Solid High Pitched Whine from Mother Board

Microsoft Windows xp professional w/serv...
July 22, 2010 at 18:55:50
Specs: Windows XP
Well I will try to include every detail possible for the best trouble shooting.

I started to have some problems with my computer about 1-2 weeks ago when about once every couple of days it would freeze on me when I was not using it. One time it froze in the middle of working on it.

After that I noticed that every once and a while when I started the computer nothing would show up on my monitor. I have a dual monitor video card in the computer and Ive tried both slots with just a single monitor in it without any luck.

After a while the monitor wouldn't turn on at all when I started the computer so I took the cpu outside and sprayed it out with a air compressor which I made sure to keep it far enough away not to damage anything.

After spraying it out I plugged it all back in and it wouldn't even start up. I noticed that the light that is in the psu would flash on for a split second and then turn off.

So next thing I tried is to take the ram cards out and make sure there was nothing clogging any slots and same problem. Next I tried to take 2 of the 4 slots out and it would start up but it started this really loud high pitched whine that was a solid sound. I tried to change the ram cards thinking one might be bad but it didnt matter what I did.

I listened to the sound and it seems like its coming from the mother board. Also I took out all 4 ram cards to see if it would beep saying it cant find ram cards but its the same solid high pitched whine.

I don't have any extra power supplies to try and switch them but if it comes to the point of not able to try anything else I will go buy another power supply.

Thanks everyone in advance!

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July 22, 2010 at 19:49:25
"I listened to the sound and it seems like its coming from the mother board"

Not good enough. You have to KNOW where the sound is coming from before you can fix whatever the problem is. I don't know of anything on a board that can make noise other than a fan, the piezo speaker or possibly a bad capacitor. Make a "stethoscope" & see if you can pinpont the source of the noise.

Squealing Capacitors

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July 22, 2010 at 22:08:22
"Well I will try to include every detail possible for the best trouble shooting".

How about starting by providing some specs on your hardware. Either motherboard model or if an OEM pre-built computer the brand and model.

Did you read the information on the screen where you registered for this site? There is a scan tool there for that purpose.

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July 23, 2010 at 06:54:12
well I cant really do that since I cant get that computer to even start up.I have to use another persons computers to post on here. I will write down the specs for the computer and post them.

Also I can only put my ear so close to the computer before it really starts to hurt them. Mainly I just got close to the psu and it wasn't that loud and then I moved towards the center of the mother board and it was much louder. I will try to listen closer to it and pin point it as best as I can.

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July 23, 2010 at 07:18:45
Try using a cardboard tube from paper towel, gift wrap, etc. Anything tubular and non metallic. Place on end to ear and the other to the computer. Take care to not insert into moving fan blades.

If I had to guess, I would say your power supply may be defective. Did you blow it out from both ends too?

How old is the computer?

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