Asrock P67 Extreme4 UEFI & Drivers thread [Extreme6 & Pro3 owners welcome]

[blacksun1942]

- Enable PLL overvoltage
- Set LLC level 2
- Change PLL to 1.85v
- Change VCCSA to 1v
- VTT doesn't need to be that high
- Dial in 1.36v (fixed mode)

Now try booting 46x multi. You may just have a bum 2500k.

As for the other issue, try a different SATA cable and/or optical drive. Slow disc reading is ually the cause of a dirty laser, dying drive, or a bad cable.

Thanks for the advice.
VTT was on "Auto"; I assume it was set that high so that it would stay within 0.5v of the DRAM (1.635v)....wouldn't it be "bad" if I manually changed it to be lower? Also does "Spread Spectrum" matter?

EDIT:
Tried your recommendations; black screen after POST @ 46x.
45x with the same settings boots into Windows; testing stability now...
EDIT: 45x with above recommended settings eventually failed in Prime95 blend...