Maintenance & Service Guide HP Compaq 8200 Elite All-in-One Business PC
© Copyright 2011, 2013 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
Table of contents 1 Product Features ............................................................................................................................................ 1 Overview .............................................................................................................................................. 1 Front Components ................................................................................................................................ 3 Side Components .............
5 Identifying the Chassis, Routine Care, and Disassembly Preparation .................................................... 22 Chassis Designation ........................................................................................................................... 22 All-in One ........................................................................................................................... 22 Electrostatic Discharge Information ..................................................................
Heat Sink (Thermal Module) .............................................................................................................. 59 Processor ........................................................................................................................................... 61 Fan Assembly ..................................................................................................................................... 63 Display Cable ......................................................
Appendix D Connector Pin Assignments .................................................................................................... 132 Ethernet BNC ................................................................................................................................... 132 USB .................................................................................................................................................. 132 Microphone .......................................................
1 Product Features Overview Figure 1-1 HP Compaq 8200 Elite All-in-One Business PC The HP Compaq 8200 Elite All-In One Business PC offers the following features: ● Integrated All-in-One form factor ● 23-inch diagonal widescreen, full HD, LED, anti-glare display ● Adjustable tilt ● Second generation Intel® Core™ i processors and Intel Pentium processors ● Intel Q67 chipset ● Windows 7 Professional 32- or 64-bit, FreeDOS, or FreeLnx operating system ● Integrated Intel HD Graphics ● Integrate
2 ● Up to 1-TB hard drive, 320-GB Self Encrypting Drive, or 160-GB solid state drive ● HP Blu-ray Combo Drive ● 6-in-1 Media Card Reader ● 6 USB ports ● 150W, 90% efficient external, active PFC power adapter ● 1.3-MP webcam, microphone, and stereo speakers ● HP 802.
Front Components Figure 1-2 Front Components Table 1-1 Front Components Component Component (1) Webcam (4) Power button and LED (2) Single microphone array (5) High-performance stereo speakers (3) 23-inch diagonal 16:9 widescreen LED-backlit full HD LCD display Front Components 3
Side Components Figure 1-3 Side Components Table 1-2 Side Components 4 Component Component (1) HP 6-in-1 Media Card Reader (6) Tray-load optical drive (2) (2) USB 2.
Rear Components Figure 1-4 Rear Components Table 1-3 Rear Components Component Component (1) Drive access panel (7) Security lock slot (2) Center access panel (8) Power connector with LED indicator (3) Memory access panel (9) RJ-45 Gigabit Ethernet port (4) Optical drive location (10) Stereo audio line out (5) Hard drive location (11) (4) USB 2.
Adjusting Tilt Tilt the computer forward up to 5 degrees or backward up to 20 degrees to set it to a comfortable eye level.
2 Installing and Customizing the Software If your computer was not shipped with a Microsoft operating system, some portions of this documentation do not apply. Additional information is available in online help after you install the operating system. NOTE: If the computer was shipped with Windows 7 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.
3. Select the All Programs menu. 4. Click on the Windows Update link. In Windows 7, the Windows Update screen appears. Click view available updates and make sure all critical updates are selected. Click the Install button and follow the instructions on the screen. It is recommended that you install all of the critical updates and service packs. 5. After the updates have been installed, Windows will prompt you to reboot the machine.
3 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, optical drives, or USB flash media devices.
● Solve system configuration errors detected but not automatically fixed during the Power-On SelfTest (POST). ● Replicate the system setup by saving system configuration information on a USB flash drive and restoring it on one or more computers. ● Execute self-tests on a specified ATA hard drive (when supported by drive). ● Enable or disable DriveLock security (when supported by drive).
Computer Setup—File NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Computer Setup—Storage NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 3-2 Computer Setup—Storage Option Description Device Configuration Lists all installed BIOS-controlled storage devices. When a device is selected, detailed information and options are displayed. The following options may be presented: Hard Disk: Size, model, firmware, serial number, connector color, SMART, translation mode.
Table 3-2 Computer Setup—Storage (continued) DPS Self-Test Allows you to execute self-tests on ATA hard drives capable of performing the Drive Protection System (DPS) self-tests. NOTE: This selection will only appear when at least one drive capable of performing the DPS self-tests is attached to the system.
Computer Setup—Security NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 3-3 Computer Setup—Security Option Description Setup Password Allows you to set and enable a setup (administrator) password. NOTE: If the setup password is set, it is required to change Computer Setup options, flash the ROM, and make changes to certain plug and play settings under Windows. See the Desktop Management Guide for more information.
Table 3-3 Computer Setup—Security (continued) ● ◦ USB Port 3 ◦ USB Port 4 internal USB Ports ◦ USB Port 1 ◦ USB Port 2 ◦ USB Port 3 ◦ USB Port 10 Slot Security Allows you to disable or enable the PCI Express x1 slot. Default is enable. Network 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 be either a PCI Express expansion card or embedded on the system board.
