New build question

[Bluntablo]

My buddy just built a new PC.

ASUS P7P55dPro
750w PSU
4GB Ram
Geforce 240 Video.

He hooked everything up and powered it on, it booted up and the bios came up. about 1 min after boot up the whole PC just shuts off.

PSU, Mobo, or something potentially connected wrong?

Thanks
B

 

[gwarren007]

HS not seated correctly.

 

[CanesVenetici]

I'll second gwarren, reseat the heatsink. Chip runs till it overheats and shuts the system down...

 

[Bluntablo]

That was it, thanks man