Dell 755 manual Panel, 217

I/O Panel

Removing the I/O Panel

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.

1Follow the procedures in "Before You Begin" on page 21.

2Remove the computer cover (see "Removing the Computer Cover" on page 168).

3Remove the optical drive and floppy drive from the drive bays, if installed (see "Drives" on page 195).

4Remove the hard drive (see "Removing a Hard Drive" on page 197).

5Remove the processor heat sink (see "Processor" on page 213).

NOTE: You’ll also have to remove the heat sink base.

6Remove the system board.

•Unscrew all retaining screws on the system board (see "Small Form Factor System Board Screws" on page 310).

•Gently lift the system board out of the chassis.

7Remove the front fan:

Press the tab that secures the fan to the interior base of the computer and lift the fan from the computer; set the fan aside in the chassis.

8Remove cables from the IO panel.

Note the routing of the cables as you lay them aside, so that you can replace them correctly.

I/O Panel

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