Dell OptiPlex 755 - Manual (Page 68)

68
Quick Reference Guide
A possible graphics card failure
has occurred. • Reseat any installed graphics
cards (see the "Cards"
information for your system).
• If available, install a working
graphics card into your
computer.
• If the problem persists,
contact Dell (see "Contacting
Dell" in the User’s Guide).
A possible floppy drive or hard
drive failure has occurred. Reseat all power and data cables.
A possible USB failure has
occurred. Reinstall all USB devices and
check all cable connections.
No memory modules are
detected. • If two or more memory
modules are installed, remove
the modules (see "Removing
Memory" in the
User’s Guide),
then reinstall one module (see
"Installing Memory" in the
User’s Guide) and 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 "Installing
Memory" in the
User’s Guide).
• If the problem persists,
contact Dell (see "Contacting
Dell" in the
User’s Guide).
Power Light Problem Description Suggested Resolution