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FusionServer Pro XH321 V5 Server Node V100R005 Maintenance and Service Guide 07

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Installing a Processor

Installing a Processor

  • Only Huawei technical support or personnel authorized by Huawei can install the processors from Huawei servers.
  • Do not wear ESD gloves during processor replacement. The gloves may catch on pins on the processor socket and damage it.
  • The same model of processors must be used in a server.
  • Before installing a processor, clean the surface of the processor, the heat sink, and the processor carrier. If there is residual thermal compound, use a tissue to clean it.


  1. Power off the server node.

    For details, see Power-Off Procedure.

  2. Remove the server node.

    For details, see Removing an XH321 V5.

  3. Place the server node on the ESD workstation.
  4. Remove the air duct.

    For details, see Removing the Air Duct.

  5. Take the spare part out of its ESD bag.
  6. Determine the position of the processor.

    Figure 8-37 Positions of processors

  7. Install the processor on the carrier.

    1. Take a processor carrier out of an ESD bag.
    2. Aligning the notch in one edge of the processor with the protrusion on the processor carrier, secure it.

      Ensure that the processor corner with a triangle mark is in the corner of the processor carrier with a notched triangle.

      Figure 8-38 Installing one end of the processor
    3. Bend the other edge of the processor carrier in the arrow direction.
      Figure 8-39 Installing the other end of the processor
    4. Release the processor carrier so that the other edge of the processor clips into place.
    5. Check that the processor and the carrier are level and the processor is firmly secured. If the processor is tilted, press the tilted part to fasten it.

  8. Apply thermal compound.

    1. Determine the area on the processor that will be in contact with the heat sink, and evenly apply 0.4 ml of thermal compound on the area.
      • When applying thermal compound, place the processor carrier on the desktop.
      • The thermal compound injector has volume marks.

      The two-line, five-dot, s-shape, and X-shape patterns are recommended.

      Figure 8-40 Pasting patterns
    2. Use a clean card or blade to smear the thermal compound over the entire center of the CPU.

      The thickness of the thermal compound is about that of a piece of ordinary paper. Ensure that the thermal compound is evenly and fully coated.

      Figure 8-41 Smeared thermal compound layer

  9. Install the processor carrier to the conjoined heat sink.

    1. Aligning the processor corner with a triangle mark with the corner of the heat sink with a notched triangle, buckle the processor carrier on the heat sink.
      Figure 8-42 Installing the processor carrier
    2. Place the assembled processor and heat sink upside down on the desk, and check that the processor carrier and the heat sink are firmly secured. If the processor carrier is not firmly buckled with the heat sink, press the processor carrier to secure it.

  10. Install the processor and conjoined heat sink.

    1. Remove the processor socket cover.

      When removing the socket cover, keep it parallel with the board to prevent damage to pins.

    2. Shine a light at various angles onto the processor socket to check for twisted pins, foreign matter, and pad damage.

      If bent pins or foreign matters are found or the bonding pad is damaged, stop the operation and contact Huawei technical support.

    3. Horizontally holding the processor and heat sink, align the notched corner on the heat sink with the notched corner on the processor socket, and place the processor and heat sink downwards on the socket along the guide sleeves.

      Keep the processor and heat sink parallel with the mainboard to prevent damage to processor socket pins.

    4. Use a Phillips screwdriver to tighten the two diagonal screws (marked 1 on the label) on the heat sink. See (1) in Figure 8-43.
    5. Use a Phillips screwdriver to tighten the four screws (marked 2 in the label) in the middle of the heat sink in a diagonal sequence. See (2) in Figure 8-43.
    Figure 8-43 Installing the heat sink

  11. Install the air duct.

    For details, see Installing the Air Duct.

  12. Install the server node.

    For details, see Installing an XH321 V5.

  13. Power on the server node.

    For details, see Power-On Procedure.

Updated: 2019-12-25

Document ID: EDOC1000183891

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