Dell 200 owner manual Diagnostic Lights, Light Pattern Problem Description Suggested Resolution

Troubleshooting Tools

Diagnostic Lights

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.

To help you troubleshoot a problem, your computer has four lights labeled "1," "2," "3," and "4" on the front panel (see page 57). When the computer starts normally, the lights flash. If the computer malfunctions, the color and sequence of the lights identify the problem. After the computer completes POST, all four lights turn off before booting to the operating system.

Light Pattern	Problem Description	Suggested Resolution
	The computer is in a normal "off"	Plug the computer into a working
	condition or a possible pre-BIOS failure	electrical outlet and press the power
	has occurred.	button.

A possible processor failure has occurred. Contact Dell (see page 111).

Memory modules are detected, but a memory failure has occurred.

•If you have two or more memory modules installed, remove the modules, reinstall one module (see page 66), and then restart the computer. If the computer starts normally, reinstall an additional module. Continue until you have identified a faulty module or reinstalled all modules without error.

•If available, install properly working memory of the same type into your computer (see page 65).

•If the problem persists, contact Dell (see page 111).

Troubleshooting Tools

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