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Removing and Installing Parts 141
NOTE: Jumper settings on replacement system boards are preset by the factory.
1
Transfer components from the existing system board to the replacement system board, if applicable.
2
Orient the system board assembly by aligning the notches on the bottom of the assembly with the tabs
on the computer.
3
Slide the system board assembly toward the back of the computer until the assembly clicks into place.
4
Replace the two screws to secure the system board assembly to the chassis.
5
Align the screw holes on the card fan assembly with the screw holes on the system board assembly, then
replace the two screws to secure the card fan assembly.
6
Connect the fan cable to the FAN_CAGE connector on the system board (see "System Board
Components" on page 89).
7
Replace any expansion cards that you removed (see "Installing PCI and PCI Express Cards" on
page 97).
8
Replace any additional components that you removed from the system board.
9
Reconnect all cables to the system board.
10
Replace the computer cover (see "Replacing the Computer Cover" on page 159).
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into your
computer.
11
Connect your computer and devices to electrical outlets, and then turn them on.
12
Flash the system BIOS, as needed.
NOTE: For information on flashing the system BIOS, see support.dell.com.
Power Supply
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.