THis is so wierd you guys when my computer starts up the power supply makes a 15-25 secound whining sound, very high pitched, I think it's the fan, I need help on this on!

Thanx

Fans make whirling sounds, high to very high pitch are the capacitors,
sorry buddy your ps is going bye bye

I'd have to agree. When I first built my system I thought a good PSU didn't matter cause it was just power. But I recall that sound, it did it once and then it died... completely. Now it's on a shelf jealous of the working Antec True480.

yes but mine only does it sometimes, and when it does that it's only at startup, is their any danger to my system?( the power supplie is still working)

If it has surge and inrush protection you might be ok but i wouldn't trust a faulty PSU, your whole system might fry
A cheap "good working one" is around $40

>> Change it!!! <<

thanx for all the help you guys, it's really appreaciated

u could also give it a look see maybe its dirty i dont know why no one told u to check it out . i guess everyone in here has bags of money , it could just b some dirt and a good cleaning will make it like new

Would be nice if it was, but with what was said,i dont think dust woulkd make any PS whine high pitch, we all have seen and use dirty ps
But hey... you can still use it on your bench to test stuff right

Try uplugging the AC Cord and hitting the power button a bunch of times to discharge the capicators. Then plug it back in and see if it still does it. Perhaps it needed "recharged" more likely, its dying. Sorry man.

yeah...mine's been doing that for about 2 months now...it was a really high-pitched noise, and it goes off after i turn on the pc, and about 20 minutes into the os, it starts doing it again.

my psu killed my mobo today...i'm really sad.

get a new one asap!