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HP Workstation zx6000 - Removing and Replacing the System Board


This document provides procedures for removing and replacing the system board.

Removing and replacing the system board

CAUTION: Some system settings are saved to the LED status panel. To replace both the LED status panel and the system board, they must be replaced one at a time to avoid loss of system settings. First replace one component, then turn on the system and boot to the EFI prompt. After confirming that the first component has been replaced successfully, shut down the system and replace the second component.

Removing the system board

To remove the system board, follow these steps:

  1. Turn off the system, disconnect all power and external cables and remove the cover(s).

  2. Remove these components from the system board:

    • Memory

    • System fans

    • PCI/AGP card cage

    • Processor airflow guide and processor(s)

    • Management card (if installed)

  3. If the system does not have a management card installed, remove the power connector plate.

    1. Unscrew the two power connector mounting screws on the back of the system.

    2. Reach inside the system to remove the power connectors from the socket. The power connectors will still be connected to their cables.

    Figure 1: Removing the power connectors

    1 - Power connector mounting screws
    2 - Power connectors
  4. Unscrew the six backplane system board mounting screws that connect the system board to the rear of the system chassis.

    Figure 2: Unscrewing the six system board mounting screws

    1 - System board mounting screws
    2 - System board mounting screws
  5. Disconnect all cables that are connected to the system board. To help with re-assembly, make note of which cables were connected to which connector.

    NOTE: To access the three power cables near the PCI/AGP cage, lift up the connector bridge for the PCI/AGP cage fan.
  6. Unscrew the system board’s mounting screw. A screw symbol is adjacent to the mounting screw.

    Figure 3: Unscrewing the system board mounting screw

    1 - System board mounting screw
  7. Remove the system board:

    1. Grasp the memory controller chip’s heatsink and the processor’s heatsink and slide the system board toward the front of the system. This releases the system board from its chassis standoffs.

    2. Lift up the processor side of the system board and slide it free of the PCI/AGP cage bay.

Figure 4: Removing the system board from the system

1 - System board
2 - Front of system

Replacing the system board

To replace the system board, follow these steps:

  1. Remove the system board.

  2. Grasp the new system board by its edges and carefully align it in the system.

    1. Angle the system board to allow the PCI connector to slide into the PCI/AGP cage bay area.

    2. Align the system board keyholes with their corresponding standoffs on the chassis.

    3. Slide the PCI connector posts on the system board into their slots on the system chassis.

    Figure 5: Aligning the system board in the system

    1 - PCI connector posts
    2 - Slots for PCI connector posts
  3. Slide the system board back toward the rear of the system to secure the system board on its standoffs.

    Figure 6: Securing the system board on its standoffs

    1 - System board
  4. Screw in the system board mounting screw.

  5. Connect all cables to their appropriate connectors on the system board.

  6. Screw in the six rear backplane system board mounting screws.

  7. If the system does not have a management card, replace the power connectors in their slots on the back of the system and screw in the power connector mounting screws.

  8. Replace the following system components:

    • Management card

    • Processor airflow guide

    • System fans

    • PCI/AGP card cage

    • Memory

  9. Replace the system cover(s), reconnect all of the power and external cables and turn on the system.

  10. Run info cpu command at the EFI prompt to verify that the processor works.

  11. Review the system configuration in the EFI shell and reconfigure settings as necessary.



  • Affected products

  • HP Workstation zx6000

Administrative information

December 11, 2002
Jean Frerichs
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