Dell Vostro 400 (Mid 2007) - Manual (Page 157)

Removing and Installing Parts
157
NOTE:
The processor fan/heat sink assembly in your computer may vary from the
one shown in the illustration.
Installing the Processor Fan/Heat Sink Assembly
NOTICE:
When reinstalling the fan, ensure that you do not pinch the wires that run
between the system board and the fan.
1 Align the captive screws on the processor fan/heat sink assembly to the
four metal screw hole projections on the system board.
NOTE:
The processor fan/heat sink assembly in your computer may vary from the
one shown in the illustration above.
2 Tighten the four captive screws.
NOTE:
Ensure that the processor fan/heat sink assembly is correctly seated
and secure.
3 Connect the processor fan/heat sink assembly cable to the system board
(see "System Board Components" on page 106).
1 captive screws (4) 2 processor fan/heat sink
assembly
2
1