Computer freezing

[Nergybrahh]

I got a hyper 212 evo the other day so i decided to overclock my system, I managed to get it up to 4.4GHz stable and had it running for several hours with no problems, today when i logged on after 30 minutes the screen froze so I rebooted and the same thing happened, I took the overclock down to 4.3GHz and the same thing happened so ive now reset it to default clock speed and im seeing if it will happen again 

[GodSpoon]

Its probably not being stable with whatever voltage you gave it, can you give us details on the overclock? 

[teeejay]

IMO it was a bad overclock, did you stress tested it before the first freeze?

[pwn_intended]

What were you doing when it froze?

Also, it is common for an OC to appear to be stable for a while and then turn out not to be. Also, are you doing auto or manual voltage?

[Predrag]

That seems to be a Voltage overload.