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G5 5000 Service Manual

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Removing the system board

Prerequisites

  1. Follow the procedure in Before working inside your computer.
    NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
    NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You must make the appropriate changes again after you replace the system board.
    NOTE: Note the routing of all cables as you remove them so that you can route them correctly after you replace the system board.
  2. Remove the left-side cover.
  3. Remove the front cover.
  4. Remove the 3.5-inch hard drive.
  5. Remove the LED daughter board.
  6. Remove the chassis fan.
  7. Remove the memory module.
  8. Remove the wireless card.
  9. Remove the solid-state drive/Intel Optane.
  10. Remove the graphics card.
  11. Remove the processor fan and heat-sink assembly.
  12. Remove the voltage regulator heat sink (optional).
  13. Remove the processor.

About this task

Figure 1. System-board components
Image: System-board components
  1. front LED cable connector (PWR SW)
  2. LED daughter-board
  3. hard-drive data cable connector (SATA0)
  4. hard-drive power cable connector (SATA PWR)
  5. power-supply unit cable connector
  6. wireless-card slot
  7. coin-cell battery
  8. solid-state drive connector (m.2 PCIe SSD)
  9. PCIe x16 slot
  10. chassis-fan cable connector (FAN SYS)
  11. processor-power cable connector (ATX CPU1)
  12. processor-power cable connector (ATX CPU)
  13. processor
  14. memory-module slot (DIMM3)
  15. memory-module slot (DIMM1)
  16. memory-module slot (DIMM4)
  17. memory-module slot (DIMM2)

The following images indicate the location of the system board and provides a visual representation of the removal procedure.

Image: Removing the system board

Image: Removing the system board

Image: Removing the system board

Steps

  1. Lay the computer on the right side.
  2. Remove the screw (#6-32) that secures the front I/O-bracket to the chassis.
  3. Remove the front I/O-bracket from the chassis.
  4. Push the tab and disconnect the cables connected to the system board.
  5. Remove the cables from the routing guides on the system board.
  6. Remove the screw (M2x4) that secures the system board to the chassis.
  7. Remove the eight screws (#6-32) and that secure the system board to the chassis.
  8. Lift the system board at an angle and remove it off the chassis.

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