Gulftown voltages

[dkm777]

I have my Gulftown overclocked to 4GHz (160x25) and used the following voltages to get there:
Vcore: 1.288V
VTT/QPI: 1.26V
Vdimm: 1.5V

Are these safe voltages? In my understanding Vdimm cannot be higher than VTT/QPI by 0.5V. So I should be safe?

 

[BrightCandle]

Yes those are low voltages. I ran a bloomfield at 1.35V for nearly 3 years and in the last 4 months it has lost just a few hundred Mhz for stability at the same voltage. Should last a while at 1.288V.

The Vdimm problem with +0.5V never really materialised as most overclockers needed to push more QPI voltage anyway as the uncore was the limiting factor in a lot of overclocks.

 

[dkm777]

That's good. Since I intend to max the RAM soon since the local prices have fallen quite a bit lately I need to know what is the max safe 24/7 VTT/QPI for a Gulftown. I read in some places that it's ~1.36V but looks like nobody is absolutely sure. Wouldn't want to fry such an expensive CPU.

 

[aigomorla]

no more then 1.375vcore
no more then 1.3 VTT
no more then 1.65 dram.

been on gulftown longer then anyone on this forum. 6 months b4 real release to be exact.
and also killed 2 gulftowns figuring out what is safe and not.

values change if your on water because of the lower heat... u can probably ramp vtt up to 1.4 and keep vcore at 1.4.... but ABSOLUTELY NO MORE THEN THOSE unless ur on phase.

 

[Spikesoldier]

very safe for 24/7 operation