Service Reference Guide HP Compaq dx2300 and dx2308 Business PC
© Copyright 2007 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. and other countries. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
About This Book WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information. NOTE: Text set off in this manner provides important supplemental information.
iv About This Book ENWW
Table of contents 1 Install the Operating System Installing or Upgrading Device Drivers ........................................................................................ 1 HP Backup and Recovery Manager ............................................................................................ 2 2 Computer Setup (F10) Utility Computer Setup (F10) Utilities ................................................................................................... 3 Using Computer Setup (F10) Utilities .....
Fault Notification and Recovery ................................................................................ 23 Drive Protection System ............................................................................................ 23 Surge-Tolerant Power Supply .................................................................................... 24 Thermal Sensor .......................................................................................................
PCI/PCIe Expansion Card ........................................................................................ 45 Cable Management .............................................................................................................. 47 Cable Connections .................................................................................................. 48 Drives ...................................................................................................................................
General Requirements ............................................................................................................ 81 Japanese Power Cord Requirements ......................................................................................... 81 Country-Specific Requirements ................................................................................................. 81 Appendix C Troubleshooting Safety and Comfort ............................................................................
1 Install the Operating System NOTE: If the computer was shipped with Microsoft Windows Vista loaded, you will be prompted to register the computer with HP Total Care before installing the operating system. You will see a brief movie followed by an online registration form. Fill out the form, click the Begin button, and follow the instructions on the screen. If the computer was not shipped with a Microsoft operating system, some portions of this documentation do not apply.
HP Backup and Recovery Manager The HP Backup and Recovery Manager is an easy-to-use, versatile application that is pre-loaded on each system and allows you to: ● create Recovery Points to back up the entire system incrementally ● back up the entire system in a single hard archive ● back up individual files Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually.
2 Computer Setup (F10) Utility Computer Setup (F10) Utilities Use Computer Setup (F10) Utility to do the following: ● 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.
Five menu headings appear on the Computer Setup Utility screen: ● System Information ● Main ● Advanced ● Boot ● PC Health ● Computer Setup-Actions Use the arrow keys to select the appropriate heading, then press Enter. Use the arrow (up and down) keys to select the option you want, then press Enter. To return to the previous screen, press Esc. 4. To apply and save changes, press the F10 key. If you have made changes that you do not want applied, press the F9 key to exit without saving.
Table 2-2 Computer Setup—System Information (continued) ENWW Cache Size (view only) Memory Size (view only) Integrated MAC (view only) UUID (view only) System Serial # (view only) Asset Tracking Number (view only) Computer Setup (F10) Utilities 5
Computer Setup—Main NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-3 Computer Setup—Main Option Description Date (mm:dd:yy) Allows you to set system date. Time (hh:mm:ss) Allows you to set system time.
Table 2-3 Computer Setup—Main (continued) POST Delay ● All but Keyboard ● All but Diskette ● All but Diskette/Keyboard Allows you to set a POST delay to: ● 0 seconds ● 5 seconds ● 10 seconds ● 15 seconds ● 30 seconds Computer Setup—Advanced NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-4 Computer Setup—Advanced Option Description Execute Disable Bit Disables/enables hardware DEP functionality.
Table 2-4 Computer Setup—Advanced (continued) Onboard Parallel Port Parallel Port Mode After AC Power Loss 8 ● 3E8/IRQ4 ● 2E8/IRQ3 Allows you to select a setting for the onboard parallel port: ● Disabled ● 378/IRQ7 ● 278/IRQ5 ● 3BC/IRQ7 Allows you to select parallel port mode: ● SPP ● EPP ● ECP ● ECP+EPP ● Normal Allows you to select system power loss behavior: ● On ● Off ● Last State Wake on PCI Device from S5 Disables/enables waking up from S5 by PCI device.
Computer Setup—Boot NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-5 Computer Setup—Boot Option Description Device Boot Disabling Allows disabling of bootable device groups. Choose from: ● None ● USB ● Internal ODD ● Internal FDD ● USB+ODD+FDD F9 Boot Menu Disables/enables F9 Boot Menu. Removable Device Boot Seq. Allows you to specify the order of attached removable devices (such as Floppy Discs or USB FDD).
Computer Setup—PC Health NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-6 Computer Setup—PC Health Option Description System Fan Fail Check Disables/enables system fan detection during POST. Smart Fan Function Disables/enables smart fan functionality.
