Dell EMC PowerEdge R550 Installation and Service Manual

Installing the processor heat sink module

Prerequisites

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

Follow the safety guidelines listed in the Safety instructions.
Follow the procedure listed in the Before working inside your system.
Remove the air shroud.
If installed, remove the processor dust cover.

Steps

Set the anti-tilt wires to the unlocked position on the heat sink (inward position).
Align the pin 1 indicator of the processor heat sink module (PHM) to the system board, and then place the 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.
Figure 1. Installing the processor heat sink module
Set the anti-tilt wires to the locked position (outward position), and then using the Torx #T30 tool, tighten the captive nuts (8 in-lbf) on the PHM in the order below:
1. In a random order, tighten the first nut three turns.
2. Tighten the nut diagonally opposite to the nut you tighten first.
3. Repeat the procedure for the remaining two nuts.
4. Return to the first nut to tighten it completely.
5. Check all the nuts to ensure they are firmly secured.
Figure 2. Setting the anti-tilt wires to the locked position and tighten the nuts