hp-support-head-portlet

Actions
Loading...

Welcome to HP Customer Support

hp-contact-secondary-navigation-portlet

Actions
Loading...

hp-share-print-widget-portlet

Actions
Loading...
  • Information
    Information regarding recent vulnerabilities

    HP is aware of the recent vulnerabilities commonly referred to as "Spectre" and "Meltdown". HP has published a security bulletin with patches for these issues and a list of impacted systems. We will continue to update the bulletin as more information becomes available and encourage customers to check the bulletin frequently.

hp-concentra-wrapper-portlet

Actions
Loading...

dc5800 Service Reference Guide - 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.
Serial Number Location
Each computer has a unique serial number and product ID number that are located on the top cover of the computer. Keep these numbers available for use when contacting customer service for assistance.
Figure :
Preparation for Disassembly
See Identifying the Chassis, Routine Care, and Disassembly Preparation for initial safety procedures.
  1. Remove/disengage any security devices that prohibit opening the computer (External Security Devices).
  2. Close any open software applications.
  3. Exit the operating system.
  4. Remove any diskette, compact disc, or media card from the computer.
  5. Turn off the computer and any peripheral devices that are connected to it.
      caution:
    Turn off the computer before disconnecting any cables.
    Regardless of the power-on state, voltage is always present on the system board as long as the system is plugged into an active AC outlet. In some systems the cooling fan is on even when the computer is in the “Standby,” or “Suspend” modes. The power cord should always be disconnected before servicing a unit.
  6. Disconnect the power cord from the electrical outlet and then from the computer.
  7. Disconnect all peripheral device cables from the computer.
  8. Lay the computer down on its side to achieve a safe working position.
      note:
    During disassembly, label each cable as you remove it, noting its position and routing. Keep all screws with the units removed.
  caution:
The screws used in the computer are of different thread sizes and lengths; using the wrong screw in an application may damage the unit.
External Security Devices
The following security devices are used to prevent unauthorized access to the internal components of the computer and/or secure the computer to a fixed object.
Cable Lock
Figure :
Padlock
Figure :
HP Business PC Security Lock
  1. Fasten the security cable by looping it around a stationary object.
  2. Thread the keyboard and mouse cables through the lock.
  3. Screw the lock to the chassis using the screw provided.
  4. Insert the plug end of the security cable into the lock (1) and push the button in (2) to engage the lock. Use the key provided to disengage the lock.
Front Bezel Security
The front bezel can be locked in place by installing a security screw provided by HP.
The security screw is located on the fan duct inside the chassis. To lock the front bezel, remove the security screw from the fan duct (1) and install it through the chassis frame into the front bezel (2).
Computer Access Panel
  1. Prepare the computer for disassembly (Preparation for Disassembly).
      caution:
    Before removing the computer access panel, ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet.
  2. Loosen the captive thumbscrew (1) that secures the access panel to the computer chassis.
  3. Slide the access panel back (2) about 1.3 cm (1/2 inch), then lift it off the unit.
Figure :
To install the access panel, reverse the removal procedure.
Front Bezel
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Press outward on the two latches on the right side of the bezel and the single latch on the left side of the bezel (1) to release the bottom of the bezel, then swing the bottom of the bezel away from the chassis (2) to release the top of the bezel.
    Figure :
To reinstall the front bezel, reverse the removal procedure.
Cable Management
Always follow good cable management practices when working inside the computer.
  • Keep cables away from major heat sources like the heatsink.
  • Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not designed to take excessive pressure on them.
  • Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when the parts are moved.
  • 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.
  • Do not bend any cable sharply. A sharp bend can break the internal wires.
  • Never bend a SATA data cable tighter than a 30 mm (1.18 in) radius.
  • Never crease a SATA data cable.
  • Do not rely on components like the drive cage, power supply, or computer cover to push cables down into the chassis. Always position the cables to lay properly by themselves.
When removing the power supply power cables from the P1 or P3 connectors on the system board, always follow these steps:
  1. Squeeze on the top of the retaining latch attached to the cable end of the connector (1).
  2. Grasp the cable end of the connector and pull it straight up (2).
      caution:
    Always pull the connector - NEVER pull on the cable. Pulling on the cable could damage the cable and result in a failed power supply.
Cable Connections
System board connectors are color-coded to make it easier to find the proper connection.
