Service Manual

Replacing Fans 77
11
Replacing Fans
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
WARNING: To guard against likelihood of electric shock, laceration by moving
fan blades or other unexpected injuries, always unplug your computer from the
electrical outlet before removing the cover.
Removing the Card Slot and Processor Fan Shrouds
1 Follow the procedures in "Before You Begin" on page 13.
2 Remove the computer cover (see "Replacing the Computer Cover" on
page 17).
3 Remove the captive screws on top of the shroud you are removing and lift
the shroud out of the chassis.
Replacing the Card Slot Fan Assembly
1 Remove the card slot fan shroud (see "Removing the Card Slot and
Processor Fan Shrouds" on page 77).
2 Remove any full-length expansion cards (see "Replacing the PCI and PCI
Express Cards" on page 35).
3 Disconnect the fan cable from the FAN_CAGE connector on the system
board.
4 Remove the front and back screws on the base of the fan cage.
5 Pull the fan cage to towards the rear of the chassis to disengage the cage
tabs.
6 Lift the cage off the chassis.