Table 3-3 Computer Setup—Security (continued) System Security (some models: these options are hardware dependent) Data Execution Prevention (some models) (enable/disable) - Helps prevent operating system security breaches. Default is enabled. PAVP (Models with Blu-ray drives) (disabled/min/max) - PAVP enables the Protected Audio Video Path in the Chipset. This may allow viewing of some protected high definition content that would otherwise be prohibited from playback.
Computer Setup—Power NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 3-4 Computer Setup—Power Option Description OS Power Management ● Runtime Power Management— Enable/Disable. Allows certain operating systems to reduce processor voltage and frequency when the current software load does not require the full capabilities of the processor. Default is enabled. ● Idle Power Savings—Extended/Normal.
Computer Setup—Advanced NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 3-5 Computer Setup—Advanced Option Heading Power-On Options Allows you to set: ● POST mode (QuickBoot, Clear Memory, FullBoot, or FullBoot Every x Days). ◦ QuickBoot (default) = Do not clear memory or perform a memory test. ◦ FullBoot = Memory test (count) on cold boot. Clears memory on all boots. ◦ Clear Memory = No memory count on cold boot. Clears memory on all boots.
Table 3-5 Computer Setup—Advanced (continued) Device Options AMT Configuration Allows you to set: ● Turbo Mode (enable/disable). Allows you to enable and disable the Intel Turbo Mode feature, which allows one core of the system to run at a higher than standard frequency and power if other cores are idle. Default is enabled. ● Num Lock State at Power-On (off/on). Default is on. ● LVDS Panel Select. Auto-select, LG, Samsung. ● Internal Speaker (some models) (does not affect external speakers).
4 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.
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. 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.
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.
● Always be properly grounded when touching a sensitive component or assembly. ● 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.
● Conductive bins and other assembly or soldering aids ● 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 ● Transparen
Routine Care General Cleaning Safety Precautions 1. Never use solvents or flammable solutions to clean the computer. 2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component. 3. Always unplug the computer when cleaning with liquids or damp cloths. 4. Always unplug the computer before cleaning the keyboard, mouse, or air vents. 5. Disconnect the keyboard before cleaning it. 6.
● If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool is available through many electronic supply outlets. CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys are improperly removed or installed, the keyboard may not function properly. ● Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed out. Be careful not to wipe away lubricants necessary for proper key functions.
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.
6 Removal and Replacement Procedures All-in One (AIO) Chassis The following sections provide information about disassembling various components of the computer. Preparing to Disassemble the Computer To avoid injury and equipment damage, always complete the following steps in order, when opening the HP Pro All-in-One. 1. Remove all media (CD, DVD, etc.) from the computer. 2. Shut down the computer. 3.
Synchronizing the Optional Wireless Keyboard or Mouse The optional wireless keyboard and mouse are easy to set up. Just remove the battery tabs on both the keyboard and the mouse. Also, make sure the Power switch on the bottom of the mouse is in the On position (the keyboard does not have a Power switch). Then, turn on the computer. If you have trouble using the keyboard and mouse, manually synchronize them as described below.
6. Press the Connect button on the bottom of the keyboard (3) for five seconds. The blue activity LED from the wireless receiver illuminates when the synchronization command has been received and turns off when synchronization is complete. Figure 6-2 Synchronizing the wireless keyboard and mouse NOTE: If the procedure does not work, remove and then re-insert the wireless keyboard and mouse receiver from the back of the computer and then synchronize the keyboard and mouse again.
Center Access Panel The center access panel is located above the stand. You must remove it to remove the drive cover and memory cover. Figure 6-3 Center access panel location To remove the center access panel: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Pull outward on the panel at the slot on the top edge of the panel. Figure 6-4 Removing the center access panel To replace the center access panel, reverse the removal procedures.
Stand The stand is secured with three Torx screws. You must remove the center access panel to remove the stand. To remove the stand: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the three silver Torx screws (1) that secure the stand to the computer. 4. Rotate the stand upward (2), and then lift the stand off the computer (3).
Memory Access Panel The memory access panel is located on the rear, right side of the computer (viewed from behind). You must remove it to access the memory modules and to remove the main rear cover. Figure 6-6 Memory access panel location To remove the memory access panel: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3.
Drive Access Panel The drive access panel is located on the rear, left side of the computer (viewed from behind). You must remove it to access the hard drive and optical drive and to remove the main rear cover. Figure 6-8 Drive access panel location To remove the drive access panel: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32).
3. Push downward on the two tabs on the inside edge of the panel (1) and slide the panel off the computer (2). Figure 6-9 Removing the drive access panel To replace the drive access panel, reverse the removal procedures.
Optical Drive The optical drive is located under the drive access panel on the left side of the computer (viewed from behind). It is secured with one Torx screw. Figure 6-10 Optical drive location To remove the optical drive: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the drive access panel (see Drive Access Panel on page 35). 4.
