Dell T3400 manual 101

Light Pattern Problem Description Suggested Resolution

A possible BIOS failure has occurred; the computer is in the recovery mode.

•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).

A possible processor	• Reseat the processor (see "Processor"
failure has occurred.	on page 243).
	• If the problem persists, contact Dell
	(see "Contacting Dell" on page 269).
Memory modules are	• If two or more memory modules are
detected, but a	installed, remove the modules (see
memory failure has	"Removing a Memory Module" on
occurred.	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).
A possible graphics	• Reseat any installed graphics cards
card failure has	(see "Cards" on page 162).
occurred.	• If available, install a working graphics
	card into your computer.
	• If the problem persists, contact Dell
	(see "Contacting Dell" on page 269).
A possible floppy or	• Reseat all power and data cables and
hard drive failure has	restart the computer.
occurred.	• If the problem persists, contact Dell
	(see "Contacting Dell" on page 269).

Troubleshooting Tools

101