Dell Precision 220 - Manual (Page 52)

damage. If an external device (such as a printer or an external drive) gets wet, contact the manufacturer for instructions. If your computer gets wet,
perform the following steps:
1. Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their electrical outlets. Also, disconnect
any telephone or telecommunication lines from the computer.
2. Remove the computer cover .
3. Let the computer dry for at least 24 hours. Make sure that it is thoroughly dry before you proceed.
4. If you have a mini tower chassis, remove the accelerated graphics port (AGP) card brace according to the instructions in " Removing and
Replacing the AGP Card Brace ."
5. Remove all expansion cards installed in the computer except a drive controller card and video expansion card.
6. Replace the computer cover, reconnect the system to an electrical outlet, and turn it on.
If the system has power, proceed to step 7. If the system does not have power, see " Getting Help " for instructions on obtaining technical
assistance.
7. Turn off the system, disconnect it from the electrical outlet, remove the computer cover, and reinstall all expansion cards that you removed in
step 5.
8. If you have a mini tower chassis, replace the AGP card brace.
9. Replace the computer cover, and reconnect the system to an electrical outlet. Also, reconnect any telephone or telecommunication lines to
the computer.
10. Insert the Dell Precision ResourceCD into the CD-ROM drive, reboot the system, and run the System Board Devices test group in the Dell
Diagnostics .
If the tests complete successfully, your system is operating properly. If any of the tests fail, see " Getting Help " for instructions on obtaining
technical assistance.
Troubleshooting a Damaged Computer
If your computer was dropped or damaged, you should check your computer to see if it functions properly. If an external device attached to your
computer is dropped or damaged, contact the manufacturer of the device for instructions or see "
Getting Help " for information on obtaining
technical assistance from Dell. To troubleshoot a damaged computer, perform the following steps:
1. Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their electrical outlets. Also, disconnect
any telephone or telecommunication lines from the computer.
2. Remove the computer cover .
3. Check all the expansion-card connections in the computer, and reseat any loose expansion cards.
4. Verify the diskette/tape drive, hard-disk drive, and all other internal connections.
Make sure that all cables are properly connected and that all components are properly seated in their connectors and sockets.
5. Replace the computer cover , reconnect the system to an electrical outlet, and reconnect any telephone or telecommunication lines.
6. Insert the Dell Precision ResourceCD into the CD-ROM drive, and reboot the system.
7. Run the System Board Devices test group in the Dell Diagnostics .
If the tests complete successfully, your system is operating properly. If any of the tests fail, see " Getting Help " for instructions on obtaining
technical assistance.
Troubleshooting the Battery
If an error message indicates a problem with the battery or if System Setup loses the system configuration information when the computer is turned
CAUTION: Before you remove the computer cover, see " Safety First —For You and Your Computer ."
CAUTION: Before you remove the computer cover, see " Safety First —For Your and Your Computer ."
CAUTION: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or
equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions.