Dell C0931 manual C D, Diagnostic Lights

w w w . d e l l . c o m s u p p o r t . d e l l . c o m

Power Light	Hard-Drive	Problem Description	Suggested Resolution
	Light
Solid green power	N/A	The monitor or the graphics card	Check the diagnostic lights to see if
light and no beep		may be faulty or incorrectly	the specific problem is identified.
code and no video		installed.	See "Video and Monitor Problems"
during POST			in your User’s Guide.
Solid green power	N/A	An integrated system board device	Check the diagnostic lights to see if
light and no beep		may be faulty.	the specific problem is identified. If
code, but the			the problem is not identified,
computer locks			contact Dell for technical
up during POST			assistance.

Diagnostic Lights

To help you troubleshoot a problem, your computer is equipped with four lights labeled "A," "B," "C," and "D." Diagnostic lights are located on the back of the mini-tower computer and on the front of the desktop computer. When the computer starts normally, the lights flash. After the computer starts, all four lights will display solid green. If the computer malfunctions, the color and sequence of the lights identify the problem.

Light Pattern	Problem Description	Suggested Resolution
	A possible microprocessor failure has	Reinstall the microprocessor and restart the
	occurred.	computer. See your User’s Guide for
A B C D		information on how to reinstall the
		microprocessor for your computer.
	Memory modules are detected, but a memory	1 Remove and reinstall all memory modules.
	failure has occurred.	Ensure that all the connector tabs are
A B C D		locked. For optimal performance, install
		the DIMMs in pairs (1 and 2 and 3 and 4).
		2 Restart the computer.

= y e l l o w

= g r e e n

= o f f

28

Setup and Quick Reference Guid e