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5-6 Dell Dimension 900 System Reference and Troubleshooting Guide
5. Check the DIMMs and DIMM sockets for broken tabs and damaged connectors.
If a module is damaged, replace it. If a DIMM socket is damaged, see Chapter 6,
“Getting Help,” for instructions on obtaining technical assistance.
6. Reinstall the DIMMs as described in “Installing a DIMM” in Chapter 2.
7. Replace the expansion cards and the riser-board bracket.
8. Replace the computer cover, reconnect the system to an electrical outlet, and
turn on the system.
9. Enter the system setup program as described in Appendix B, “System Setup
Program,” and verify 1st Bank, 2nd Bank, and To t a l Memory on the System
Information screen.
If the problem still exists and you have a single DIMM, repeat steps 1 through 5,
installing the DIMM in a different socket. If you have more than one DIMM, try
installing one at a time.
10. If the problem persists, see Chapter 6, “Getting Help,” for instructions on obtain-
ing technical assistance.
If Your Computer Gets Wet
Liquids from spills, splashes, and excessive humidity can damage your computer. If
an external device (such as a printer) gets wet, contact the manufacturer of that
device for instructions. If your computer gets wet, perform the following steps:
1. Immediately unplug the computer from the electrical outlet.
2. Remove the computer cover as described in “Removing and Replacing the
Computer Cover” in Chapter 2.
3. Let the computer dry for at least 24 hours.
NOTICE: Make sure that the computer is thoroughly dry before proceeding.
4. Remove the riser-board bracket as described in “Removing and Replacing the
Riser-Board Bracket” in Chapter 2.
5. Remove all expansion cards installed in the computer (see “Removing Expansion
Cards” in Chapter 2), and replace the riser-board bracket.
6. Replace the computer cover, reconnect the system to an electrical outlet, and
turn on the computer system.
If the system does not have power, see Chapter 6, “Getting Help,” for instruc-
tions on obtaining technical assistance.
7. Turn off the system, and disconnect it from the electrical outlet.
8. Remove the computer cover.