Dell Precision NT499 User Manual page 101

Light Pattern Problem Description
A possible BIOS
failure has occurred;
the computer is in the
recovery mode.
A possible processor
failure has occurred.
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.
Suggested Resolution
• Run the BIOS Recovery utility, wait
for recovery completion, and then
restart the computer.
• If the problem persists, contact Dell
(see "Contacting Dell" on page 269).
• Reseat the processor (see "Processor"
on page 243).
• If the problem persists, contact Dell
(see "Contacting Dell" on page 269).
• If two or more memory modules are
installed, remove the modules (see
"Removing a Memory Module" on
page 160), then reinstall one module
(see "Installing a Memory Module" on
page 160) 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
"Memory" on page 157).
• If the problem persists, contact Dell
(see "Contacting Dell" on page 269).
• Reseat any installed graphics cards
(see "Cards" on page 162).
• If available, install a working graphics
card into your computer.
• If the problem persists, contact Dell
(see "Contacting Dell" on page 269).
• Reseat all power and data cables and
restart the computer.
• If the problem persists, contact Dell
(see "Contacting Dell" on page 269).
Troubleshooting Tools
101