whats the general rule of thumb for GTLREF? 63% for dual core and 67% for quad? Any other settings i should do for an E8400? Just asking cuz I was getting some random blue screens the past few days and want to bump up a few voltages aside from Vcore which is at 1.325. So far i set the GTLREF downt to 63 from 67, and bumped up the MCH to 1.33 and the ICHIO to 1.6. Any other tweaks I should try?