Dell Dimension 3000 Owner's Manual page 34

Light Pattern Problem Description
A possible graphics card failure has
occurred.
A B C D
A possible floppy or hard drive failure
has occurred.
A B C D
A possible USB failure has occurred.
A B C D
Memory modules are detected, but a
memory configuration or compatibility
error exists.
A B C D
= yellow
= green
= off
34
Advanced Troubleshooting
Suggested Resolution
• If the computer has a graphics card,
remove the card, reinstall it (see
page 56), and then restart the
computer.
• If the problem still exists, install a
graphics card that you know works and
restart the computer.
• If the problem persists or the
computer has integrated graphics,
contact Dell (see page 89).
Reseat all power and data cables and
restart the computer.
Reinstall all USB devices, check cable
connections, and then restart the
computer.
• Ensure that no special memory
module/memory connector placement
requirements exist (see page 53).
• Verify that the memory modules that
you are installing are compatible with
your computer (see page 53).
• If the problem persists, contact Dell
(see page 89).