X48 Rampage Formula Preview.

[DaLiu]

I tried Zucker2k settings on my board and looks like i manage to lower the VTT voltage from 1,38 V to 1,28 V on 450 fsb. For NB any step lower than 1,55 V for 450 fsb its ending with BSOD or freeze. Looks like im not too lucky with my NB but at least the temp will be much better after i put a Thermalright HR-05 SLI / IFX on NB. Right now with 1,55 V on NB i have 48c idle and maxim 60c load with OCCT or Prime blend running for more than 1 hour.

[mikeyakame]

I tried Zucker2k settings on my board and looks like i manage to lower the VTT voltage from 1,38 V to 1,28 V on 450 fsb. For NB any step lower than 1,55 V for 450 fsb its ending with BSOD or freeze. Looks like im not too lucky with my NB but at least the temp will be much better after i put a Thermalright HR-05 SLI / IFX on NB. Right now with 1,55 V on NB i have 48c idle and maxim 60c load with OCCT or Prime blend running for more than 1 hour.

Too low VTT means you need higher vNB to compensate for reduced NB GTL_REF voltage.

[DaLiu]

Too low VTT means you need higher vNB to compensate for reduced NB GTL_REF voltage.

Even if i set VTT to 1,38V i cant lower the voltage on NB, so what is the point to keep VTT at 1,38 V if i cant lower the vNB?

[mikeyakame]

Even if i set VTT to 1,38V i cant lower the voltage on NB, so what is the point to keep VTT at 1,38 V if i cant lower the vNB?

What performance level and strap are you using? Adjust VTT up and bring NB_GTLREF ratio down. Should help you relieve vNB somewhat. Anywhere from 0.56x -> 0.63x. Ratio is based on FSB_VTT.
I'm using 400 strap, PL6 & 438FSB at the moment and need 1.53V NB but PL7 only needs 1.39V with 333 strap upto 450FSB for moi. 400 strap, 500FSB and PL7 needs 1.57V-1.59V vNB.

[DaLiu]

What performance level and strap are you using? Adjust VTT up and bring NB_GTLREF ratio down. Should help you relieve vNB somewhat. Anywhere from 0.56x -> 0.63x. Ratio is based on FSB_VTT.
I'm using 400 strap, PL6 & 438FSB at the moment and need 1.53V NB but PL7 only needs 1.39V with 333 strap upto 450FSB for moi. 400 strap, 500FSB and PL7 needs 1.57V-1.59V vNB.

PL8 and Strap is AUTO. I never played with GTLREF, they are both on AUTO. What do you think should i do?