Newly Built PC crashing !!!

[chrisher]

just built my pc about a month ago and it seems to crash at the most once per day (some days not at all IF i'm lucky). the screen just freezes and i can't power it off or do anything, i have to click restart on the case, can someone help please !!!!! the specs are:

CPU: i5 3570k

Graphics Card: GeForce GTX 660Ti

Hard Drive: 1TB

RAM: 2x4 Corsair Vengeance Ram

Cooler : Coolmaster Hyper 212 Evo

Power Supply: Corsair 650 Watt

DirectX 11 up-to-date





Please help !!!!

 

[EzioAs]

Are you overclocking the CPU, RAM or GPU? Check in your BIOS the CPU and RAM settings.

 

[chrisher]

just checked and have lowered the clocking settings a bit in the Bios and the pre installed GPU Tweak so will report if it crashes again !