System Board Connections
System Board Connector, Name, and Connector Color
Description
P1, PWR, black
Power supply, 24-pin
P3, PWRCPU, black
Power supply, 4-pin
P10, FLOPPY, black
Diskette drive
P8, CPU FAN, white
Heatsink fan
P9, CHASSIS FAN, brown or red
Chassis fan
P5, PB/LED, black
Front power button/LED
P24, FRNT USB, Yellow
Front I/O USB cable
P23, FRNT I/O, black
Front I/O audio
P6, SPKR
Internal speaker
P150, MEDIA CARD
Media card reader
P11, REAR FAN, red/maroon
Rear fan
P12, FRONT_AUD, white
Front audio
Power Supply Cable Connections
Power Supply Connector ID
Description
P1
Main power
P3
CPU power
P4
1st Hard drive, SATA0
P5
2nd HDD
P6
PATA/Zip/Media card reader
P8
Diskette drive
P9
1st ODD or 2nd HDD if no ODD present, SATA1
P10
2nd ODD
P11
3rd ODD
Memory
The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs).
The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory support, you can populate the system board with up to 8 GB of memory configured in a high-performing dual channel mode.
For proper system operation, the DDR2-SDRAM DIMMs must be:
  • industry-standard 240-pin
  • unbuffered, PC2-5300 667 MHz-compliant or PC2-6400 800 MHz-compliant
  • 1.8 volt DDR2-SDRAM DIMMs
The DDR2-SDRAM DIMMs must also:
  • support CAS latency 5 DDR2 667 Mhz (5-5-5 timing), CAS latency 5 DDR2 800 Mhz (5-5-5 timing), and CAS latency 6 DDR2 800 Mhz (6-6-6 timing)
  • contain the mandatory JEDEC SPD information
In addition, the computer supports:
  • 512Mbit and 1Gbit non-ECC memory technologies
  • single-sided and double-sided DIMMs
  • DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported
  note:
The system will not operate properly if you install unsupported DIMMs.
There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled XMM1, XMM2, XMM3, and XMM4. Sockets XMM1 and XMM2 operate in memory channel A. Sockets XMM3 and XMM4 operate in memory channel B.
Item
Description
Socket Color
1
DIMM socket XMM1, Channel A (populate first)
Black
2
DIMM socket XMM2, Channel A
White
3
DIMM socket XMM3, Channel B (populate second)
Black
4
DIMM socket XMM4, Channel B
White
  note:
A DIMM must occupy the XMM1 socket.
The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the DIMMs are installed.
  • The system will operate in single channel mode if the DIMM sockets are populated in one channel only.
  • The system will operate in a higher-performing dual channel mode if the total memory capacity of the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B. The technology and device width can vary between the channels. For example, if Channel A is populated with two 512MB DIMMs and Channel B is populated with one 1GB DIMM, the system will operate in dual channel mode.
  • The system will operate in flex mode if the total memory capacity of the DIMMs in Channel A is not equal to the total memory capacity of the DIMMs in Channel B. In flex mode, the channel populated with the least amount of memory describes the total amount of memory assigned to dual channel and the remainder is assigned to single channel. For optimal speed, the channels should be balanced so that the largest amount of memory is spread between the two channels. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. For example, if you are populating the sockets with one 1GB DIMM, and three 512MB DIMMs, Channel A should be populated with the 1GB DIMM and one 512MB DIMM, and Channel B should be populated with the two 512MB DIMMs. With this configuration, 2GB will run as dual channel and 512MB will run as single channel.
  • In any mode, the maximum operational speed is determined by the slowest DIMM in the system.
  caution:
The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object. Refer to Electrostatic Discharge Information for more information.
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).
  2. Remove the computer access panel (Computer Access Panel).
      warning:
    To reduce risk of personal injury from hot surfaces, allow the internal system components to cool before touching.
  3. Open both latches of the memory module socket (1), and insert the memory module into the socket (2).
      note:
    A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket. A DIMM must occupy the black XMM1 socket.
      note:
    For maximum performance, populate the sockets so that the memory capacity is spread as equally as possible between Channel A and Channel B.
  4. Push the DIMM module down firmly into the socket, ensuring that the module is fully inserted and properly seated. The DIMM must be pushed all the way down into the socket and sit evenly in the socket to avoid memory corruption. Make sure the latches are in the closed position (3).
  5. Repeat steps 3 and 4 for any additional modules that you want to install.
  note:
The computer automatically recognizes the additional memory when turned on.
To reassemble the computer, reverse the removal procedure.
Expansion Cards
The computer has one standard PCI expansion slot that can accommodate an expansion card up to 17.46 cm (6.875 inches) in length. The computer also has two PCI Express x1 expansion slots and one PCI Express x16 expansion slot.
Figure :
Item
Description
1
PCI Express x1 expansion slot
2
PCI Express x1 expansion slot
3
PCI expansion slot
4
PCI Express x16 expansion slot
  note:
