Quote Originally Posted by Alien Grey View Post
I think that you've got a slightly better bandwidth because you use a different OS. I never had any problems using tREF 16383T with BIOS 0902. With BIOS 0803 it was sometimes stable and the next reboot it was unstable. If I use a different CPU GTL setting it doesn't allow me to use less CPU Voltage nor does changing FSB Termination Voltage. For 4.05GHz it's 1.20V+ or BSOD at 6+ hours Prime95 Blend.


Changing from Moderate to Lighter didn't only let me use less voltage for the same performance there is also a nice temperature improvement. The core temperature dropped with 3° Celsius under full load with LinX.

These are two tests that I did to see if the dye that I'm using in my loop isn't causing problems and gunk up my rad or blocks. Both tests where done with the same room temperature of 18° Celsius. The first one is with Ai Clock Twister Moderate and the second one with Ai clock Twister Lighter.
You really found your perfect settings.. i never saw a Q9650 with only 1.10v VTT and 1.25v vNB at 450MHz FSB before..
I for myself never test my setup for more then 2+1/2 hours with Prime Custom, had never problems. So i mangaged to run my setup with 1.10v VTT too, but it crashed while i was gaming. I had to raise VTT to 1.12 and vNB a little.

Quote Originally Posted by Antineutrino View Post
My Q9650 has a VID of 1.1625 Volts but I cannot be LinX stable with a Vcpu lower than 1.42500 Volts in BIOS.... Am I missing something?



Perhaps is there more than one range where raising the voltage makes the CPU stable?

For example a 1.1625-1.27500 first range... CPU is stable with low heat.
Than it becomes instable due to increased heat...
Raising the voltage more to find a second range and so on till the maximum heat dissipable by the heatsink...

Is that true?

There is no "first and second range". The only things you have to look at, is the voltage for the CPU, which should be about 1.365v max. at load (24/7) and the temperature of the cores, which should be about 70°-75 C max. for a short peroid. But with high temperatures like this the system could get unstable.
I think you should start at the beginning. With such a low VID you should be able to run your system with 4.2Ghz at about 1.25v (full load). There is definitly something wrong in your settings.
Maybe you post your template here? Letīs take a look in it.