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XH321L V5 Server Node V100R005 Maintenance and Service Guide 02

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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).
CPU

CPU

Removing a CPU

  1. Determine the CPU to be removed, as shown in Figure 3-33.

    Figure 3-33 CPU installation position

  2. Remove cables as required. See Internal Cabling for the RAID Controller Card or Internal Cabling for the SATA Controller Integrated in the Southbridge.
  3. Use a Phillips screwdriver to loosen the screws fastening the node panel and remove the node panel in the arrow direction. See (1) and (2) in Figure 3-34.
  4. Use the Phillips screwdriver to remove the four screws that secure the liquid-cooled module. See (4) in Figure 3-34.

    Figure 3-34 Removing the liquid-cooled module

  5. Use a Phillips screwdriver to loosen one pair of diagonally opposite screws on the liquid-cooled heat sink halfway and then loosen the other pair of screws. See (1), (2), and (3) in Figure 3-35.
  6. Remove the heat sink, and place it upside down. See (4) in Figure 3-35 and Figure 3-36.

    NOTE:

    Use one hand to hold the server node and the other hand to lift the heat sink.

    Figure 3-35 Removing the liquid-cooled module
    Figure 3-36 Placing the heat sink upside down

  7. Use a flat-head screwdriver to lever the CPU installation tool with the CPU inside upwards. See (1) in Figure 3-37.

    Figure 3-37 Removing the CPU installation tool with the CPU inside

  8. Pinch the retain clip on the other edge. See (2) in Figure 3-37. Lift the carrier with the CPU inside upwards in the direction of the arrow. See (3) in Figure 3-37.
  9. Bend the carrier edge with a triangular hole to release the CPU from the carrier. See Figure 3-38.

    Figure 3-38 Removing the CPU (1)

  10. Holding both the sides of the CPU, lift it upwards to remove it. See Figure 3-39.

    Figure 3-39 Removing the CPU (2)
    NOTE:

    When removing the CPU, hold the CPU and CPU carrier to prevent them from falling.

  11. Clean the removed CPU and place it in an ESD bag.

Installing a CPU

  1. Determine the CPU to be installed, as shown in Figure 3-33.

    Figure 3-40 CPU installation position

  2. Take a spare CPU out of its ESD bag.
  3. Use tissue to clean up the oil, remaining thermal compound, or foreign objects from the surfaces of the CPU and heat sink.
  4. Determine the area on the heat sink that comes in contact with the CPU, and paste thermal compound in the center of the area.

    NOTE:

    Paste an appropriate quantity of thermal compound evenly on the CPU surface.

    For details about how to paste thermal compound, see Figure 3-41. The pasting methods are as follows:

    • Single-point pasting method: applies to a small socket.
    • Single-line pasting method: applies to a long socket.
    • Dual-line, cross, five-point, and S-shaped pasting methods: apply to a large square socket.
    Figure 3-41 Pasting methods

  5. Use a clean card to smear the thermal compound over the entire center of the CPU.

    The thermal compound layer is as thick as a piece of common paper. Figure 3-42 shows the smeared thermal compound layer. Ensure that the thermal compound is evenly and fully painted.

    Figure 3-42 Smeared thermal compound layer

  6. Latch the CPU into one side of the CPU carrier. See Figure 3-43.

    NOTE:

    Ensure that the CPU corner marked with a triangle is in the corner of the carrier with a triangular hole.

    Figure 3-43 Installing one edge of a CPU

  7. Bend the other edge of the CPU carrier in the direction of the arrow. Release the CPU carrier so that the other edge of the CPU clips into place. See Figure 3-44.

    Figure 3-44 Installing the other edge of a CPU

  8. Release the CPU carrier so that the other edge of the CPU clips into place.
  9. Check that the CPU is securely installed and level with the carrier. Press down to secure any raised parts.
  10. Install the CPU carrier on the heat sink and ensure that all retaining clips have been fastened to the heat sink. See Figure 3-47.

    NOTE:

    Align the notched corner on the heat sink with the triangular hole of the carrier.

    Figure 3-45 Installing the CPU and heat sink

  11. Align the heat sink with the memory slot, and gradually place the liquid-cooled heat sink on the tray along the guide sleeves. See (1) in Figure 3-46.
  12. Use a Phillips screwdriver to fasten one pair of diagonally opposite screws on the heat sink halfway and then fasten the other pair of screws. See (2), (3) and (4) in Figure 3-47.

    Figure 3-46 Installing the liqid-cooled heat sink (1)

  13. Use the Phillips screwdriver to fasten the four screws that secure the liquid-cooled module. See (1) in Figure 3-47.
  14. Install the node panel in the arrow direction, and use a Phillips screwdriver to tighten the screws on the node panel. See (2) and (3) in Figure 3-47.

    Figure 3-47 Installing the liquid-cooled heat sink (2)
    NOTE:

    Ensure that the screws on the heat sink are fastened.

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Updated: 2019-01-08

Document ID: EDOC1100033003

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