Dell PowerEdge R840 EMC Installation and Service Manual - Page 108

Installing a processor and heat sink module

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Next steps 1. Install the processor and heat sink module. Installing a processor and heat sink module Prerequisites 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. 1. Follow the safety guidelines listed in Safety instructions. 2. Follow the procedure listed in Before working inside your system. 3. Remove the processor blank and CPU dust cover, if installed. Steps 1. Align the Pin1 indicator on the heat sink with the indicator on the system board and 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. 2. Push the blue retention clips inward to allow the heat sink to drop in place. 3. Using the Torx #T30 screwdriver, tighten the screws on the heat sink in the order below: a. Partially tighten the first screw (approximately 3 turns). b. Tighten the second screw completely. c. 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: a. Loosen both the heat sink screws completely. b. Lower the PHM on to the blue retention clips. c. Secure the PHM to the system board, following the replacement instructions listed in this step mentioned above. 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 74. Installing a processor and 1U heat sink module 108 Installing and removing system components

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Next steps
1.
Install the processor and heat sink module
.
Installing a processor and heat sink module
Prerequisites
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.
1.
Follow the safety guidelines listed in
Safety instructions
.
2.
Follow the procedure listed in
Before working inside your system
.
3.
Remove the processor blank and CPU dust cover, if installed.
Steps
1.
Align the Pin1 indicator on the heat sink with the indicator on the system board and 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.
2.
Push the blue retention clips inward to allow the heat sink to drop in place.
3.
Using the Torx #T30 screwdriver, tighten the screws on the heat sink in the order below:
a.
Partially tighten the first screw (approximately 3 turns).
b.
Tighten the second screw completely.
c.
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:
a.
Loosen both the heat sink screws completely.
b.
Lower the PHM on to the blue retention clips.
c.
Secure the PHM to the system board, following the replacement instructions listed in this step mentioned above.
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 74. Installing a processor and 1U heat sink module
108
Installing and removing system components