Originally Posted by mdemons12
I have the same sort of problem but it was running stable @ 4.3GHz so I put it to 4.5 then rebooted and then tried to run prime95 and it froze, pressed reset, same thing please help.
I have also tried to clear the cmos and it does not help. Does thins sound like a new i5 2500k for me or can i somehow fix this.
You probably didn't have enough vcore to run at 4.5GHz. Also, depending on your board, PLL Overvolt tends to cause the cold boot bug (which is what this thread is talking about).
When you first turn the computer on, and it turns right back off after about 2 seconds, but then turns back on tends to be a normal thing and is not a problem exactly.
I have never personally KILLED a CPU, overclocking or not. Well, I take that back, there was this one time with an Athlon XP where the fire department was called in...but we don't need to go there.....
Point being, I very highly doubt you killed the CPU. They're EXTREMELY tough to kill, even with a ton of voltage, heat, and other abuse.