Dell XPS 420 (Late 2007) - Manual (Page 147)

Removing and Installing Parts
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8 Check all cable connections, and fold cables out of the way to provide
airflow for the fan and cooling vents.
9 Replace the drive panel (see "Replacing the Drive Panel" on page 127).
10 Replace the computer cover (See "Replacing the Computer Cover" on
page 172).
NOTICE:
To connect a network cable, first plug the cable in to the network wall
jack and then plug it in to the computer.
11 Connect your computer and devices to their electrical outlets, and then
turn them on.
12 When you restart your computer, enter system setup (see "System Setup"
on page 178). On the setup screen go to the "Drives" section and under
SATA 0 through 4 , enable the SATA port for this drive.
See the documentation that came with the drive for instructions on
installing any software required for drive operation.
13 Verify that your computer works correctly by running the Dell Diagnostics
(see "Dell Diagnostics" on page 86).
1 CD/DVD cable 2 power cable 3 system board
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book.book Page 147 Tuesday, November 27, 2007 10:29 AM