Computer powers on then off straight away
I've recently built a new rig, specs follow:
Intel i7 920
Asus P6T deluxe V2
3GB 1600 DDR3
2 x standard 500GB sata drives
ASUS D2X soundcard.
Has been working fine at clock speed of 3.2GHZ for days now, suddenly it powered off by itself. It keeps trying to power on, as in everything lights up and fans kick in but the after half a second it goes off again. Then again. etc. I've had a bit of a mess around, and if I pull out the secondary MoBo power plug (4 pin) everything comes on and stays on, although I get no display on at all so I don't know if there are any error messages. Once the plug goes back in the on/off cycle starts again. I've cleared the CMOS which did nothing, and I've tested the graphics card which is working fine. I have a spare 600W PSU which I've tried but I can't get it to work at all with that, not enough power! I was wondering if anyone can make any suggestions? Should 700W be enough? Figured if it was the board or chip I'd get some sort of error message or beep code at least. I'm going to try removing the RAM and see if that works. Will post back. Thanks in the mean time for any help!