Figure 97. 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.
Removing the liquid cooling heat sink modules
Prerequisites
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.
WARNING:
The Direct liquid cooling (DLC) module and processor are too hot to touch for some time after the
system has been powered off. Allow the liquid cooling module and processor to cool down before handling them.
NOTE: Rear I/O (RIO) board is different for the system with DLC module.
Steps
1. Using a Phillips #2 screw driver, loosen the captive screw on the DLC ring holder.
2. Tilt the DLC ring holder to loosen the DLC tubes.
3. Disconnect the DLC leak detection cable from the LC RIO board.
4. Remove the DLC tubes from the clip and LC RIO board.
5. Slightly lift the DLC tubes surrounding the DIMM slots.
6. Using a Torx #T20 screwdriver, fully loosen the captive screw all the way before moving to the next screw (on one-screw-
at-a-time basis).
NOTE: Follow the screw sequence defined on the heat sink label. Disassembly order: 6, 5, 4, 3, 2, 1.
NOTE: The captive screw numbers are marked on the heat sink.
NOTE: Ensure the anti-tilt wires on the DLC module are in locked position when loosening the captive screws.
7. Set the anti-tilt wires on the DLC module to the unlock position and lift the DLC module from the system.
Installing and removing system components
119
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