Q6600 Prime95 not blend stable @ 3.24GHz

[KillerDr3w]

Hi Folks,

I have a Abit QuadGT, Q6600 and 8Gb (4x2Gb) of Corsair Dominator PC-8500 memory, I am currently running on these settings:

360x9 - 3.24GHz
1:1.50 DDR2 - 1080
CPU Core Voltage VID - 1.4875v
DDR2 - 2.2v
CPU VTT - 1.35v
MCH - 1.35v
ICH - 1.05v
ICHIO - 1.5v

Temperature isn't an issue and mu TRUE and 120cm Sharkoon fan is keeping the CPU below 40 at all times (19 on idle, but the heating in the house is broken )

This config passes Prime95 small FFT's, but fails with the blend tests after a few minutes.

Any ideas where to go next?

I was wonding if I should reduce the CPU Core VID and up the CPU VTT - what would a max-safe voltage be for the CPU VTT?

The fact it fails on blend tests leads me to think I might need to up the MCH too, again whats a max-safe voltage for that?

Thanks!

kD.

 

[cje]

Are you sure your cpu's VID is 1.4875. I think you mean your Vcore is 1.4875. You VID can be found out using CoreTemp. VID is what the chip has been set at the factory to run at stock settings.

I wouldn't think you needed to raise VTT voltage much, if at all. I'm currently stable at 1.3 with 1600 FSB.

 

[KillerDr3w]

I think I have set the VID to the voltage I want, rather than add an offset to the original VID.

Newb question, but will that make a difference? I get the desired voltage... (although it could explain why I have never managed to get stable above 3.0GHz).

 

[bloodline76]

Try a lower multiple, something like 400x8 = 3.2ghz

 

[fornowagain]

Run Memtest for a few passes rule out the ram.