Desktop Computer Parts 257
Installing the System Board
1
Gently align the board into the chassis and slide it toward the back of the
computer.
2
Using the seven screws, secure the system board to the chassis.
CAUTION: Failure to replace and tighten all screws may cause electrical shock
as these screws are a key part of the system grounding.
3
Replace the cables that you removed from the system board.
4
Replace the processor and the heat sink assembly (see "Installing the
Processor" on page 249).
NOTICE: Ensure that the heat sink assembly is correctly seated and secure.
5
Replace the memory modules into the memory sockets at the same
locations from which you removed them (see "Installing Memory" on
page 217).
6
Replace any add-in cards on the system board.
7
Replace the computer cover (see "Replacing the Computer Cover" on
page 257).
NOTICE: To connect a network cable, first plug the cable into the network device
and then plug it into the computer.
8
Connect your computer and devices to an electrical outlet, and turn
them on.
9
Verify that the computer works correctly by running the Dell Diagnostics
(see "Dell Diagnostics" on page 111).
Replacing the Computer Cover
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions located in the Product Information Guide.
1
Ensure that all cables are connected, and fold cables out of the way.
2
Ensure that no tools or extra parts are left inside the computer.
3
To replace the cover:
a
Align the bottom of the cover with the hinge tabs located along the
bottom edge of the computer.
b
Using the hinge tabs as leverage, rotate the cover downward to close it.
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