Hissing, whining desktop PSU

Stover

A week ago, my 3 year old motherboard goes on an acid trip. Throws CMOS errors when it even bothers to post, etc.

I buy and a new motherboard, CPU, RAM. I'm going from an old Athlon X2 64 something-or-other to an Intel i7. Antec's website has a power supply needs calculator, which recommended a 435 watt PSU. Mine was rated at 550 (3 years ago).

New equipment was installed today in the old box, with the old equipment (cards, HDDs, etc.)

The power supply began to make strange little hissing noises moments after the first power up. The noises are semi-intermittent, occasionally louder, occasionally softer.

The only thing that I can think of was that while cleaning out the case with a can of compressed air, I shot the air into the PSU's fan outlet. Could this have caused any problems?

Thanks for your help.

Buttcleft

I would say ditch it.

power supply making noise is trouble, and not worth the risk to the rest of your components.

Stover

Should I spend more to get a larger supply?

Taranis

You should get a new PSU immediately. Stop using your computer until then.

You might as well get a bigger one now so you won't have to next upgrade.

Stover

Fiiiine. Making me go spend money and stuff. Jerks.

I've purchased and installed a new power supply. No noises, everything seems to run fine.

Close away.

Satsumomo

Yeah, that PSU is most probably what killed your previous motherboard.