Dell Precision T7400 (Late 2007) - Manual (Page 27)

Quick Reference Guide 27
Memory modules
are detected, but
a memory failure
has occurred. • If two or more memory modules are
installed, remove the modules
(see "Memory" in your User’s Guide),
reinstall one module, and then restart
the computer. If the computer starts
normally, continue to install additional
memory modules (one at a time) until
you have identified a faulty module or
reinstalled all modules without error.
• If available, install working memory of
the same type into your computer
(see "Memory" in your User’s Guide).
• If the problem persists, contact Dell
(see "Contacting Dell" in your
User’s Guide).
A possible graphics
card failure has
occurred. • Reseat any installed graphics cards
(see "Cards" in your User’s Guide).
• If available, install a working graphics
card into your computer.
• If the problem persists, contact Dell
(see "Contacting Dell" in your
User’s Guide).
A possible floppy or
hard drive failure has
occurred. • Reseat all power and data cables and
restart the computer.
• If the problem persists, contact Dell
(see "Contacting Dell" in your
User’s Guide).
A possible USB failure
has occurred. • Reinstall all USB devices, check cable
connections, and then restart the
computer.
• If the problem persists, contact Dell
(see "Contacting Dell" in your
User’s Guide).
Light Pattern Problem Description Suggested Resolution