The heatsink alignment posts are keyed. The processor will only install one way.
A standard heatsink is shown, your heatsink might look different.
CAUTION: Be sure to tighten each heatsink nut fully in the order indicated. Otherwise, boot
failure or intermittent shutdowns might occur.
c. Using a T-30 Torx screwdriver, tighten the nuts until they stop.
4. Install all components removed from the failed system board.
5. Install the cable clips.
6. If removed, install the fan cage brackets and the fan cage.
104 Removal and replacement procedures