You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 expansion slot.
To remove, replace, or add an expansion card:
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot on the back of the computer chassis.
  4. On the rear of the computer, a slot cover lock secures the expansion card brackets and expansion slot covers in place. Lift up on the tab at the top of the lock and rotate the lock open.
    Figure :
  5. Before installing an expansion card, remove the expansion slot cover or the existing expansion card.
      note:
    Before removing an installed expansion card, disconnect any cables that may be attached to the expansion card.
    1. If you are installing an expansion card in a vacant socket, remove the appropriate expansion slot cover on the back of the chassis. Pull the slot cover straight up then away from the inside of the chassis.
    2. If you are removing a standard PCI card, hold the card at each end, and carefully rock it back and forth until the connectors pull free from the socket. Pull the expansion card straight up from the socket (1) then away from the inside of the chassis (2) to release it from the chassis frame. Be sure not to scrape the card against the other components.
    3. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket. Pull the expansion card straight up from the socket then away from the inside of the chassis to release it from the chassis frame. Be sure not to scrape the card against the other components.
  6. Store the removed card in anti-static packaging.
  7. If you are not installing a new expansion card, install an expansion slot cover to close the open slot.
      caution:
    After removing an expansion card, you must replace it with a new card or expansion slot cover for proper cooling of internal components during operation.
  8. To install a new expansion card, hold the card just above the expansion socket on the system board then move the card toward the rear of the chassis (1) so that the bracket on the card is aligned with the open slot on the rear of the chassis. Press the card straight down into the expansion socket on the system board (2).
      note:
    When installing an expansion card, press firmly on the card so that the whole connector seats properly in the expansion card slot.
  9. Rotate the slot cover lock to the closed position, ensuring that it snaps securely in place.
  10. Connect external cables to the installed card, if needed. Connect internal cables to the system board, if needed.
  11. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide for instructions on using Computer Setup.
Drives
When installing additional drives, follow these guidelines:
  • The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA connector on the system board labeled SATA0.
  • Connect the first SATA optical drive to the white SATA connector on the system board labeled SATA1.
  • Always populate the dark blue SATA0 and white SATA1 connectors before the light blue SATA4 and orange SATA5 connectors.
  • Connect a second SATA optical drive to the orange SATA5 connector.
  • Connect additional SATA hard drives to the next available (unpopulated) SATA connector on the system board in the following order: SATA0, SATA1, SATA5, SATA4.
  • Connect a diskette drive to the connector labeled FLOPPY.
  • Connect a media card reader to the USB connector labeled MEDIA.
  • The system does not support Parallel ATA (PATA) optical drives or PATA hard drives.
  • You may install either a third-height or a half-height drive into a half-height bay.
  • You must install guide screws to ensure the drive will line up correctly in the drive cage and lock in place. HP has provided extra guide screws installed on the interior of the chassis frame next to the power supply. The hard drive uses 6-32 isolation mounting guide screws. All other drives use M3 metric screws. The HP-supplied metric guide screws (1) are black. The HP-supplied 6-32 isolation mounting guide screws (2) are silver and blue.
  caution:
To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a drive, shut down the operating system properly, turn off the computer, and unplug the power cord. Do not remove a drive while the computer is on or in standby mode.
Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid touching the connector. For more information about preventing electrostatic damage, refer to Electrostatic Discharge Information.
Handle a drive carefully; do not drop it.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields such as monitors or speakers.
If a drive must be mailed, place the drive in a bubble-pack mailer or other protective packaging and label the package “Fragile: Handle With Care.”
System Board Drive Connections
Refer to the following illustration and table to identify the system board drive connectors.
No.
System Board Connector
System Board Label
Color
1
SATA0
SATA0
dark blue
2
SATA1
SATA1
white
3
SATA4
SATA4
light blue
4
SATA5
SATA5
orange
5
Diskette Drive
FLOPPY
black
6
Media Card Reader
MEDIA
black
Drive Positions
Figure :
1
Two 5.25-inch external drive bays for optional drives (optical drives shown)
2
One 3.5-inch external drive bay for optional drive (media card reader shown)
3
Primary 3.5-inch internal hard drive bay
4
Secondary 3.5-inch internal hard drive bay for optional hard drive
