"ASUS P5Q Deluxe discussion".

[PiolhoSM]

Depends what VTT your using try VTT x 0.67 And see if it stays in 0.7-1.0
I belive that it still safe for usage

0/2 & 1/3 have nothing to do with the individual cores. They denote BCCLK 0/2 & 1/3. Raising it to 0.67x is fine just keep your Vtt under 1.4v. You want to aim for a target Vref of between around 0.8 - 1.0v.

GTL Ref (the multiplier eg 0.67x) x Vtt = Vref

VTT from CPU or Northbridge? if its from ...

northbridge:

Overclocked:
1.26 x 0.63 = 0.7938
1.26 x 0.67 = 0.8442

Default:
1.20 x 0.63 = 0.756
1.20 x 0.67 = 0.804

CPU:

Overclocked:
1.3625 x 0.63 = 0.858375
1.3625 x 0.67 = 0.912875

Default:
1.325 x 0.63 = 0.83475
1.325 x 0.67 = 0.88775

i will search more about this... Thank you ..again!