Dell Diagnostics Error Code

Question

I am working on a Dell Dimension 9150 with Windows XP.

When i pushed the power button on the computer, it would start beeping. The beeping sounded like the sound it makes when the Ram is bad. I re seeded the ram and unplugged everything and plugged it back in. When i tried turning the computer on again, it booted right up just fine. Even though it started up fine (several times) i still ran the Dell Diagnostics, in which i received this error:

CMOS Confidence Test

Error Code 4C00: 0320

Msg: CMOS failed the pattern test. Location: 1Eh, Expected: AAH, Actual: 00h

If anyone could shine some light on this error, that would be great.

Thanks

Dustin

C3PO5 · Answer

Hi

I can't say this will work but i remember somewhere i read try replacing

the onboard battery and see if you get the error message after that.

This link might help also.

http://www.dellcommunity.com/supportforums/search?submitted=true&type=message&sort_by=score&advanced=true&q=CMOS+Confidence+Test&phrase=&one_or_more=&without=&f=subject&f=body&f=attach&f=tags&page_size=10&author=&board_id=&index=public

Good Luck

DustinJNeill · Answer

I took out the button Cell Battery and tested it with my volt meter, which read around 3 Volts. I then put it back into the motherboard. After that i loaded up the Dell Diagnostics again, and ran the same test. All test passed. Thank you!

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Dell Diagnostics Error Code

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