Dell OptiPlex XE3 Small Form Factor Service Manual

6. Remove the heat sink with fan:
a) Disconnect the heat sink fan cable from the system board [1].
b) Loosen the 4 captive screws that secure the heat sink [2] and lift it away from the system [3].
NOTE:
Loosen the screws in a sequential order (1,2,3,4) as mentioned on the system board.
Installing the VGA card 115

Dell OptiPlex XE3 Small Form Factor Specifications

General

Brand	Dell
Model	OptiPlex XE3 Small Form Factor
Category	Desktop
Language	English