Backing Up the CMOS 1. Make sure the computer to be backed up is turned on. Connect the removable storage to the computer. 2. Boot to DOS. 3. Type N:\folder\BIOS.exe SAVE:ABC001.DAT (where N is the drive letter of the removable storage) to save the CMOS setting to the removable storage device. Restoring the CMOS ENWW 1. Make sure the target computer is turned on. Connect the removable storage to the target computer. 2. Boot to DOS. 3. Type N:\folder\BIOS.exe LOAD:ABC001.
12 Chapter 2 Computer Setup (F10) Utility ENWW
3 HP Insight Diagnostics HP Insight Diagnostics NOTE: HP Insight Diagnostics is included on CD with some computer models only. The HP Insight Diagnostics utility allows you to view information about the hardware configuration of the computer and perform hardware diagnostic tests on the subsystems of the computer. The utility simplifies the process of effectively identifying, diagnosing, and isolating hardware issues. The Survey tab is displayed when you invoke HP Insight Diagnostics.
NOTE: It is recommended that you accept the assigned default keyboard for your language unless you want to test your specific keyboard. 5. In the End User License Agreement page, click Agree if you agree with the terms. The HP Insight Diagnostics utility launches with the Survey tab displayed. Survey Tab The Survey tab displays important system configuration information.
For each test type, there are two test modes to choose from: ● Interactive Mode—Provides maximum control over the testing process. The diagnostic software will prompt you for input during tests that require your interaction. You may also determine whether the test passed or failed. ● Unattended Mode—Does not display prompts and requires no interaction. If errors are found, they are displayed when testing is complete. To begin testing: 1. Select the Test tab. 2.
Log Tab The Log tab contains a Test Log tab and an Error Log tab. The Test Log displays all tests that have been executed, the number of times of execution, the number of times failed, and the time it took to complete each test. The Clear Test Log button will clear the contents of the Test Log. The Error Log displays the tests for devices that have failed during the diagnostic testing and includes the following columns of information. ● The Device section displays the device tested.
NOTE: Do not remove the diskette or USB key until you see a message indicating that the html file has been written to the media. 5. Print the information from the storage device used to save it. NOTE: To exit HP Insight Diagnostics, click Exit Diagnostics button in the bottom left corner of the screen then remove the Documentation and Diagnostics CD from the optical drive. Downloading the Latest Version of HP Insight Diagnostics 1. Go to http://www.hp.com. 2. Click the Software & Driver Downloads link.
18 Chapter 3 HP Insight Diagnostics ENWW
4 ENWW Desktop Management 19
Remote System Installation Remote System Installation allows you to start and set up the system using the software and configuration information located on a network server by initiating the Preboot Execution Environment (PXE).
ROM Flash The computer's BIOS is stored in a programmable flash ROM (read only memory). By establishing a setup password in the Computer Setup (F10) Utility, you can protect the ROM from being unintentionally updated or overwritten. This is important to ensure the operating integrity of the computer. Should you need or want to upgrade the BIOS, you may download the latest BIOS images from the HP driver and support page, http:///www.hp.com/support/files.
HP Web Site Support HP engineers rigorously test and debug software developed by HP and third-party suppliers, and develop operating system specific support software, to ensure performance, compatibility, and reliability for HP computers. When making the transition to new or revised operating systems, it is important to implement the support software designed for that operating system.
warm boot or restart from Windows, if neither attempt succeeds, POST will halt and the user will be instructed to cycle power. DriveLock Applications The most practical use of the DriveLock security feature is in a corporate environment. The system administrator would be responsible for configuring the hard drive which would involve, among other things, setting the DriveLock master password and a temporary user password.
Surge-Tolerant Power Supply An integrated surge-tolerant power supply provides greater reliability when the computer is hit with an unpredictable power surge. This power supply is rated to withstand a power surge of up to 2000 volts without incurring any system downtime or data loss. Thermal Sensor The thermal sensor is a hardware and software feature that tracks the internal temperature of the computer.
5 Serial ATA (SATA) Drive Guidelines and Features NOTE: HP only supports the use of SATA hard drives on these models of computer. No Parallel ATA (PATA) drives are supported. 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 39.37 in (100 cm) Data interface voltage differential 400-700 mV Drive voltages 3.3 V, 5 V, 12 V Jumpers for configuring drive N/A Data transfer rate 3.
SMART ATA 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. The SMART drive tracks fault prediction and failure indication parameters such as reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is imminent, it generates a fault alert.
