Skip to main content

Remove the processor board

Use this information to remove the processor board.

About this task

Required tools

  • Screwdriver for M3 PH1, PH 1, PH 2, T10, and T30 screws

  • Waterloop Service Kit (SC750 V4) (The water loop carrier in the Service Kit is reusable, it is recommended to keep it at the facility where the server operates for future replacement needs.)

  • Up VR Gap Pad Kit (SC750 V4)

  • Down VR Gap Pad Kit (SC750 V4)

  • MID E3.S TOP Gap Pad (SC750 V4) , if E3.S middle drive is installed.

  • MID E3.S BOT Gap Pad (SC750 V4) , if E3.S middle drive is installed.

  • Storage Gap Pad Kit (SC750 V4) , if E3.S front drive is installed.

  • Storage Gap Pad Kit (SC750 V4) , if E3.S 1T dual front drives or E3.S 2T single front drive are installed.

  • CX7 NDR200 Gap Pad (SC750 V4) , if ConnectX-7 NDR 200 adapter is installed.

  • CX7 Gap Pad (SC750 V4) , if ConnectX-7 NDR 400 adapter is installed.

Attention

  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

  • Turn off the corresponding DWC tray that you are going to perform the task on.

  • Disconnect all external cables from the enclosure.

  • Use extra force to disconnect QSFP cables if they are connected to the solution.

  • To avoid damaging the water loop, always use the water loop carrier when removing, installing or folding the water loop.

Watch the procedure
  • A video of this procedure is available at YouTube.

Procedure

  1. Make preparations for this task.
    1. Remove the tray from the enclosure. See Remove a tray from the enclosure.
    2. Remove the tray cover. See Remove the tray cover.
    3. If DIMM comb is installed, remove it. See Remove a DIMM comb.
    4. Remove the memory module, perform one of the following.
    5. Remove the cross braces. See Remove the cross braces.
    6. If DIMM cooling bars are installed, remove them. See Remove a DIMM cooling bar.
    7. Remove the front E3.S drive cage. see Remove an E3.S front drive cage assembly.
    8. Remove the PCIe adapter riser assembly. See Remove a ConnectX-7 NDR 200 adapter riser assembly or Remove a ConnectX-7 NDR 400 adapter riser assembly.
    9. Remove the middle E3.S drive cage. see Remove an E3.S middle drive cage assembly.
    10. Remove the sideband cable kit. See Remove the system management sideband cable kit.
    11. Remove the leakage sensor module. See Remove the leakage sensor.
  2. (Optional) When removing processor board from Node A, remove the leakage sensor module holder. Remove two screws from the holder, and remove it from the tray.
    Figure 1. Removing leakage sensor module bracket screws

  3. Remove the water loop from the tray. See Remove the water loop.
  4. Remove the front I/O board. See Remove the front I/O board.
  5. Remove the system I/O board.
    1. Remove two M3 PH1 screws from the system I/O board.
    2. Remove the system I/O board from the system board assembly.
    Figure 2. Removing the system I/O board

  6. Remove the four Torx T10 screws (per node) to remove the VR cold plate from the processor board.
    Figure 3. Removing VR cold plate

  7. Remove the processor board.
    1. Remove three Phillips #1 screws per node on the system board (with a torque screwdriver set to the proper torque).
    2. Remove the processor board.
    Note

    For reference, the torque required for the screws to be fully tightened/removed is 0.5-0.6 newton-meters, 4.5-5.5 inch-pounds.

    Figure 4. Processor board screws removal
    System board screws removal

If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

Important
Before you return the processor board, make sure that you install the processor socket dust covers from the new system board. To replace a processor socket dust cover:

  1. Take a dust cover from the processor socket assembly on the new processor board and orient it correctly above the processor socket assembly on the removed processor board.

  2. Gently press down the dust cover legs to the processor socket assembly, pressing on the edges to avoid damage to the socket pins. You might hear a click on the dust cover is securely attached.

  3. Make sure that the dust cover is securely attached to the processor socket assembly.