Dell EMC PowerEdge M640 Installation and Service Manual

Installing a processor and heat sink module

CAUTION: Never remove the heat sink from a processor unless you intend to replace the processor. The heat sink is necessary to maintain proper thermal conditions.

WARNING: The heat sink may be hot to touch for some time after the system has been powered down. Allow the heat sink to cool before removing it.

Follow the safety guidelines listed in Safety instructions.

Align the pin 1 indicator of the heat sink to the system board and then place the processor and heat sink module (PHM) on the processor socket.
- CAUTION: To avoid damaging the fins on the heat sink, do not press down on the heat sink fins.
- NOTE: Ensure that the PHM is held parallel to the system board to prevent damaging the components.
Push the blue retention clips inward to allow the heat sink to drop into place.
Supporting the heat sink with one hand, use the Torx #T30 screwdriver and tighten the screws on the heat sink in the order below:
1. Partially tighten the first screw (approximately 3 turns).
2. Tighten the second screw completely.
3. Return to the first screw and tighten it completely.
If the PHM slips off the blue retention clips when the screws are partially tightened, follow these steps to secure the PHM:
1. Loosen both the heat sink screws completely.
2. Lower the PHM on to the blue retention clips, follow the procedure described above in step 2.
3. Secure the PHM, follow the procedure described above in step 3.
- NOTE: The processor and heat sink module retention screws should not be tightened to more than 0.13 kgf-m (1.35 N.m or 12 in-lbf).
Figure 1. Installing a processor and heat sink module