6 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. 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.
Figure 6-2 dx2308 28 Chapter 6 Identifying the Chassis, Routine Care, and Disassembly Preparation ENWW
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. The device may function normally for a while, but it has been degraded in the internal layers, reducing its life expectancy.
● Avoid contact with pins, leads, or circuitry. ● Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam. 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.
ENWW ● Conductive foam ● Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance ● Static-dissipative table or floor mats with hard tie to ground ● Field service kits ● 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 shieldi
Operating Guidelines To prevent overheating and to help prolong the life of the computer: ● Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold. ● Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow. ● Never restrict the airflow into the computer by blocking any vents or air intakes.
To clean the computer case, follow the procedures described below: ● To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab. ● For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth or swab dampened with clear water. ● For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will evaporate quickly and not leave a residue.
Cleaning the Mouse Before cleaning the mouse, ensure that the power to the computer is turned off. ● Clean the mouse ball by first removing the retaining plate and the ball from the housing. Pull out any debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly. ● To clean the mouse body, follow the procedures in Cleaning the Computer Case on page 32.
Cables and Connectors Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.
36 Chapter 6 Identifying the Chassis, Routine Care, and Disassembly Preparation ENWW
7 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. NOTE: Not all features listed in this guide are available on all computers. Preparation for Disassembly 1. Close any open software applications. 2. Exit the operating system. 3.
Access Panel 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37). 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. Disconnect the power cord from the computer and from the power source (1). 3. Remove the two screws that secure the access panel to the computer chassis (2). 4.
Front Bezel 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38 ) 3. Press down on all three tabs (1) on the left side of the bezel then, rotate the bezel off the chassis (2), beginning with the left side and then the right side. To reinstall the front bezel, reverse the removal procedure.
Front Drive Bezels 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38) 3. Remove the front bezel (Front Bezel on page 39) 5.25" Drive Bezel Blank While facing the inside of the front bezel, press the two retaining tabs on the right towards the outer edge of the bezel (1) and pull the bezel blank inwards (2) to remove it. To install a bezel blank, reverse the removal procedure.
Removing a 3.5” Drive Bezel Blank While facing the inside of the front bezel, press outward on the retaining tabs on each side of the bezel blank (1) and pull the bezel blank inwards to remove it. NOTE: To install a 3.5” bezel blank, press the blank inward from the inside of the front bezel so that it snaps into place. ENWW Removing a 3.
Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2SDRAM) dual inline memory modules (DIMMs). 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 two industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM.
CAUTION: When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the module. 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37). 2. Remove the access panel and lay the computer down on its side to make it easier to work on. (Access Panel on page 38) WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system components to cool before touching. 3.
Expansion Cards Expansion Slot Cover Lock 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38) 3. Lay the computer down on its side to make it easier to work on. 4. On the rear of the computer, remove the screw that secures the slot cover lock in place (1) then, slide the slot cover lock up and away from the slots to remove it from the computer (2). To reinstall the slot cover lock, reverse the removal procedure.
PCI/PCIe Expansion Card To remove an expansion card continue with step 1. To install an expansion card in an existing empty slot go to step 9. 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38) 3. Lay the computer down on its side to make it easier to work on. 4. Remove the slot cover lock (Expansion Slot Cover Lock on page 44) If you are installing an expansion card for the first time go to step 9.
10. With the card aligned so the mounting bracket will fit firmly against the computer backwall, slide the expansion card into the expansion socket and press it firmly into place. NOTE: When you install an expansion card, make sure you press firmly on the card so that the entire connector seats properly in the expansion card socket. 11. Reinstall the slot cover lock and its retaining screw. 12. Replace the access panel. 13. Connect external cables to the installed card, if needed.
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. ● When folding a flat ribbon cable, never fold to a sharp crease. Sharp creases may damage the wires. ● Some flat ribbon cables come prefolded. Never change the folds on these cables.
Cable Connections 48 Cable To Cable Designator Power Supply System board, 24–pin P1 Power Supply CPU power, 4-pin P2 Power Supply Not used P3 Power Supply Not used P4 Power Supply 2nd SATA Hard drive P5 Power Supply 1st SATA Hard drive P6 Power Supply Diskette drive P7 Power Supply 2nd Optical drive P8 Power Supply 1st Optical drive P9 Cable To PCA Designator Diskette drive System board FDD1 1st SATA Hard drive System board SATA1 2nd SATA Hard drive System board SA
Drives The computer supports up to five 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. 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.