5. Insert a flat-bladed screwdriver or finger to push the bracket on the rear side of the optical drive(2) to disengage the drive from the connector, and then slide the drive out of the computer (3). Figure 6-11 Removing the optical drive 6. If you need to remove the drive bracket from the drive, remove the two screws (1) that secure the bracket to the drive, and then remove the bracket from the drive (2). NOTE: Optical drive spare part kits do not include replacement brackets.
Hard Drive The hard drive is located under the drive access panel on the left side of the computer (viewed from behind). The drive is secured with one captive Torx screw and is housed in a removable cage. Figure 6-13 Hard drive location 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the drive access panel (see Drive Access Panel on page 35). 4.
5. Grasp the handle on top of the hard drive cage (1) and slide the cage toward the outer edge of the computer, then lift the cage out of the computer (2). Figure 6-15 Removing the hard drive cage 6. Remove the four mounting screws that secure the drive to the cage. Do not remove the blue rubber grommets behind each screw. They must stay attached to the cage when installing a new hard drive. NOTE: Inspect the four blue rubber grommets in case some of them are damaged or lost.
7. Slide the hard drive out of the cage. Figure 6-17 Removing the hard drive from the cage To replace the hard drive, reverse the removal procedures.
Memory Memory modules are located on the right side of the computer (viewed from behind) under the memory cover. The computer has two memory slots. Figure 6-18 Memory module location The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3SDRAM) small outline dual inline memory modules (SODIMMs). The memory sockets on the system board can be populated with up to two industry-standard SODIMMs. These memory sockets are populated with at least one preinstalled SODIMM.
NOTE: The system will not operate properly if you install unsupported SODIMMs. There are two memory sockets on the system board located behind the memory access panel. To remove or install memory modules: To remove a memory module: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4.
6. To install a memory module, slide the SODIMM into the socket at approximately a 30° angle (1) then press the SODIMM down (2) so that the latches lock it in place. Figure 6-21 Installing a Memory Module NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket. The computer automatically recognizes the additional memory when you turn on the computer.
Top Panel The top panel is secured with two Torx screws. Removing it allows access to the webcam and allows you to remove the main rear cover. Figure 6-22 Top panel location To remove the top panel: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4.
Webcam Module The webcam module is located at the top of the computer beneath the top panel. It is secured with two silver Phillips screws and has one connector. Figure 6-24 Webcam module location To remove the webcam module: 46 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4.
8. Remove the webcam from the computer (3). Figure 6-25 Removing the webcam module To install a webcam module, reverse the removal procedures.
Rear Cover The rear cover is secured with six Torx screws. You must pry it off at the seams around the edges of the computer. To remove the rear cover: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4. Remove the drive access panel (see Drive Access Panel on page 35). 5.
System Board Cover The system board cover protects the system board. It is secured with six Torx screws. Figure 6-27 System board cover location To remove the system board cover: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4. Remove the drive access panel (see Drive Access Panel on page 35). 5.
9. Remove the six black Torx screws that secure the cover to the computer. Figure 6-28 Removing the system board cover screws 10. Lift the cover from the computer. Figure 6-29 Removing the system board cover To install the system board cover, reverse the removal procedures.
Sidekey Board The sidekey board is located on the bottom left side of the computer (viewed from behind). It is secured with two Torx screws and has one connector. The associated cable connects to the front power switch assembly. To remove it, you must remove the stand bracket, disassembly of which is shown later in this document at Stand Bracket on page 71. Figure 6-30 Sidekey board location To remove the sidekey board: 1.
12. Rotate the bottom of the board upward (3), and then remove the board from the computer. Figure 6-31 Removing the sidekey board 13. If you need to remove the cable: a. Remove the stand bracket by removing the four black Torx screws that secure it to the computer (1), and then lifting the bracket from the computer (2). Figure 6-32 Removing the stand bracket b. 52 Disconnect the cable from the PB/LED connector on the system board. The following image shows the cable highlighted by arrows.
c. The cable includes the power switch assembly (shown by callout (1) in the following image). The cable routes beneath the stand bracket (not shown in the following image) to the PB/LED system board connector (shown by callout (2) in the following image). Figure 6-33 Sidekey cable assembly d. Lift the power switch assembly up and off the front bezel. Figure 6-34 Removing the sidekey cable power switch component e. Lift the cable out of the computer.
Converter Board The converter board is located on the left side of the computer. It is secured with two Torx screws and has two connectors. Figure 6-35 Converter board location To remove the converter board: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4.
11. Lift the converter board from the computer (3). Figure 6-36 Removing the converter board Be sure to correctly position the jumpers on the converter board for the installed display panel, as follows: CAUTION: Incorrect jumper placement can result in damage to the converter board. ● LG panel: pins 8 & 7 ● Samsung panel: pins 6 & 5 To install the converter board, reverse the removal procedures.
