So here's my problem. I've built/had my computer for about a year and I have had no problems yet until recently. So I turn my PC off for the night and in the morning when I turn it on nothing happens my computer wont turn on, but I hear this noise COMING from the PSU. I CHECK all the wires and everything is in place, so I try another plug in cord same thing. Then I switch the PSU with another one I had and the same thing happened, a faint buzzing noise coming from the PSU. Lastly I took the PSU and HOOKED it to one of my old computers and there was no buzzing. So it must be the motherboard any suggestions on what the problem could be thanks.

I don't have the specs in front of me but here is what I remember.

450W power supply
XFX Motherboard
Geforce 9800gt
4Gigs ddr2
Pentium D Processor
80gb hard drive

Something is causing the psu to overload, therefore it will not turn on. Could be hard drive, optical drives, graphics card, keyboard, mouse, RAM, or motherboard. Disconnect optical drives and see what happens. If same, disconnect hard drive and see what happens. Then graphics card. It might even be a locked cpu or gpu fan.450 watt power supply and a 9800gt gpu. something is strained

as the previous poster said , check and then post againI took out the video card,hard drive everything but the processor and it is still making that noise and not turning on.Not looking good for the motherboard. I suspect the buzzing is an electrolytic capacitor (those cylindrical things surrounding the cpu) has gone bad. They tend to short when gone bad and sometimes they explode. Be glad the cpu has done it's job and won't fully turn on. You can put your finger on the caps to see which one is buzzing. Power off and INSPECT closely, do any look BLOATED?

Is it still under warranty?I took the motherboard out and adjusted the port where the the 24 pin thing goes then put it back in my computer and now there is no buzzing noise. I'll write back if I have any problems once i try it.Quote from: Veterium on October 09, 2009, 08:58:50 PM

...adjusted the port where the the 24 pin thing goes...