5.25" Drive 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38) 3. Remove the front bezel (Front Bezel on page 39) 4. Disconnect the power, data, and audio cables, as necessary, from the back of the drive. 5. Remove the two screws that secure the drive in the drive cage (1). 6. Slide the drive out of the drive cage, as shown in the illustration below (2). 7.
3.5” Drive If you are installing a device for the first time in the external 3.5” drive bay you will need to use a flat blade screwdriver to break out the metal shield. The 3.5” external drive bay may be populated with a diskette drive or a media card reader. The removal procedure is the same for both devices. 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38) 3. Remove the front bezel (Front Bezel on page 39) 4.
NOTE: There are a total of eight extra guide/retainer screws on the front of the chassis behind the bezel. Four have Unified Standard (US) #6–32 standard threads and for have M3 metric threads. US screws are used for used for hard drives and have a silver finish. Metric screws are used for all other drives and have a black finish. Be sure to install the appropriate guide screws into the drive.
Removing a 3.5” Hard Drive 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38) 3. Remove the front bezel (Front Bezel on page 39) 4. Disconnect the power, and data cables from the back the drive. 5. Remove the four retaining screws that secure the drive in the drive cage (1). 6. Slide the drive out of the rear of the drive bay (2). To replace the hard drive cage, reverse the removal procedure.
Front I/O Panel Housing Assembly 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 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 (Access Panel on page 38) 3. Remove the front bezel (Front Bezel on page 39) 4. Free the two cables from the cable tie that is attached to the chassis. 5.
Power Switch Assembly 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37). 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 (Access Panel on page 38) 3. Disconnect the braided cables from the system board. 4. Free the braided cables from the cable tie that is attached to the chassis. 5. Squeeze the top of the switch holder (1), rotate the switch, and remove it from the chassis.
Speaker 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38) 3. Remove the front bezel (Front Bezel on page 39) 4. Disconnect the speaker cable from the system board. 5. Free the cable from the cable tie that is attached to the chassis. 6. Remove the screw that secures the speaker to the inside of the chassis (1) then, remove the speaker (2) by sliding it out of the retaining clips..
Second Serial Port ENWW 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37). 2. Remove the access panel (Access Panel on page 38). 3. Disconnect the serial port cable from the system board. 4. Disconnect the serial port cable from the two clips (1) mounted on the inside of the chassis. 5. Remove the two retaining screws from the outside of the chassis that secure the serial port to the chassis (2) and remove the serial port.
System Fan 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38) 3. Disconnect the cable that connects the system fan to the system board. 4. Cut the tie-wrap (1) at the bottom of the fan that secures the CPU power cable (2) to the fan. 5. Remove the screws that secure the fan to the chassis and remove the fan. To install the fan, reverse the removal procedures.
Heatsink 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel and lay the computer down on its side to make it easier to work on. (Access Panel on page 38) 3. Disconnect the heatsink control cable from the system board. 4. Loosen the four captive screws that secure the heatsink to the system board. 5. Lift the heatsink from atop the processor and set it on its side to keep from contaminating the work area with thermal grease.
Processor 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37). 2. Remove the access panel and lay the computer down on its side to make it easier to work on. (Access Panel on page 38). 3. Disconnect the heatsink control cable from the system board and remove the heatsink. Heatsink on page 59 4. Rotate the locking lever to its full open position (1). 5. Raise and rotate the microprocessor retainer to its full open position (2) 6.
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 4 captive screws and attach the heatsink control cable to the system board. CAUTION: Heatsink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heatsink on the processor.
System Board 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel.(Access Panel on page 38) 3. Remove the front bezel and lay the computer down on its side to make it easier to work on. (Front Bezel on page 39). 4. Disconnect the power, and data cables from the back of all installed drives. 5. Disconnect all cables from the system board. 6. Remove the heatsink from the system board (Heatsink on page 59) 7.
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. NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket. The lithium battery is only used when the computer is NOT connected to AC power.
Type 1 Battery Holder 64 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. Refer to the Computer Setup (F10) Utility Guide.
Type 2 Battery Holder ENWW 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. Plug in the computer and turn on power to the computer. 5.
Type 3 Battery Holder 66 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.
Power Supply 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. ENWW 1. Prepare the computer for disassembly (Preparation for Disassembly on page 37) 2. Remove the access panel (Access Panel on page 38). 3.
