Strange noises on power on \ VOGONS

Strange noises on power on

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First post, by .legaCy

Posted on 2016-04-17, 01:01

.legaCy Offline

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Well i have this athlon xp that is showing some really bizarre behavior when it power on after being unpluged from AC power cord after a while
Well i did recorded one brief video so you can see and hear what happens when i power on.
https://www.youtube.com/watch?v=OJkyQQ3XapE

Build log Here

So anyone had this issue before? any advice?

Reply 1 of 4, by nforce4max

Posted on 2016-04-17, 01:10

nforce4max Offline

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Sounds like it could be the board as it sounds like it is coming from the pc speaker, I got a board that went faulty that has that issue. Sad because it was a Tyan dual socket 370 board 🙁

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Reply 2 of 4, by .legaCy

Posted on 2016-04-17, 01:24

.legaCy Offline

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nforce4max wrote:
Sounds like it could be the board as it sounds like it is coming from the pc speaker, I got a board that went faulty that has that issue. Sad because it was a Tyan dual socket 370 board 🙁

Its from the PC Speaker, but i'm starting to think that maybe is PSU fault, just to be sure i will try it with another PSU, otherwise i will try to recap the board and change some regulators.

Reply 3 of 4, by HighTreason

Posted on 2016-04-17, 05:59

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Yeah, try another PSU before anything else. The more concerning sound to me is a high pitched whistle, it's hard to tell in the video though if that isn't from some other source in the room, could just be the cathode inverter in your monitor which would be fairly normal, but if it is coming from the computer's PSU it probably isn't a good sign.

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Reply 4 of 4, by .legaCy

Posted on 2016-04-17, 18:19

.legaCy Offline

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HighTreason wrote:
Yeah, try another PSU before anything else. The more concerning sound to me is a high pitched whistle, it's hard to tell in the video though if that isn't from some other source in the room, could just be the cathode inverter in your monitor which would be fairly normal, but if it is coming from the computer's PSU it probably isn't a good sign.

Indeed this issue was being caused by a faulty PSU.
The high pitched whistle was coming from the PSU and when i replaced with another PSU in good shape it worked perfectly.
Maybe later i will disassembly the faulty psu and i will see what went wrong with it.

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