Dell 34PR7 Installation And Service Manual page 52

Figure 41. Applying thermal grease on top of the processor
3. Place the heat sink onto the processor with the cable end facing the drive carrier.
4. Align the screws on the heat sink with the standoff screws on the system board.
5. Using a Phillips #2 screwdriver, tighten the screws in the following order to secure the heat sink to the system board.
a. Tighten the first screw three turns.
b. Tighten the screw diagonally opposite to the screw you loosened.
6. Repeat the procedure for the remaining two screws.
7. Return to the first screw to tighten it.
Figure 42. Installing the heat sink
52 Installing and removing system components