Installing The Heat Sink Assembly - Dell ChengMing 3977 Tower Owner's Manual

3 To remove the heat sink assembly:
a Disconnect the heat sink cable from the system board [1].
b Loosen the captive screws(6-32xL6.35) in diagonal order [2].
NOTE:
[1, 2, 3, 4].
c Lift the heat sink assembly away from the computer [3].

Installing the heat sink assembly

1 Align the heat sink assembly with screw holders on the system board.
2 Tighten the screws(6-32xL6.35) to secure the heat sink assembly to the computer and system board.
NOTE: Tighten the screws on the system board in the order of the callout numbers [1, 2, 3, 4].
3 Connect the heat sink cable to the connector on the system board.
4 Install the:
a cooling shroud
b cover
5 Follow the procedure in
Remove the screws that secure the heat sink to the system board in the order of the callouts shown
After working inside your computer.
Removing and installing components 17