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Dell EMC PowerEdge R940xa Installation and Service Manual

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Removing a processor and heat sink module

Prerequisites

WARNING The heat sink may be hot to touch for some time after the system is powered down. Allow the heat sink to cool before removing it.
  1. Follow the safety guidelines listed in Safety instructions.
  2. Follow the procedure listed in Before working inside your system.
  3. Remove the support bar.
  4. Remove the air shrouds.
  5. Remove the cooling fan assembly, if you are replacing the heat sink 3 or 4.

Steps

  1. Use a Torx #T30 screwdriver to loosen the screws on the heat sink in the order mentioned below:
    1. Loosen the first screw three turns.
    2. Loosen the second screw completely.
    3. Return to the first screw and loosen it completely.
  2. Push both blue retention clips simultaneously and lift the processor and heat sink module (PHM).
  3. Set the PHM aside with the processor side facing up.
    Figure 1. Removing a PHM from CPU 1 or 2
    Removing the PHM from CPU 1 or 2
    Figure 2. Removing a PHM from CPU 3 or 4
    Removing the PHM from CPU 3 or 4

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