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KunLun 9016 V100R001 User Guide 12

This document describes the appearance, specifications, parameters, and structure of the KunLun 9016, and how to install an OS, replace parts, and install, remove, configure, and troubleshoot the server.
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Removing a CPU

Removing a CPU

Scenarios

Remove a CPU in any of the following scenarios:

  • The CPU has failed.
  • The CPU needs to be replaced with a new model.

Prerequisites

Conditions

Only personnel authorized by Huawei and Huawei technical support are allowed to replace a CPU.

Do not wear ESD gloves during CPU replacement. The gloves may catch on pins on the CPU socket and damage it.

Data

No data preparation is required for this operation.

Tools

  • ESD wrist strap
  • Packaging materials, for example, an ESD bag

Procedure

  1. Power off the physical partition where the CPU is located. For details, see Powering Off the 9016.
  2. Remove the SCM where the CPU is located. For details, see Removing an SCM.
  3. Release the CPU levers near the heat sink. See step (1) in Figure 6-57.
  4. Remove the heat sink. See step (2) in Figure 6-57.
    Figure 6-57 Removing a heat sink

    Do not use any tool or sharp object to lift the levers on the CPU socket. Otherwise, the CPU socket or CPU may be damaged.

  5. Release the CPU lever near the or label. See step (1) in Figure 6-58.
  6. Release the CPU lever near the or label. See step (2) in Figure 6-58.
  7. Open the CPU socket cover. See step (3) in Figure 6-58.
  8. Remove the CPU from its socket. See step (4) in Figure 6-58.
  9. Check that the CPU surface is clean. Use a tissue to clean off any residual thermal paste. Then place the removed CPU in an ESD bag.
    Figure 6-58 Removing a CPU

  10. Install a CPU protection cap according to its appearance. For details, see(appearance 1) or (appearance 2).

    Install a CPU protection cap (appearance 1).

    A CPU protection cap is properly installed in a CPU socket if the dents on the edges of the protection cap fit into the convex grooves on the edges of the CPU socket. An ill-positioned CPU protection cap may damage pins in the CPU socket.

  11. Hold the CPU protection cap horizontally, align the protection cap with the CPU socket, and place the protection cap vertically downward into the CPU socket. See step (1) in Figure 6-59.
  12. Close the CPU socket cover. See step (2) in Figure 6-59.
  13. Secure the CPU lever near the or label. See step (3) in Figure 6-59.
  14. Secure the CPU lever near the or label. See step (4) in Figure 6-59.
    Figure 6-59 Installing a CPU protection cap

    Install a CPU protection cap (appearance 2).

  15. Close the CPU socket cover. See step (1) in Figure 6-60.
  16. Hold the CPU protection cap horizontally, align it with the CPU socket, and place the protection cap vertically downward into the CPU socket. See step (2) in Figure 6-60.
    NOTE:

    An ill-positioned CPU protection cap may damage pins in the CPU socket.

  17. Secure the CPU levers. See steps (3) and (4) in Figure 6-60.
Figure 6-60 Installing a CPU protection cap

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Updated: 2019-05-20

Document ID: EDOC1000111827

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