Figure 78. Installing a heat sink
Next steps
1. If removed, install the air shroud.
2. Follow the procedure listed in the After working inside your system.
Installing the liquid cooling heat sink modules
Prerequisites
Never uninstall 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.
1. Follow the safety guidelines listed in the Safety instructions.
2. Follow the procedure listed in the Before working inside your system.
3. Remove the system cover.
4. Remove the air shroud.
5. Remove riser 3 or liquid cooling riser 3.
6. If installed, remove the processor dust cover.
7. For new heat sinks, refer to Installing the heat sink step 1 and 2 for applying the thermal grease.
Steps
1. Align the screws on the liquid cooling heat sink modules with the standoff screws on the system board. Ensure that the liquid
cooling tubes and liquid detection cable are placed towards the rear of the chassis. Using a Torx #T20 screwdriver, tighten
the captive screws in the order that is mentioned below:
NOTE: The A1 extrusion on the L-type heat sink should face towards the system side.
a. Partially tighten the captive screws 1 and 2 (approximately 3 turns).
b. Partially tighten the captive screws 3 and 4 (approximately 3 turns).
c. Tighten the captive screws 1 and 2 completely.
d. Tighten the captive screws 3 and 4 completely.
2. Ensure that the liquid cooling tubes leading towards the front of the chassis is placed between the DIMM slots and the
J_SL connectors. And the tubes leading towards the rear of the chassis are placed in between the DIMM slots and the relay
components.
Installing and removing system components
81
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