Dell H7228 manual Dell Diagnostics

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

Light Pattern	Problem Description	Suggested Resolution
	Memory modules are detected, but a	• Ensure that there are no special
	memory configuration or compatibility	memory module/memory
A B C D	error exists.	connector placement requirements
		(see page 68).
		• Verify that the memory modules
		that you are installing are
		compatible with your computer
		(see page 68).
		• If the problem persists, contact
		Dell (see page 83).
	Other failure has occurred.	• Ensure that the cables are properly
		connected from the hard drive, CD
A B C D		drive, and DVD drive to the system
		board (see page 61).
		• If the problem persists, contact
		Dell (see page 83).
	The computer is in a normal operating	None.
	condition after POST.

A B C D

= yellow

= green

= off

Dell Diagnostics

If you experience a problem with your computer, perform the checks in "Solving Problems" on page 23 and run the Dell Diagnostics before you contact Dell for technical assistance. Running the Dell Diagnostics may help you resolve the problem without contacting Dell. If you do contact Dell, the test results can provide important information for Dell's service and support personnel.

The Dell Diagnostics allows you to:

•Perform express, extended, or custom tests on one or all devices

•Select tests based on a symptom of the problem you are having

•Choose how many times a test is run

•Display test results

•Suspend testing if an error is detected

•Access online help information that describes the tests and devices

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Advanced Troubleshooting