Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a DIMM module. For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the system will not boot the operating system.
Troubleshooting Without Diagnostics Solving Memory Problems (Continued) Problem Cause Solution Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. Memory is installed incorrectly or is bad. 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. 3.
Troubleshooting Without Diagnostics Solving CD-ROM and DVD Problems Solving CD-ROM and DVD Problems Problem Cause Solution System will not boot from CD-ROM or DVD drive. The device is attached to a SATA port that has been disabled in the Computer Setup utility. Run the Computer Setup utility and ensure the device's SATA port is enabled in Storage > Storage Options. Removable Media Boot is disenabled through the Computer Setup utility.
Troubleshooting Without Diagnostics Solving CD-ROM and DVD Problems (Continued) Problem Cause Solution Movie will not play in the DVD drive. Movie may be regionalized for a different country. See the documentation that came with the DVD drive. Decoder software is not installed. Install decoder software. Damaged media. Replace media. Movie rating locked out by parental lock. Use DVD software to remove parental lock. Media installed upside down. Reinstall media.
Troubleshooting Without Diagnostics Solving Drive Key Problems Solving Drive Key Problems Problem Cause Solution Drive Key is not seen as a drive letter in Windows XP. The drive letter after the last physical drive is not available. Change the default drive letter for the Drive Key in Windows XP. USB Drive Key not found (identified). The device is attached to a USB port that has been hidden in Computer Setup.
Troubleshooting Without Diagnostics Solving Front Panel Component Problems Solving Front Panel Component Problems Problem Cause Solution A USB device, headphone, or microphone is not recognized by the computer. It is not properly connected. The device does not have power. The correct device driver is not installed. 1. Turn off the computer. 2. Reconnect the device to the front of the computer and restart the computer.
Troubleshooting Without Diagnostics Solving Internet Access Problems Solving Internet Access Problems Problem Cause Solution Unable to connect to the Internet. Internet Service Provider (ISP) account is not set up properly. Verify Internet settings or contact the ISP for assistance. Modem is not set up properly. Reconnect the modem. Verify the connections are correct using the quick setup documentation. Web browser is not set up properly.
Troubleshooting Without Diagnostics Solving Internet Access Problems (Continued) Problem Cause Solution Internet takes too long to download Web sites. Modem is not set up properly. Verify that the correct modem speed and COM port are selected. For Windows XP 1. Select Start > Control Panel. 2. Double-click System. 3. Click the Hardware tab. 4. In the Device Manager area, click the Device Manager button. 5. Double-click Ports (COM & LPT). 6.
Troubleshooting Without Diagnostics Solving Internet Access Problems (Continued) Problem Cause Solution Internet takes too long to download Web sites. (continued) Modem is not set up properly. (continued) 8. Under Device usage, verify the modem is enabled. 9. If there are further problems, click the Troubleshoot button and follow the on-screen instructions.
Troubleshooting Without Diagnostics D–36 433611-001 Service Reference Guide, dx7300
E System Board and Riser Board Reference Designators These reference designators are used on most but not all HP system and riser boards.
System Board and Riser Board Reference Designators E–2 Designator Component (Continued) J68 J69 J70 J71 J72 Stacked mouse (Top)/keyboard (Bottom) connector Video connector, VGA Primary single USB connector Secondary single USB port Microphone jack J73 J74 J75 J76 J77 Line-in jack Line-out jack Headphone jack Volume control Double-stacked headphone (Bottom)/microphone (Top) connector J78 J80 J81 J82 J83 Double-stacked line-in (Top)/line-out (Bottom) connector Stacked serial/audio connector Primary d
System Board and Riser Board Reference Designators Designator Component (Continued) P23 P24 P25 P26 P27 Header for front panel audio Header for front panel USB Internal USB connector 1 Internal USB connector 2 MultiBay header P29 P30 P40 P41 P52 SCSI LED connector PCI extender slot (female) Blade PC graphics connector (outboard) Blade PC graphics connector (inboard) Second serial port P54 P55 P58 P60 P61 Primary serial port Double stack serial port, Top = Serial B, Bottom = Serial A Riser edge conne
System Board and Riser Board Reference Designators E–4 Designator Component (Continued) U6 U7 U10 U11 U12 Clock chip 64 bit Bridge LOM1 LOM1 EEPROM LOM1 PHY U13 U14 U16 U17 U18 Audio Codec Audio amplifier LOM2 LOM2 EEPROM LOM2 PHY U19 U20 U21 U29 U30 U31 SPI ROM - SOIC-8 footprint Fan controller SPI ROM - SO16 footprint TMDS controller Parallel port diode array First serial port transceiver U32 U46 U50 U51 U52 Second serial port transceiver VRM controller USB front port power switch First USB rea
F Memory The dx7300 and dc7700 series computers with Intel-based processors come with double data rate 2 synchronous dynamic random access memory (DDR2-SDRAM) dual inline memory modules (DIMMs). Ä CAUTION: DDR and DDR2 memory modules are not interchangeable. DDR2-SDRAM DIMMs The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory module sockets are populated with at least one preinstalled memory module.
