PC Won't boot

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Joined
22 Apr 2006
Posts
313
I'm running into a few problems with my PC.
Specs
E6300 w/ Tuniq Tower
Gigabyte DS3 (Rev 1)
2GB Geil Ram 6400 4-4-4-12
X1900Xt 512mb w/ Zalman VF-900 cu
Lian Li-PC 7+ w/ 2 Yate Loon DS12 fans
250 GB Seagate 7200.10
Creative X-fi Xtreme Music
Enermax Libertry 500W

I bought this PC last august and until about a couple of weeks ago I was running this with the E6300 at stock. When Supreme Commander came out I upgraded to a Tuniq Tower so I could overclock my PC. I quickly got it to 400 FSB on 1.375v(ish) volts @ 2800mhz and it stayed stable until last weekend. Temps never got very high with the Tuniq tower, generally staying below 50 degrees, despite running two cores of FAH all the time.

Last Friday I changed the monitor on my PC for a smaller 17" one, as my bro was taking my 19" one. The new monitor had a VGA connection and i used a VGA to DVI converter, and that's the only difference I can think of.

Anyway, i changed monitors while the PC was still on and when i plugged the new one in I found my PC has crashed and wouldn't boot. It turned on but no fans spun. I reset the CMOS and everything worked again.

I re overclocked my PC to previous settings, but after awhile it crashed again and wouldn't boot. I wasn't doing anything stressful when this happened it just did it on desktop. I reset CMOS and started overclocking PC slowly, raising FSB by 10mhz a day. Again it crashed after awhile, while temps weren't especially high. I reset again and stayed on stock for a bit. Again after a while it wouldn't boot when i turned it on. It powered it up and all the fans spun, but no beep and nothing on screen. The last time is did this it wasn't even turned on. I turned it of at night at the next day it wouldn't boot.

It's now got to the point where it starts turning on of pretty much immiediatly. I haven't managed to boot into windows or even get into the BIOS, it just crashes the moment i turn it on.

So any idea what may be malfunctioning? I dont think it's the CPU, since it never overheated or went beyond an unreasonable temperature (was high when I had it at stock with my AF7 Pro). I thought it might be the motherboard, but since it turns on and of so soon I thought it could be my PSU malfunctioning.

Any idea what I should do? Looks like i'm going to have to RMA something, I just don't know what yet.
Thanks
 
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