Woke Up, Turned On PC, Monitor Won't Wake Up

[ta2]

My system isn't turning on for some reason. I turn it on and hear the GPU fan spinning on maximum (it's the only fan that would do this pre-POST as the CPU has a H50 cooler) and the monitor doesn't turn on.

I've tried:
1. Resetting the CMOS
2. Leaving only 1 stick of RAM in

Any ideas? Just got back from my parents for Christmas and now this. :'(

[GoNz0]

whip the bios battery out for half an hour wiht the mains out, failing that rmeove everything and boot with a reseated video card and cpu + ram only

[Mithrandir]

Check the connections between pc and tft. Pull out and plug in again.

[ta2]

Ok I think I didn't actually reset the CMOS properly the first time. This time I turned it on and it turned off immediately, turned on again, turned off immediately, then back in the same situation as before.

The GPU fan is on 100%, it's definitely not a problem with the monitor. I'll try taking everything else out.

[ta2]

Ok I reset the CMOS again, now it's just the CPU, Mobo, Memory and GFX plugged in. Same result.

So something's physically broken I guess? What do you think it is, GFX or CPU?

[vinnyT]

It's more far likely to be the gpu (esp. as the fan is at 100% on) than the cpu, though these can, and do, fail occasionally. Of course it may not be either of the cpu or gpu, the frustrations of being a pc owner can,at times, be limitless.

If you can try a diff. gpu, from a friends pc if you do not have a spare.

[ta2]

It's more likely to be the gpu (esp. as the fan is at 100% on) than the cpu, though these can, and do, fail occasionally.

If you can try a diff. gpu, from a friends pc if you do not have a spare.

If it were the CPU that had burnt out, wouldn't the GPU fan still be on 100% as the mobo wouldn't be able to POST and tell it the temperature/fan speed, or are they self-regulating?

Edit: Will hopefully have a spare GPU tomorrow that I can try.

[GoNz0]

very very rare a cpu will fail

[Behemoth]

Could be the mobo, might be worth trying your parts in someone elses PC just makesure that the likes of the ram, gfx card and CPU will at least all post.

[GoNz0]

so long as someone else understands you may blow there pc up, personally i would never do that.

[ta2]

Thanks guys, fixed it.... was the GPU! An old 8800GT out of warranty (in fact, BFG have gone bust anyway). Wanted to get a new one anyway, now's my chance.