Dell OptiPlex GX620 Guide De Référence Rapide page 37

Light Pattern Problem Description
Memory modules are detected, but a
memory failure has occurred.
A possible graphics card failure has
occurred.
A possible floppy or hard drive failure has
occurred.
A possible USB failure has occurred.
Suggested Resolution
• If you have one memory module
installed, reinstall it and restart the
computer. For information on
reinstalling memory modules, see your
online User's Guide.
• If you have two or more memory
modules installed, remove the modules,
reinstall one module, and then restart
the computer. If the computer starts
normally, reinstall an additional module.
Continue until you have identified a
faulty module or reinstalled all modules
without error.
• If available, install properly working
memory of the same type into your
computer.
• If the problem persists, contact Dell. For
information on contacting Dell, see your
online User's Guide.
• If the computer has a graphics card,
remove the card, reinstall it, 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.
For information on contacting Dell, see
your online User's Guide.
Reseat all power and data cables and
restart the computer.
Reinstall all USB devices, check cable
connections, and then restart the
computer.
Quick Reference Guide
37