To verify the type and size of the storage devices installed in the computer, run Computer Setup. Refer to the Computer Setup (F10) Utility Guide for more information.
Removing an External 5.25-inch or 3.5-inch Drive
  caution:
All removable media should be taken out of a drive before removing the drive from the computer.
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Remove the front bezel (Front Bezel).
  4. Disconnect the drive cables, as indicated in the following illustrations.
    1. If you are removing a 5.25-inch optical drive, disconnect the power cable (1) and data cable (2) from the back of the drive.
      Figure :
    2. If you are removing a diskette drive, disconnect the data cable (1) and power cable (2) from the back of the drive.
    3. If you are removing a media card reader, disconnect the USB cable from the system board.
  5. A latch drive bracket with release tabs secures the drives in the drive bay. Lift the release tab on the latch drive bracket (1) for the drive you want to remove, then slide the drive from its drive bay (2).
  6. Remove the four guide screws (two on each side) from the old drive. You will need these screws to install a new drive.
Installing an External 5.25-inch or 3.5-inch Drive
  note:
The system does not support Parallel ATA (PATA) optical drives.
  1. Install the four guide screws (two on each side) that were removed from the old drive into the new drive. The screws help guide the drive into its proper position in the bay. Extra guide screws are provided on the interior of the chassis frame next to the power supply if needed.
      note:
    Optical drives, diskette drives, and media card readers use M3 metric guide screws. Four extra metric guide screws are provided on the interior of the chassis frame next to the power supply. The HP-supplied metric screws are black. Refer to Drives for an illustration of the extra M3 metric guide screws location.
    If you are replacing a drive, transfer the guides screws from the old drive to the new one.
  2. If necessary, remove the appropriate drive bezel blank from the front bezel by pressing the two retaining tabs towards the outer left edge of the bezel (1) and pull the bezel blank inwards to remove it (2).
  3. Slide the drive into the drive bay, making sure to align the guide screws with the guide slots, until the drive snaps into place.
  4. Connect the power and data cables to the drive as indicated in the following illustrations.
    1. If you are installing an optical drive, connect the power cable (1) and data cable (2) to the back of the drive.
        caution:
      Never crease or bend a SATA data cable tighter than a 30 mm (1.18 in) radius. A sharp bend can break the internal wires.
    2. If you are installing a diskette drive, connect the data cable (1) and power cable (2) to the back of the drive.
  5. If installing a new drive, connect the opposite end of the data cable to the appropriate system board connector.
      note:
    If you are installing a SATA optical drive, connect the first optical drive to the white SATA connector on the system board labeled SATA1. Connect a second optical drive to the orange SATA connector labeled SATA5.
    If you are installing a diskette drive, connect it to the connector on the system board labeled FLOPPY.
    If installing a media card reader, connect the USB cable from the media card reader to the USB connector on the system board labeled MEDIA.
    Refer to System Board Drive Connections for an illustration of the system board drive connectors.
Removing an Internal 3.5-inch Hard Drive
  note:
Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive. Also, if you are replacing the primary hard drive, make sure you have created a Recovery Disc Set to restore the operating system, software drivers, and any software applications that were preinstalled on the computer. If you do not have this CD set, select Start > HP Backup and Recovery and create it now.
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Remove the front bezel (Front Bezel).
  4. Disconnect the power cable (1) and data cable (2) from the back of the hard drive.
  5. Release the drive by pulling the release tab away from the drive (1) and sliding the drive out of the bay (2).
  6. Remove the four guide screws (two on each side) from the old drive. You will need these screws to install a new drive.
Installing an Internal 3.5-inch Hard Drive
  note:
The system does not support Parallel ATA (PATA) hard drives
  1. Install the four guide screws (two on each side) that were removed from the old drive into the new drive. The screws help guide the drive into its proper position in the bay. Extra guide screws are provided on the interior of the chassis frame next to the power supply.
      note:
    The hard drive uses 6-32 isolation mounting guide screws. Four extra guide screws are installed on the interior of the chassis frame next to the power supply. The HP-supplied isolation mounting guide screws are silver and blue. Refer to Installing and Removing Drives for an illustration of the extra 6-32 isolation mounting guide screws location.
    If you are replacing a drive, transfer the guides screws from the old drive to the new one.
  2. Slide the drive into the drive bay, making sure to align the guide screws with the guide slots, until the drive snaps into place. The upper bay is for the primary hard drive. The bottom bay is for an optional secondary hard drive.