To install the power supply, reverse the removal procedure. NOTE: When attaching the CPU power cable to the system board, use the tie-wrap provided in the spares kit to secure the cable to the lower right corner of the fan cage. This will prevent the wire bundle from interfering with the chassis fan blades.
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.
Ethernet RJ-45 Connector and Icon Pin Signal 1 (+) Transmit Data 2 (-) Transmit Data 3 (+) Receive Data 4 Unused 5 Unused 6 (-) Receive Data 7 Unused 8 Unused Ethernet AUI Connector and Icon 70 Pin Signal Pin Signal 1 Ground 9 Positive AUI Differential Receive 2 Negative AUI Differential Collision 10 +12V 3 Positive AUI Differential Collision 11 Ground 4 Negative AUI Differential Transmit 12 Ground 5 Positive AUI Differential Transmit 13 Unused 6 Ground 14 Unu
Parallel Interface Connector and Icon Pin Signal Pin Signal 1 Strobe 10 Acknowledge 2 Data Bit 0 11 Busy 3 Data Bit 1 12 Paper End 4 Data Bit 2 13 Select 5 Data Bit 3 14 Auto Linefeed 6 Data Bit 4 15 Error 7 Data Bit 5 16 Initialize Printer 8 Data Bit 6 17 Select IN 9 Data Bit 7 18– 25 Signal Ground Serial Interface, Powered and Non-Powered Connector and Icon Pin Signal 1 Carrier Detect (12V if powered) 2 Receive Data 3 Transmit Data 4 Data Terminal Ready
Diskette Drive Power Connector and Icon 4 1 Pin Signal 1 +5 VDC 2 Ground 3 Ground 4 Reserved (+12 Volts) Pin Signal 1 (Tip) Audio_left 2 (Ring) Audio_Right 3 (Shield) Ground Pin Signal 1 (Tip) Audio_left 2 (Ring) Power_Right 3 (Shield) Ground Pin Signal 1 (Tip) Audio_In_Left 2 (Ring) Audio_In_Right 3 (Shield) Ground Pin Signal 1 (Tip) Audio_Out_Left 2 (Ring) Audio_Out_Right 3 (Shield) Ground Microphone Connector and Icon (1/8” miniphone) 1 2 3 Headphone Connect
External Infrared Transceiver Connector and Icon Pin Signal 1 Transmit 2 Receive 3 Ground 4 5V 5 Mode 6 Not Used 7 Not Used 8 Not Used Monitor Connector and Icon ENWW Pin Signal Pin Signal 1 Red Analog 9 +5V (fused) 2 Green Analog 10 Ground 3 Blue Analog 11 Not used 4 Not used 12 DDC Serial Data 5 Ground 13 Horizontal Sync 6 Ground 14 Vertical Sync 7 Ground 15 DDC Serial Clock 8 Ground External Infrared Transceiver 73
Diskette Drive Standard Data Cable Connector 2 34 1 33 Pin Signal Pin Signal Pin Signal 1 Ground 13 Ground 25 Ground 2 Low density 14 Reserved 26 Track 00 3 Key 15 Ground 27 Ground 4 Media — ID 16 Motor On 28 Write Protect 5 Ground 17 Ground 29 Ground 6 No Signal 18 Direction In 30 Read Data 7 Ground 19 Ground 31 Ground 8 Index 20 Step 32 Side 1 Select 9 Ground 21 Ground 33 Ground 10 Reserved 22 Write data 34 Disk Change 11 Ground 23
24-Pin MicroFit Power Connector 24 13 12 1 Pin Signal Pin Signal Pin Signal Pin Signal 1 +5 Vaux 7 PWRGD 13 +12V 19 GND 2 GND 8 +3.3V 14 +5V Sense 20 +3.3V 3 +5V 9 +3.3V 15 GND 21 Sense 4 +5V 10 Tach 16 +5V 22 +3.3V 5 PS_ON 11 GND 17 +5V 23 +3.3V 6 GND 12 Fan-CMD 18 +3.
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 Ground P2 V 3.3 P3 V 3.
