I seem to have a problem O/Cing my 1200, I can't get it stable over 1260. The highest I,ve had it was around 1330, I change the external clock frec. in the bios then save and restart but it won't reboot the power is on, fans run but won't start and monitor won't turn on, I usually have to wait a min then turn the power off then on again. I have the Vcore at 1.8v now but had it at 1.85v, my temp stays under 45C. WTF do I do next? I would like it to run about 1350 to 1400, and again my temps are fine I just can't get it stable anything above 1300 it doesn't like to restart. And my VIO1 andVIO are at default 2.7v/3.30v now they were at 2.8v/3.45v.