  3. Connect the power cable (1) and data cable (2) to the back of the hard drive.
      note:
    If you are installing a primary hard drive, use the power connector labeled P4. If you are installing a secondary hard drive, use the power connector labeled P3.
      caution:
    Never crease or bend a SATA data cable tighter than a 30 mm (1.18 in) radius. A sharp bend can break the internal wires.
  4. If installing a new drive, connect the opposite end of the data cable to the appropriate system board connector.
      note:
    If your system has only one SATA hard drive, you must connect the hard drive data cable to the dark blue connector labeled SATA0 to avoid any hard drive performance problems. If you are adding a second hard drive, connect the data cable to the next available (unpopulated) SATA connector on the system board in the following order: SATA0, SATA1, SATA5, SATA4.
  5. Route the power and data cables in their cable retainers.
  6. Replace the front bezel and computer access panel.
  7. Reconnect the power cord and any external devices, then turn on the computer.
  8. Lock any security devices that were disengaged when the access panel was removed.
  note:
If you are replacing the primary hard drive, use the Recovery Disc Set to restore the operating system, software drivers, and any software applications that were preinstalled on the computer.
Removing and Replacing a Removable 3.5-inch SATA Hard Drive
Some models are equipped with a Removable SATA Hard Drive Enclosure in the 5.25-inch external drive bay. The hard drive is housed in a carrier that can be quickly and easily removed from the drive bay. To remove and replace a drive in the carrier:
  note:
Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive. Also, if you are replacing the primary hard drive, make sure you have created a Recovery Disc Set to restore the operating system, software drivers, and any software applications that were preinstalled on the computer. If you do not have this CD set, select Start > HP Backup and Recovery and create it now.
  1. Unlock the hard drive carrier with the key provided and slide the carrier out of the enclosure.
  2. Remove the screw from the rear of the carrier (1) and slide the top cover off the carrier (2).
  3. Remove the adhesive strip that secures the thermal sensor to the top of the hard drive (1) and move the thermal sensor away from the carrier (2).
  4. Remove the four screws from the bottom of the hard drive carrier.
  5. Slide the hard drive back to disconnect it from the carrier then lift it up and out of the carrier.
  6. Place the new hard drive in the carrier then slide the hard drive back so that it seats in the SATA connector on the carrier's circuit board. Be sure the connector on the hard drive is pressed all the way into the connector on the carrier's circuit board.
  7. Replace the four screws in the bottom of the carrier to hold the drive securely in place.
  8. Place the thermal sensor on top of the hard drive in a position that does not cover the label (1) and attach the thermal sensor to the top of the hard drive with the adhesive strip (2).
  9. Slide the cover on the carrier (1) and replace the screw on the rear of the carrier to secure the cover in place (2).
  10. Slide the hard drive carrier into the enclosure on the computer and lock it with the key provided.
      note:
    The carrier must be locked for power to be supplied to the hard drive.
ReadyBoost Card
A ReadyBoost card is installed on the system board. A 10-pin connector, as well as a separate post, secures the ReadyBoost card to the system board.
You can use two different methods to remove the ReadyBoost card. If replacing only the card, you can remove the card from the system board but leave the post in place. If replacing the card and post, you must remove the system board and then loosen the post from the bottom side of the system board before removing the card.
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Disconnect the main power cable from the system board and push it aside.
  4. Use tweezers or a small needle-nose pliers to compress the locking tip on the plastic standoff that secures the ReadyBoost module and then carefully lift the back edge of the module until it releases.
To install the ReadyBoost card:
  note:
If you are installing a ReadyBoost module for the first time, insert the plastic standoff into the mounting hole provided on the system board.
  1. Align the ReadyBoost module with the connector on the system board and the locking tip on the standoff.
  2. Push down until the module is securely in place.
  3. Connect the main power cable to the system board.
Processor Baffle
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Remove the hard drive cable from the clip on top of the baffle.
  4. Slide the baffle toward the rear of the chassis until the tab on the top of the baffle clears the slot on the fan baffle and the tabs on the bottom of the baffle slide to the larger opening in the slots in the base of the chassis.
  5. Lift the baffle up and out of the chassis.
To reinstall the processor baffle, reverse the removal procedure.
When reinstalling the processor baffle, first insert the two tabs on the bottom of the baffle into the slots in the base of the chassis, and the slide the baffle toward the front of the chassis until the tab on the top of the baffle slides into the fan baffle and the bottom tabs lock into place.
