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Old 12th October 2006, 07:51 AM   #1
preiter is offline preiter  United States
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Join Date: May 2006
Default My computer is whiney

I just rebuilt my computer, new motherboard, CPU and video card.

Now it's making a really annoying high pitched whine. It sounds a lot like the whine that CRT monitors and televisions make that most people can't seem to hear, but drives me batty. I think in CRTs it's the flyback transformer that does it.

I think it's the power supply. It's an Antec Truepower 2.0 450W. The thing is, I was using this power supply before and it never made this noise. But the new video card draws a whole lot more power than the old one. Nvidia recommends a minimum 450W power supply for this card.

So could running the power supply closer to its limit cause it to emit a high pitched noise? Is it time to buy a new power supply? It seems to be around 8 KHz, anyone know what a typical switching frequency for a SMPS is?
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Old 12th October 2006, 08:19 AM   #2
Nordic is offline Nordic  South Africa
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Leave it runnnig and you'll probably notice your 3V and 5V lines are nowhere close to their optimal voltages...

I just have a little 7800gt, and its killing my 400W PSU, I'm afraid these days 600W to 1kW is the PSU order of the day...
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Old 12th October 2006, 12:04 PM   #3
m0rb0 is offline m0rb0  Australia
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hiya
listenen carefully to the fan on your new heatsink!
that sounds like the only new fan you put into it?
new hdd?
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