Speakers The speakers are located at the bottom of the computer. Two separate speakers are each secured by two Torx screws and have separate cables and system board connectors. Figure 6-37 Speaker location To remove the speakers: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4.
12. Remove the speakers from the computer (3). Figure 6-38 Removing the speakers To install the speakers, reverse the removal procedures. WLAN Module The WLAN module is located on the right side of the system board. The module is secured with two Phillips screws and has two connected antennas. Figure 6-39 WLAN module location To remove the WLAN module: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2.
7. Remove the top panel (see Top Panel on page 45). 8. Remove the rear cover (see Rear Cover on page 48). 9. Remove the system board cover (see System Board Cover on page 49). 10. Disconnect the antenna cables from the module (1). 11. Remove the two Phillips screws (2) that secure the module to the computer. 12. Lift the module to a 45-degree angle (3), and then pull it away to remove it from the socket. Figure 6-40 Removing the WLAN module To install the WLAN module, reverse the removal procedures.
Heat Sink (Thermal Module) The heat sink is secured with six Torx screws. You do not have to remove the fans to remove the heat sink. Figure 6-42 Heat sink location To remove the heat sink: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4. Remove the drive access panel (see Drive Access Panel on page 35). 5.
12. Lift the heat sink from the computer (6). CAUTION: To reduce a degradation in thermal performance, be sure not to touch the thermal grease on the surface of the processor or the heat sink. Figure 6-43 Removing the heat sink To replace the heat sink, reverse the removal procedures.
Processor 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4. Remove the drive access panel (see Drive Access Panel on page 35). 5. Remove the stand (see Stand on page 33). 6. Remove the optical drive (see Optical Drive on page 37). 7. Remove the top panel (see Top Panel on page 45). 8.
To install a new processor: 1. Place the processor in its socket and close the retainer. Make sure the slot in the processor fits into the post on the socket. 2. Secure the locking lever. If reusing the existing heat sink, go to step 3. If using a new heat sink, go to step 6. 3. If reusing the existing fan sink, clean the bottom of the fan sink with the alcohol pad provided in the spares kit.
Fan Assembly The fan assembly consists of two fans located near the top of the computer below the heat sink. The assembly is secured with four Torx screws (two per fan) and connects to the system board using two separate connectors. You do not have to remove the heat sink to remove the fans. Figure 6-45 Fan assembly location To remove the fan assembly: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2.
12. Lift the fan assembly from the computer (3). Figure 6-46 Removing the fan assembly To install the fan assembly, reverse the removal procedures.
Display Cable The main display cable is located just above the system board. The heat sink covers the connector on the display panel. Figure 6-47 Display cable location To remove the display cable: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4.
12. Disconnect the cable from the display panel by pressing in the latches on the side of the cable (2) and pulling it from the connector (3). Figure 6-48 Removing the display cable 13. Remove the display cable from the computer. To install the display cable, reverse the removal procedures.
System Board The system board is located on the right side of the computer (viewed from the rear) under the system board cover. It is secured with seven Torx screws. Figure 6-49 System board location To remove the system board: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3. Remove the memory access panel (see Memory Access Panel on page 34). 4.
15. Remove the seven silver Torx screws (circled in image) that secure the system board to the computer. Figure 6-50 Removing the system board 16. Lift the system board straight up and out of the computer. NOTE: Before returning the defective system board, remove the CPU cover from the replacement system board and install it on the defective system board. To install the system board, reverse the removal procedures.
4. Go to Security > System ID’s. 5. If necessary, press Ctrl+A to initiate edit mode. 6. Edit the fields listed. If the feature byte has data or is not editable, then it was not cleared and cannot be edited. System ID Setup Page Setup Field Name Comment Label Product Name Enter the Model name/number or marketing name. Flexbuild Serial Number Enter the Serial Number of Unit. Support SKU Number Enter the SKU or Product Number including Localization Code.
70 Chapter 6 Removal and Replacement Procedures All-in One (AIO) Chassis
Stand Bracket The stand bracket is located near the middle of the computer, below the fans. Remove the bracket to gain access to the drive cables and sidekey board cable assembly. The bracket is secured with four Torx screws. Figure 6-51 Stand bracket location To remove the stand bracket: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2. Remove the center access panel (see Center Access Panel on page 32). 3.
11. Lift the bracket from the computer (2). Figure 6-52 Removing the stand bracket To install the stand bracket, reverse the removal procedures.
Hard Drive and Optical Drive Cables and Connectors The hard drive and optical drive connectors are located near the middle of the computer, below the fans, and under the bracket that secures the stand. Each connector is secured with two Torx screws and has two cables that connect to the system board. The optical drive connector (1) is positioned above the hard drive connector (2). The optical drive connector cables are longer than the hard drive connector cables.
