Newly upgrade homebuilt pc booting and restarting over and over

Vleisy

Reputable
May 30, 2014
4
0
4,510
HI guys

I've had my homebuilt pc for about 2 years now without any major problems but i've just added an H80i cpu cooler and a couple of case fans to my build. When I turn it on, the fans all run and after 2 seconds or so, it restarts and gets stuck in the cycle again. I'm really at my wits end as to what to do. Any help would be greatly appreciated.

PC specs:
- Operating system: Windows 7 Ultimate (64 bit)
- CPU: Intel 3570k
- Motherboard:Gigabyte GA-Z77-D3H
- Memory: 2 x 4gb (Corsair vengeance)
- GPU: 7870 MSI Twin Frozr III
- PSU: 650W OCZ ZS

Any questions, just ask.
 

Vleisy

Reputable
May 30, 2014
4
0
4,510
I've taken my pc apart and now just have the cpu with stock cooler, psu and motherboard hooked up. Same result. I'm guessing it's either a faulty motherboard or psu. I'm leaning more towards the motherboard as the culprit though.