Fan/Air Baffle
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Unplug the fan cable from the system board (CHFAN, P9).
  4. Remove the processor baffle.
  5. Remove the silver T15 screw that secures the baffle to the base of the chassis.
  6. Unplug the speaker cable.
  7. Push down on the two top tabs that secure the baffle to the front of the chassis (1), and then push the two bottom tabs toward each other (2).
  8. Slide the baffle about 1 inch (2.5 cm) toward the rear of the unit, and then lift the baffle up and out of the chassis while threading the speaker cable through the hole on the side of the baffle.
To reinstall the fan/air baffle, reverse the removal procedure.
When reinstalling the baffle, be sure to thread the speaker cable back through the hole in the side of the baffle, and then plug the cable back into the system board.
Front USB Panel
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Remove the front bezel (Front Bezel).
  4. Disconnect the front I/O cable from the blue system board connector (P6) and the USB cable from the yellow system board connector (FRONT_USB, P24).
  5. Stand the unit upright.
  6. Remove the silver T15 screw that secures the panel to the chassis.
  7. Pull the panel away from the unit while threading the wires between the drive cage and the baffle and through the hole in the front of the chassis.
To reinstall the panel, reverse the removal procedure.
Power Switch/LED Assembly
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Remove the front bezel (Front Bezel).
  4. Remove the processor baffle (Processor Baffle).
  5. Remove the fan/baffle (Fan/Air Baffle).
  6. Disconnect the cable from the system board (P5, PB/LED).
  7. Press on the left side of the assembly and rotate away from the chassis while threading the cable between the drive cage and the front of the chassis, then through the hole in front of the chassis.
  8. Remove the assembly from the chassis.
To reinstall the assembly, insert the tabs on the right side of the assembly into the slots in the chassis, and then rotate the left side of the assembly down until it snaps into place.
Heatsink
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Unplug the fan cable from the system board (CPUFAN, P8).
  4. Loosen the four silver T15 captive screws that secure the heatsink to the system board.
      caution:
    Heatsink retaining screws should be removed in diagonally opposite pairs (as in an X) to even the downward forces on the processor. This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board.
  5. Remove the heatsink from the processor.
When reinstalling the heatsink, make sure that its bottom has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor.
  caution:
Heatsink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heatsink on the processor. This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board.
Processor
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Remove the heatsink (Heatsink).
  4. Rotate the locking lever to its full open position (1).
  5. Raise and rotate the microprocessor retainer to its fully open position (2).
  6. Carefully lift the processor from the socket (3).
      caution:
    Do NOT handle the pins in the processor socket. These pins are very fragile and handling them could cause irreparable damage. Once pins are damaged it may be necessary to replace the system board.
    The heatsink must be installed within 24 hours of installing the processor to prevent damage to the processor’s solder connections.
To install a new processor:
  1. Place the processor in its socket and close the retainer.
  2. Secure the locking lever.
    If reusing the existing heatsink, go to step 3.
    If using a new heatsink, go to step 5.
  3. If reusing the existing heatsink, apply the thermal grease provided in the spares kit to the top of the processor.
  4. Clean the bottom of the heatsink with the provided alcohol pad and place it atop the processor.
  5. If using a new heatsink, remove the protective covering from the bottom of the heatsink and place it in position atop the processor.
  6. Secure the heatsink to the system board and system board tray with the four captive screws and attach the heatsink control cable to the system board.
      caution:
    Heatsink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heatsink on the processor. This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board.
  note:
After installing a new processor onto the system board, always update the system ROM to ensure that the latest version of the BIOS is being used on the computer. Get the latest BIOS update from the HP Software download.
Speaker
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Remove the processor baffle (Processor Baffle).
  4. Remove the fan baffle (Fan/Air Baffle).
  5. Make sure the speaker wire is disconnected from the system board (SPKR, P6).
  6. From the inside of the chassis, remove the two silver T15 screws that secure the speaker to the chassis.
  7. Slide the speaker up and lift it out of the chassis.
To replace the speaker, reverse the removal procedures.
When replacing the speaker, be sure to route the cable through the hole in the left side of the processor baffle.
Rear Chassis Fan