14. Disconnect the hard drive cables (4) or the optical drive cables (5) from the system board. NOTE: Be careful not to damage the cable when disconnecting it from the board. Do not pull on the wires. 15. Remove the connector from the computer. Figure 6-54 Removing the hard drive or optical drive connectors To install the hard drive or optical drive connector, reverse the removal procedures.
Front Bezel The front bezel is located on the front of the computer and is secured to the main system bracket with eight Torx screws and eight tabs. You must remove the main system bracket from the bezel to gain access to the bezel and to the display panel. The display panel sits between the main bracket and the front bezel. You can remove the front bezel without disassembling many of the computer's components. Most components can remain attached to the display panel bracket.
17. Lift the main system bracket assembly off the front bezel (3). The display panel sits between the main bracket assembly and the front bezel. Figure 6-55 Removing the main bracket assembly from the front bezel 18. Lift the display panel from the front bezel by pressing the four tabs (two on each side) to release the panel from the bezel, and then lifting the panel off the bezel. Figure 6-56 Removing the display panel from the front bezel To install the front bezel, reverse the removal procedures.
The display panel is secured to the display bracket with four Torx screws, as follows: ● LG - two screws on top, two screws on the bottom. Note that the LG panel installs into a large frame. ● Samsung - two screws on each side. Note that the Samsung panel mounts to two smaller brackets on the left and right sides of the panel. To remove the display panel: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 29). 2.
4. Remove the memory module (see Memory on page 42). 5. Remove the drive access panel (see Drive Access Panel on page 35). 6. Remove the stand (see Stand on page 33). 7. Remove the optical drive (see Optical Drive on page 37). 8. Remove the top panel (see Top Panel on page 45). 9. Remove the rear cover (see Rear Cover on page 48). 10. Remove the system board cover (see System Board Cover on page 49). 11. Remove the power switch assembly cable. You do not have to remove the remaining cables. 12.
15. If removing the LG panel, lift the display panel from the frame. If removing the Samsung panel, remove the brackets from the display panel. Figure 6-58 Removing the display panel – LG panel Figure 6-59 Removing the display panel – Samsung panel 16. Be sure to correctly position the jumpers on the converter board for the installed display panel, as follows: CAUTION: Incorrect jumper placement can result in damage to the converter board.
To install a display panel, reverse the removal procedures. Installation notes: The following images show how the cables and brackets should be installed on Samsung panels. Each bracket is secured to the side of the panel with two Torx screws. Be sure to install the display cable and backlight cable to the display panel.
Figure 6-62 Samsung backlight cable and right panel bracket The LG panel installs into a large frame, and two Torx screws secure the display panel to both the top and the bottom sides of the frame. When installing the LG panel into the frame, be sure to insert the cables through the holes in the frame. Figure 6-63 LG panel cables Connect the display cable and the backlight cable into the display panel. Cable connectors are in similar locations for the LG and Samsnug panels.
Figure 6-64 LG panel install screws 82 Chapter 6 Removal and Replacement Procedures All-in One (AIO) Chassis
A Password Security and Resetting CMOS This computer supports security password features, which can be established through the Computer Setup Utilities menu. This computer supports two security password features that are established through the Computer Setup Utilities menu: setup password and power-on password. When you establish only a setup password, any user can access all the information on the computer except Computer Setup.
Establishing a Setup or Power-on Password To establish the power-on or setup password features, complete the following steps: 1. Turn on or restart the computer. 2. As soon as the computer turns on, press the Esc key while “Press the ESC key for Startup Menu” message is displayed at the bottom of the screen. 3. Press the F10 key to enter Computer Setup. 4. To establish Setup password, select Security > Setup Password and follow the instructions.
Resetting a Setup or Power-on Password To disable the power-on or setup password features, or to clear the power-on or setup passwords, complete the following steps: 1. Shut down the operating system properly, then turn off the computer and any external devices, and disconnect the power cord from the power outlet. 2. With the power cord disconnected, press the power button again to drain the system of any residual power.
Clearing and Resetting the CMOS The computer’s configuration memory (CMOS) stores information about the computer’s configuration. The CMOS button resets CMOS but does not clear the power-on and setup passwords. Clearing CMOS will clear the Active Management Technology (AMT) settings in the Management Engine BIOS Extension (MEBx), including the password. The password will default to “admin” and will need to be reset. The AMT settings will also need to be reset. To access the MEBx, press Ctrl+P during POST.
4. Locate, press, and hold the CMOS button in for five seconds. NOTE: Make sure you have disconnected the AC power cord from the wall outlet. The CMOS button will not clear CMOS if the power cord is connected. Figure A-1 CMOS button NOTE: For assistance locating the CMOS button and other system board components, see the Illustrated Parts & Service Map (IPSM) for that particular system. 5. Replace the computer cover or access panel. 6. Reconnect the external devices. 7.
