Fixed Or Offset Voltage?

[hadri]

Hi All,

Sorry if this has been asked before, but I'm running a 7820X on a bus of 100, multiplier x47, stable at about 1.25v using offset vcore (so each core varies slightly). They all get to about 80°C after 30 mins of Realbench and I've sent it off for de-lidding (really don't fancy tackling that myself!) as I want to push into the 4.8 - 5.0GHz range, but the temps didn't allow it.

In general, do people use offset voltages or stick to a fixed? Advantages to both?

 

[hadri]

Ah sorry, I meant its 80°C at x47, then the voltage suddenly goes up to get stable at x48 and starts thermally throttling.

I've noticed with offset that different cores (colours) draw different voltages, would just setting a static fixed mean some cores are getting more voltage than necessary? Are they always drawing that voltage even when idle?

Thanks

 

[hadri]

Ah that makes sense with the current. When you say adaptive, do you mean offset?