Oct 3, 2012
I finally decided to take the plunge and build a new pc from scratch...well almost (I bought a bundle that included an overclocked cpu by the company I bought from). This company was Overclockers UK.

So I powered the new pc on when I had completed and it seemed to be working fine and I checked the cpu temps and clock speeds to see that everything was okay. I did this through the bios as there was no OS installed yet. I managed to look at these details for about 30 seconds and then all of a sudden the PC turned off and now every time I press the power on the lights and fans come on momentarily and everything switches off again after a second or less. This has happened every time since the original power on.

I've tried a variety of things to try and fix the problem.
- Trying the PSU with another pc and that seems to be fine.
- Checking everything is plugged in correctly at least 3 or 4 times now.
- Checking there's nothing short circuiting on the motherboard.
- Clearing the CMOS
- Trying with 1 stick of RAM
- Reseating the CPU cooler

Short of pulling everything out and breadboarding it I don't know what else to do.

Any advice would be really helpful! Cheers.

i5 3570k at 4.4ghz
8gb ram
gigabyte mobo - will give more details if required
gtx 650ti