B POST Error Messages This appendix lists the error codes, error messages, and the various indicator light and audible sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the problem, and steps you can take to resolve the error condition. POST Message Disabled suppresses most system messages during POST, such as memory count and non-error text messages. If a POST error occurs, the screen will display the error message.
POST Numeric Codes and Text Messages This section covers those POST errors that have numeric codes associated with them. The section also includes some text messages that may be encountered during POST. NOTE: The computer will beep once after a POST text message is displayed on the screen. Table B-1 Numeric Codes and Text Messages Control panel message Description Recommended action 101-Option ROM Checksum Error System ROM or expansion board option ROM checksum. 1. Verify the correct ROM. 2.
Table B-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 164-MemorySize Error Memory amount has changed since the last boot (memory added or removed). Press the F1 key to save the memory changes. 164-MemorySize Error Memory configuration incorrect. 1. Run Computer Setup or Windows utilities. 2. Make sure the memory module(s) are installed properly. 3. If third-party memory has been added, test using HP-only memory. 4.
Table B-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 304-Keyboard or System Unit Error Keyboard failure. 1. Reconnect the keyboard with computer turned off. 2. Ensure that none of the keys are depressed. 3. Replace the keyboard. 4. Replace the system board. 510-Flash Screen Image Corrupted Flash Screen image has errors. Reflash the system ROM with the latest BIOS image.
Table B-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 1805-Ambient Temperature Previously Over Limit This system was placed in a low power state to prevent damage due to excessive environmental temperature.
Table B-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 2202-PMM Deallocation Error during MEBx cleanup Memory error during POST execution of the Management Engine (ME) BIOS Extensions option ROM. 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.
Table B-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 2220-USB Key Provisioning file has mismatch version Provisioning file contained on the USB key is not a valid version for the current ME firmware. 1. Reboot the computer. 2. If the error persists and system BIOS has been recently updated, restore previous system BIOS version. Otherwise, update the ME firmware version. 3. If the error still persists, replace the system board.
Table B-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action Network Server Mode Active and No Keyboard Attached Keyboard failure while Network Server Mode enabled. 1. Reconnect keyboard with computer turned off. 2. Check connector for bent or missing pins. 3. Ensure that none of the keys are depressed. 4. Replace keyboard. Parity Check 2 Parity RAM failure or a PCI/PCIe device is asserting a SERR#. Run Computer Setup and Diagnostic utilities.
Interpreting 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. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board.
Table B-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action 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. 4 Power failure (power supply is overloaded). 1. Open the hood and ensure the 4 or 6-wire power supply cable is seated into the connector on the system board. 2.
Table B-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity 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. Unplug the AC power cord from the computer, wait 30 seconds, then plug the power cord back in to the computer. 2. Replace the system board. 3. Replace the processor.
C Troubleshooting Without Diagnostics This chapter provides information on how to identify and correct minor problems, such as diskette drive, hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions.
Solving General Problems You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board.
There is no sound or sound volume is too low. Cause Solution System volume may be set low or muted. 1. Check the F10 BIOS settings to make sure the internal system speaker is not muted (this setting does not affect the external speakers). 2. Make sure the external speakers are properly connected and powered on and that the speakers' volume control is set correctly. 3. Use the system volume control available in the operating system to make sure the speakers are not muted or to increase the volume.
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 stop after fifth iteration but LEDs continue flashing). Cause Solution Processor thermal protection activated: 1. Ensure that the computer air vents are not blocked and the processor cooling fan is running. 2. Open hood, press power button, and see if the processor fan spins.
Solving Power Problems Common causes and solutions for power problems are listed in the following table. Table C-2 Solving Power Problems 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 stop after fifth iteration but LEDs continue flashing.) Cause Solution Processor thermal protection activated: 1.
Solving Diskette Problems Common causes and solutions for diskette problems are listed in the following table. NOTE: The computer does not support internal diskette drives. Only USB diskette drives are supported. NOTE: You may need to reconfigure the computer when you add or remove hardware, such as an additional diskette drive. See Solving Hardware Installation Problems on page 119 for instructions. Table C-3 Solving Diskette Problems Diskette drive light stays on. Cause Solution Diskette is damaged.
Cannot format diskette. Cause Solution Invalid media reported. When formatting a disk in MS-DOS, you may need to specify diskette capacity. For example, to format a 1.44-MB diskette, type the following command at the MS-DOS prompt: FORMAT A: /F:1440 Disk may be write-protected. Open the locking device on the diskette. Legacy diskette writes are disabled in Computer Setup. Enter Computer Setup and enable Legacy Diskette Write in Storage > Storage Options.
Table C-3 Solving Diskette Problems (continued) Cannot Boot to Diskette. Cause Solution Diskette boot has been disabled in Computer Setup. 1. Run Computer Setup and enable USB device in Storage > Boot Order. 2. Run Computer Setup and enable USB device in Storage > Storage Options > Removable Media Boot. NOTE: Both steps should be used as the Removable Media Boot function in Computer Setup overrides the Boot Order enable command. Network server mode is enabled in Computer Setup.