Memory The system board shown may differ from the one in your product. Item Description Socket Color 1 DIMM socket XMM1, Channel A Black 2 DIMM socket XMM2, Channel A White 3 DIMM socket XMM3, Channel B White 4 DIMM socket XMM4, Channel B White The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the DIMMs are installed. F–2 ■ The system will operate in single channel mode if the DIMM sockets are populated in one channel only.
Index 4-pin power pin assignments A–6 24-pin MicroFit power pin assignments A–6 24-pin power pin assignments A–6 6-pin power pin assignments A–7 A access panel MT removal and replacement 6–4 Active Management Technology 3–7 adding devices 1–1 Altiris, Deployment Solution Agent 3–2 asset tracking 3–16 ATA/ATAPI (IDE) drive cable pin assignments A–5 B Backup and Recovery Manager 1–2 backwall, SFF removal and replacement 7–18 battery disposal 5–9 MT removal and replacement 6–35 SFF removal and replacement 7–
Index Storage menu 2–5 configuration settings, recovering 2–14 configuring power button 3–15 connections SFF system board 6–10, 7–12 connector pin assignments A–1 to A–10 Convertible Minitower See CMT country-specific power cord set requirements B–2 cover lock, smart 3–24 D date and time display problems D–2 DDR2 memory F–1 deleting password 3–21 delimiter characters, table 3–22 device drivers, installing 1–1 diagnostic tool for hard drives 3–26 diagnostics utility 2–14 to 2–18 DIMMs F–1 disassembly prepa
Index G line-out audio pin assignments A–4 locking Smart Cover Lock 3–25 general power cord set requirements B–1 grounding methods 5–4 M H hard drive capacities 4–3 diagnostic tool 3–26 MT removal and replacement 6–18 proper handling 5–8 SATA characteristics 4–1 SFF removal and relacement 7–29 hardware, Proactive Change Notification (PCN) 3–8 headphone pin assignments A–3 heatsink MT removal and replacement 6–27 SFF removal and replacement 7–35 hood sensor SFF removal and replacement 7–5 HP Backup and
Index power supply removal and replacement 6–32 power switch assembly removal and replacement 6–26 preparation for disassembly 6–1 processor removal and replacement 6–29 speaker removal and replacement 6–31 system board removal and replacement 6–34 N national keyboard delimiter characters 3–22 notification of hardware and software changes (PCN) 3–8 O operating guidelines 5–5 optical drive MT removal and replacement 6–18 SFF removal and replacement 7–25 overheating, prevention 5–5 P padlock MT removal an
Index removal and replacement MT 3.5" drive bezel 6–8 MT 5.
Index expansion card retainer removal and replacement 7–14 external 3.
Index HP Client Foundation Suite 3–6 HP Client Management Premium Suite 3–5 HP Client Manager 3–5 HP OpenView Client Configuration Manager 3–6 HP OpenView Management Suite 3–6 HP ProtectTools Security Manager 3–5 HPQFlash 3–10 Proactive Change Notification (PCN) 3–8 Remote ROM BIOS Flash 3–9 Service Reference Guide, dx7300 replicating setup 3–12 replicating setup, BIOS utility 3–12 Restore Plus! CD 1–2 ROM BIOS Flash 3–9 Subscriber’s Choice 3–9 support software 3–16 support software CD subscription 1–1 w
Index Index–8 433611-001 Service Reference Guide, dx7300
