Removing and Installing Parts: Dell Dimension 9150 Service Manual

b.Set the retention mechanism aside in a secure location.

4.Use a long Phillips screwdriver to loosen the two captive screws on each side of the heat-sink assembly.

CAUTION: Despite having a plastic shield, the heat-sink assembly may be very hot during normal operation. Be sure that it has had sufficient time to cool before you touch it.

5. Rotate the heat-sink assembly towards the rear of the computer, and remove it from the computer.

1 heat sink and fan shroud assembly 2 captive screw housing (2)

6.Place the heat-sink assembly on its side in a safe place.

7.Disconnect the system fan cable from the system board.

8.Ensure that all cables have been removed from the routing clips on the top of the system fan assembly.

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Dell 9150 service manual