Table C-4 Solving Hard Drive Problems (continued) Drive not found (identified). Cause Solution The system may not have automatically recognized a newly installed device. See reconfiguration directions in the Solving Hardware Installation Problems on page 119 section. If the system still does not recognize the new device, check to see if the device is listed within Computer Setup. If it is listed, the probable cause is a driver problem. If it is not listed, the probable cause is a hardware problem.
Computer will not boot from hard drive. Cause Solution The device is attached to a SATA port that has been hidden in Computer Setup. Run the Computer Setup utility and ensure Device Available is selected for the device's SATA port in Security > Device Security. Boot order is not correct. Run the Computer Setup utility and change boot sequence in Storage > Boot Order. Hard Drive's “Emulation Type” is set to “None.
Solving Media Card Reader Problems Table C-5 Solving Media Card Reader Problems A write-protected or locked error occurs when attempting to write to the media card. Cause Solution Media card is locked. Locking the media card is a safety feature that prevents writing to and deleting from an SD/ Memory Stick/PRO card. If using an SD card, make sure that the lock tab located on the right of the SD card is not in the locked position.
After inserting a media card in the reader, the computer attempts to boot from the media card. Cause Solution The inserted media card has boot capability. If you do not want to boot from the media card, remove it during boot or do not select the option to boot from the inserted media card during the boot process. Solving Display Problems If you encounter display problems, see the documentation that came with the monitor and to the common causes and solutions listed in the following table.
Blank screen and the power LED flashes red six times, once every second, followed by a two second pause, and the computer beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Pre-video graphics error. For systems with a graphics card: 1. Reseat the graphics card. Power on the system. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board.
The picture is broken up, rolls, jitters, or flashes. Cause Solution The monitor connections may be incomplete or the monitor may be incorrectly adjusted. 1. In a two-monitor system or if another monitor is in close proximity, be sure the monitors are not interfering with each other’s electromagnetic field by moving them apart. 2. Fluorescent lights or fans may be too close to the monitor. Monitor needs to be degaussed. Degauss the monitor.
Certain typed symbols do not appear correct. Cause Solution The font you are using does not support that particular symbol. Use the Character Map to locate 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.
Solving Audio Problems If the computer has audio features and you encounter audio problems, see the common causes and solutions listed in the following table. Table C-7 Solving Audio Problems Sound cuts in and out. Cause Solution Processor resources are being used by other open applications. Shut down all open processor-intensive applications. Sound does not come out of the speaker or headphones. Cause Solution Software volume control is turned down or muted.
Table C-7 Solving Audio Problems (continued) Sound does not come out of the speaker or headphones. Cause Solution Some applications can select which audio output device is used. Make sure the application has selected the correct audio device. The operating system controls may be set to use a different audio device as the default output device than what is expected. Set the operating system to use the correct audio device. Sound from headphones is not clear or muffled.
Solving Printer Problems If you encounter printer problems, see the documentation that came with the printer and to the common causes and solutions listed in the following table. Table C-8 Solving Printer Problems Printer will not print. Cause Solution Printer is not turned on and online. Turn the printer on and make sure it is online. The correct printer drivers for the application are not installed. 1. Install the correct printer driver for the application. 2.
Table C-9 Solving Keyboard Problems Keyboard commands and typing are not recognized by the computer. Cause Solution Keyboard connector is not properly connected. 1. Click Start, click the arrow on the lower right corner of the Start menu, then select Shut Down. 2. After the shutdown is complete, reconnect the keyboard to the back of the computer and restart the computer. Program in use has stopped responding to commands. Shut down your computer using the mouse and then restart the computer.
Table C-10 Solving Mouse Problems (continued) Mouse does not respond to movement or is too slow. Cause Solution Mouse may need repair. See the Worldwide Limited Warranty for terms and conditions. Computer is in standby mode. Press the power button to resume from standby mode. CAUTION: When attempting to resume from standby mode, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.
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, Windows 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. In Windows, use the Add Hardware Wizard and follow the instructions that appear on the screen.
Power LED flashes red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Memory is installed incorrectly or is bad. CAUTION: 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. 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module.
Table C-12 Solving Network Problems Wake-on-LAN feature is not functioning. Cause Solution S5 Maximum Power Saving feature is enabled. Disable the S5 Maximum Power Saving option in Computer Setup. Select Power > Hardware Power Management > S5 Maximum Power Saving. S5 Wake on LAN is disabled. : Enable the S5 Wake on LAN option in Computer Setup. Select Advanced > Device Options > S5 Wake on LAN. Wake-on-LAN is not enabled. 1. Select Start > Control Panel. 2.
