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7-12 Installation and Troubleshooting Guide

Troubleshooting a Wet Computer

Liquid spills, splashes, and excessive humidity can cause damage to the system. If an
external device (such as a printer or an external drive) gets wet, contact the device
manufacturer for instructions. If the computer gets wet, complete the following
steps.
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety
instructions at the front of this guide.
1.
Turn off the system, including any attached peripherals, and disconnect the sys-
tem from the electrical outlet. Remove the computer cover. See "Removing the
Computer Cover," earlier in this chapter.
2.
Let the computer dry for at least 24 hours.
Make sure that it is thoroughly dry before proceeding.
3.
Remove all expansion cards installed in the computer.
See "Removing an Expansion Card," in Chapter 8.
4.
Replace the computer cover, reconnect the system to the electrical outlet, and
turn on the system.
Does the system have power?
Yes. Go to step 6.
No. See Chapter 10, "Getting Help," for instructions on obtaining technical
assistance.
5.
Turn off the system, disconnect it from the electrical outlet, remove the computer
cover, and reinstall all expansion cards you removed in step 4.
See "Installing an Expansion Card," in Chapter 8.
6.
Replace the computer cover, and reconnect the system to the electrical outlet.
7 .
Run the System Set test group in the Dell Diagnostics.
See Chapter 5, "Running the Dell Diagnostics."
Did the tests run successfully?
Yes. The system is operating properly.
No. See Chapter 10, "Getting Help," for instructions on obtaining technical
assistance.

Troubleshooting a Damaged Computer

If the computer was dropped or damaged while being moved, you should check the
computer to see if it functions properly. If an external device attached to the computer
is dropped or damaged, contact the manufacturer of the device for information on