Advanced Troubleshooting; Diagnostic Lights - Dell Dimension T2310 Owner's Manual

Advanced Troubleshooting

Diagnostic Lights

To help you troubleshoot a problem, your computer has four lights labeled "A," "B," "C," and "D"
(see page 65) on the back panel. The lights can be yellow or green. When the computer starts
normally, the lights flash. After the computer starts, all four lights display solid green. If the
computer malfunctions, the color and sequence of the lights identify the problem.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions on
page 9.
Light Pattern Problem Description
The computer is in a normal off condition
or a possible pre-BIOS failure has
occurred.
A B C D
A possible processor failure has occurred. Reinstall the processor (see page 93) and
A B C D
Memory modules are detected, but a
memory failure has occurred.
A B C D
= yellow
= green
= off
Suggested Resolution
Verify that the computer is plugged into a
working electrical outlet and that you
have pressed the power button.
restart the computer.
Reinstall all memory modules (see
1
page 73).
Ensure that all the connector tabs are
2
locked.
Restart the computer.
3
If the problem persists, contact Dell
4
(see page 112).
Advanced Troubleshooting
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