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Question

Dell C521 no screen image, whirring noise. and yellow power

by Dec 30, 2011 8:54AM PST
Any ideas on how to troubleshoot this problem? The desktop has been out of warranty for several years. Last night I shut off the power to the PC before it totally shut itself out and today it will not start. The PC is running XP, has a relatively new hard drive.

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2 Posts
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Answer
Possible PSU bad
by Jan 3, 2012 2:36AM PST

Yellow LED indicates possible bad PSU. replace the PSU with similar type and make it larger wattage if you like. I make no effect to provide more help until you do this. If this has happened before and considering the age, it's that time to replace.

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Answer
How to test some PSUs
by Forum moderator Jan 3, 2012 2:42AM PST

If I don't have a PSU handy I'll pull out my Volt Meter to see what the legs read. If they are not working I try the old GREEN WIRE PSU TEST (found at google).
Bob

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