I have a Gigabyte Z77 D3H motherboard. Itel core i7 2600K proccessor which I have overclocked to 3.7Ghz stablely. Then as normal I went to 3.8 and that is when about 4 minutes in the screen froze and then turned blue displaying something about a memory dump. I tried increasing voltage but it didn't work. The temps were fine from what I could see and online most could overclock to at least 4Ghz before any problems. I have an arctic 7 pro rev 2 cpu cooler. Can someone help me. It is my first time overclocking.