Dell GX240 manual Back Panel Lights

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Fr o n t Pa n e l L i g h t C o d e s

Solid green power light with	The monitor or the	See “Video and Monitor
no beep code and no video	graphics card may be	Problems” If the monitor is
during POST	faulty.	operating properly and is
		correctly connected, see
		“Getting Help” for
		instructions on obtaining
		technical assistance.
Solid green power light and	An integrated system	See “Getting Help” for
no beep code but the	board device may be	instructions on obtaining
computer locks up during	faulty.	technical assistance.
POST

Back Panel Lights

When you turn on your computer, it performs a power-on self-test (POST), which is a series of self-diagnostic checks. A successful POST ends with a single beep that signifies the start of normal operation. If the computer fails to emit the single beep or appears to stop responding during POST, a series of lights located at the rear of the computer can help you understand which POST test failed or why the computer stopped responding. These lights indicate problems encountered during POST only, not during normal operation.

CAUTION: Before servicing any components inside your computer, see “Safety First—For You and Your Computer.”

The light patterns described in the following table can help you determine what to do to resolve the problem. If a problem resolution requires you to open the computer chassis, see “Finding Solutions” for procedures you need to complete prior to performing the suggested resolution. If the problem persists after you perform the suggested problem resolution(s), contact Dell for further help.

The following table lists the codes for the back panel diagnostic lights, gives their probable causes, and offers suggested corrective actions. The light patterns are shown as they appear on the back of the desktop chassis (vertical position).

196

Solving Problems