Diagnostics reports a failure. Cause Solution 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. Ensure that the cable and device at the other end are operating correctly.
New network card will not boot. Cause Solution 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. Cannot connect to network server when attempting Remote System Installation. Cause Solution The network controller is not configured properly.
Out of memory error. Cause Solution Memory configuration may not be set up correctly. Use the Device Manager to check memory configuration. You have run out of memory to run the application. Check the application documentation to determine the memory requirements. Memory count during POST is wrong. Cause Solution The memory modules may not be installed correctly. Check that the memory modules have been installed correctly and that proper modules are used. Integrated graphics may use system memory.
Table C-14 Solving Processor Problems Poor performance is experienced. Cause Solution Processor is hot. 1. Make sure the airflow to the computer is not blocked. 2. Make sure the fans are connected and working properly (some fans only operate when needed). 3. Make sure the processor heat sink is installed properly. Power LED flashes red three times, once every second, followed by a two second pause. Cause Solution Processor is not seated properly or not installed. 1.
Drive not found (identified). Cause Solution Cable could be loose. Check cable connections. The system may not have automatically recognized a newly installed device. See reconfiguration directions in the Solving Hardware Installation Problems on page 119 section. If the system still does not recognize the new device, check to see if the device is listed within Computer Setup. If it is listed, the probable cause is a driver problem. If it is not listed, the probable cause is a hardware problem.
CD-ROM, CD-RW, DVD-ROM, or DVD-R/RW drive cannot read a disc or takes too long to start. Cause Solution Media has been inserted upside down. Re-insert the media with the label facing up. The DVD-ROM drive takes longer to start because it has to determine the type of media played, such as audio or video. Wait at least 30 seconds to let the DVD-ROM drive determine the type of media being played. If the disc still does not start, read the other solutions listed for this topic. CD or DVD disc is dirty.
System will not boot from USB flash drive. Cause Solution Boot order is not correct. Run the Computer Setup utility and change boot sequence in Storage > Boot Order. Removable Media Boot is disabled in the Computer Setup utility. Run the Computer Setup utility and enable booting to removable media in Storage > Storage Options. Ensure USB is enabled in Storage > Boot Order. The computer boots to DOS after making a bootable flash drive. Cause Solution Flash drive is bootable.
Table C-17 Solving Internet Access Problems (continued) Unable to connect to the Internet. Cause Solution IP address is not configured properly. Contact your ISP for the correct IP address. Cookies are corrupted. (A “cookie” is a small piece of information that a Web server can store temporarily with the Web browser. This is useful for having the browser remember some specific information that the Web server can later retrieve.) 1. Select Start > Control Panel. 2. Click Network and Internet. 3.
Solving Software Problems Most software problems occur as a result of the following: ● The application was not installed or configured correctly. ● There is insufficient memory available to run the application. ● There is a conflict between applications. ● Be sure that all the needed device drivers have been installed. ● If you have installed an operating system other than the factory-installed operating system, check to be sure it is supported on the system.
Contacting Customer Support For help and service, contact an authorized reseller or dealer. To locate a reseller or dealer near you, visit http://www.hp.com. NOTE: If you take the computer to an authorized reseller, dealer, or service provider for service, remember to provide the setup and power-on passwords if they are set. Refer to the number listed in the warranty or in the Support Telephone Numbers guide for technical assistance.
D 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.
Headphone Connector and Icon (1/8” miniphone) 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 Line-in Audio Connector and Icon (1/8” miniphone) Line-out Audio Connector and Icon (1/8” miniphone) Headphone 133
E 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.
Country-Specific Requirements Additional requirements specific to a country are shown in parentheses and explained below. 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.
F Specifications All-in One Models Table F-1 Specifications Desktop Dimensions Height 23.00 in 58.4 cm Width 18.58 in 47.2 cm Depth 9.06 in 23.0 cm Approximate Weight 18.7 lb 8.
Index A audible codes 96 audio problems 114 country power cord set requirements 135 Customer Support 131 B battery disposal 28 beep codes 96 booting options Full Boot 88 Quick Boot 88 D diskette problems 104 display cable removing 65 display panel removing 76 drive access panel removing 35 C cable pinouts SATA data 20 cautions AC power 22 cables 28 electrostatic discharge 23 keyboard cleaning 26 keyboard keys 27 CD-ROM or DVD problems 125 center access panel removing 32 cleaning computer 26 mouse 27 sa
mouse cleaning 27 synchronizing wireless 30 mouse problems 116 N network problems 120 numeric error codes 89 O opening the computer 29 operating guidelines 25 optical drive removing 37 optical drive connector removing 73 optical drive problems 125 overheating, prevention 25 P password clearing 83 power-on 83 setup 83 POST error messages 88 power cord set requirements country specific 135 power problems 103 power supply 136 power-on password 83 printer problems 116 problems audio 114 CD-ROM or DVD 125 disket