52 PERp8 57 PERn9 62 GND 67 GND 72 PERp13 53 PERN8 58 GND 63 GND 68 PERp12 73 PERn13 54 GND 59 GND 64 PERp11 69 PERn12 74 GND 55 GND 60 PERp10 65 PERn11 70 GND 75 GND 76 PERp14 81 PERn15 77 PERn14 82 GND 78 GND 79 GND 80 PERp15 Pin B information is on the next page NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 PCI Express uses pins 1-8 PCI Express x1, x4, x8, and x16 PCI Express Connector Pin B E
51 PETn8 56 GND 61 GND 66 PETp12 71 PETn13 52 GND 57 GND 62 PETp11 67 PETn12 72 GND 53 GND 58 PETp10 63 PETn11 68 GND 73 GND 54 PETp9 59 PETn10 64 GND 69 GND 74 PETp14 55 PETn9 60 GND 65 GND 70 PETp13 75 PETn14 76 GND 81 PRSNT2# 77 GND 82 RSVD 78 PETp15 79 PETn15 80 GND Pin B information is on the next page NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 PCI Express uses pins 1-8 DVI Connec
12 ENWW T.M.D.S. Data3– 24 T.M.D.S.
80 Appendix A Connector Pin Assignments ENWW
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.
82 Country Accrediting Agency Country Accrediting Agency Australia (1) EANSW Italy (1) IMQ Austria (1) OVE Japan (3) METI Belgium (1) CEBC Norway (1) NEMKO Canada (2) CSA Sweden (1) SEMKO Denmark (1) DEMKO Switzerland (1) SEV Finland (1) SETI United Kingdom (1) BSI France (1) UTE United States (2) UL Germany (1) VDE 1. The flexible cord must be Type HO5VV-F, 3-conductor, 0.75mm2 conductor size.
C Troubleshooting Safety and Comfort WARNING! Misuse of the computer or failure to establish a safe and comfortable work environment may result in discomfort or serious injury. Refer to the Safety & Comfort Guide on the Documentation and Diagnostics CD and available on the Web site at http://www.hp.com/ ergo for more information on choosing a workspace and creating a safe and comfortable work environment.
● If you have installed an operating system other than the factory-installed operating system, check to be sure that it is supported on the system. ● If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed and a single monitor, the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter. During boot, the other monitor connectors are disabled and if the monitor is connected into these ports, the monitor will not function.
Solving General Problems You may be able to easily resolve the minor problems described in this section. Computer will not turn on. Cause Solution Cables to the external power source are unplugged. Ensure that cables connecting the computer to the external power source are plugged in properly and the wall outlet is active. Voltage selector switch on rear of computer chassis (some models) not switched to correct line voltage (115V or 230V). Select the proper AC voltage using the selector switch.
Computer date and time display is incorrect. Solution Cause NOTE: Connecting the computer to a live AC outlet prolongs the life of the RTC battery. Cursor will not move using the arrow keys on the keypad. Cause Solution The Num Lock key may be on. Press the Num Lock key. The Num Lock light should not be on if you want to use the arrow keys. The Num Lock key can be disabled (or enabled) in Computer Setup. Poor performance is experienced. Cause Solution Processor is hot. 1.
Poor performance is experienced. Cause Solution Some software applications, especially games, are stressful on the graphics subsystem 1. Lower the display resolution for the current application or consult the documentation that came with the application for suggestions on how to improve performance by adjusting parameters in the application. 2. Add more memory. 3. Upgrade the graphics solution. Cause unknown. Restart the computer. Blank screen (no video).
Solving Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, the Windows operating system 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.
Interpreting Diagnostic Lights This section covers the front panel LED codes that may occur before or during POST that do not necessarily have an error code or text message associated with them. NOTE: If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on the front panel of the computer and refer to the following table to determine the front panel LED codes. Recommended actions in the following table are listed in the order in which they should be performed.
Activity Possible Cause Recommended Action Green Power LED flashes six times, once every second, followed by a two second pause. Pre-video graphics error. For systems with a graphics card: 1. Reseat the graphics card. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board. Green Power LED flashes eight times, once every second, followed by a two second pause. Invalid ROM based on bad checksum.
Index Symbols/Numerics 24–pin MicroFit power pin assignments 75 24–pin power pin assignments 74 4–pin power pin assignments 75 5.25 drive bezel blank 40 6–pin power pin assignments 75 A access panel, removal and replacement 38 adding devices 1 B Backup and Recovery Manager 2 battery disposal 35 removal and replacement 63 bezel blank, 5.
I infrared (IR) transceiver, enternal, pin assignments 73 Insight Diagnostics 13 internal temperature of computer 24 Internet addresses.
W Web sites BIOS download 21 ROM Flash 21 software support 22 ENWW Index 93
94 Index ENWW
