How to set up GTL Ref Values for 45nm & 65nm

[Pisklink]

So say I was aiming around 0.95v GTLREF at 1.60v vTT, I would need to reduce the Multiplier down to 0.59x or decrease the voltage by 0.12v or -120mV to get back to that point. This is just an imaginary value and generally you wouldn't need 1.60v vTT unless you were using over 1.60v vCore and 1.60v vNB.

Are you saying that VTT should be as high as the lowest setting. In my case for example, I'm using the following in bios settings:

- 460 x 9.5 = 4.3Ghz
- CPU 1.4v
- CPU PLL 1.58v
- VTT 1.3v
- vNB 1.55v

With these settings the CPU was stable for 9 hours in othos. But when I increased RAM speed to 1840Mhz I thought it needs more vNB and increased it to 1.57v and 1.61v but now it fails after an hour. Could this have something to do with a low VTT?