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Disconnect the fan control cable from the system board (P11, POWER FAN).
  4. Remove the four silver Phillips screws that secure the fan to the chassis.
  5. Lift the fan out of the chassis.
To install the fan assembly, reverse the removal procedure. Be sure to orient the air flow out of the unit.
Optional Serial Port
The computer may include an optional second serial port. This port is installed in an expansion card slot, and you can use expansion card removal and replacement procedures to remove and install it.
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Disconnect the serial port cable from the system board.
  4. Remove the port assembly using the same procedure used to remove an expansion card. See Expansion Cards for more information.
To install the serial port, reverse the removal procedure.
Power Supply
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Disconnect all power cables from the drives and from the system board.
  4. Remove the four silver T15 screws that connect the power supply to the chassis.
  5. Press the tab in front of the power supply that holds it in place.
  6. Slide the power supply toward the front of the computer, rotate toward the fan so the power supply clears the lip on the top of the chassis, and then lift the power supply out of the chassis.
To install the power supply, reverse the removal procedure.
System Board
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
  3. Remove all expansion boards (Expansion Cards).
  4. Disconnect all cables connected to the system board, noting their location for reinstallation.
  5. Remove the heatsink (Heatsink).
  6. Remove the seven screws that secure the system board to the chassis.
  7. Slide the system board toward the front of the computer to disengage the I/O panel from the rear of the chassis.
  8. Lift the system board out of the computer.
When reinstalling the system board, first insert the I/O panel back into the slots in the rear of the chassis, and then align the board with the chassis screw holes.
  note:
When replacing the system board, you must change the chassis serial number in the BIOS.
Battery
The battery that comes with the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed in the computer. The computer comes with a 3-volt lithium coin cell battery.
  warning:
The computer contains an internal lithium manganese dioxide battery. There is a risk of fire and burns if the battery is not handled properly. To reduce the risk of personal injury:
Do not attempt to recharge the battery.
Do not expose to temperatures higher than 60°C (140ºF).
Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
Replace the battery only with the HP spare designated for this product.
  caution:
Before replacing the battery, it is important to back up the computer CMOS settings. When the battery is removed or replaced, the CMOS settings will be cleared. Refer to the Computer Setup (F10) Utility Guide for information on backing up the CMOS settings.
Static electricity can damage the electronic components of the computer or optional equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.
  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.
HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, go to http://www.hp.com/recycle.
  1. Prepare the computer for disassembly (Preparation for Disassembly).
  2. Remove the computer access panel (Computer Access Panel).
      note:
    It may be necessary to remove an expansion card to gain access to the battery.
  3. Locate the battery and battery holder on the system board.
  4. Depending on the type of battery holder on your system board, complete the following instructions to replace the battery:
Type 1 Battery Holder
  1. Lift the battery out of its holder.
  2. Slide the replacement battery into position, positive side up.
  3. The battery holder automatically secures the battery in the proper position.
  4. Replace the computer access panel.
  5. Plug in the computer and turn on power to the computer.
  6. Reset the date and time and any special system setups using Computer Setup. Refer to the Computer Setup (F10) Utility Guide.
Type 2 Battery Holder
  1. To release the battery from its holder, squeeze the metal clamp (1) that extends above one edge of the battery. When the battery pops up, lift it out.
  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. Reset the date and time and any special system setups using Computer Setup. Refer to the Computer Setup (F10) Utility Guide.
Type 3 Battery Holder
  1. Pull back on the clip (1) that holds the battery in place, then remove the battery (2).
  2. Insert the new battery and position the clip back in place.
  3. Replace the computer access panel.
  4. Plug in the computer and turn on power to the computer.
  5. Reset the date and time and any special system setups using Computer Setup. Refer to the Computer Setup (F10) Utility Guide.

hp-feedback-input-portlet

Actions
Loading...

hp-online-communities-portlet

Actions
Loading...

Ask the community!


Support Forum

Support Forum

Join the conversation! Find Solutions, ask questions, and share advice with other HP product owners. Visit now


hp-feedback-banner-portlet

Actions
Loading...

hp-country-locator-portlet

Actions
Loading...
Country/Region: Flag New Zealand

hp-detect-load-my-device-portlet

Actions
Loading...