Questions Undervolting i7 6700HQ

I am starting to undervolt my CPU with Throttlestop.
At the same time I am monitoring with HWinfo64.

When I make offset -100mV and start prime95 for stresstest, then HWInfo showing me for each core 1,08-1,09V. Before offset it was ~1,11V on each core @3,1GHZ during prime95.

So it is just -20mV during 100% load, why no -100mV like I did in Throttlestop?
Is it reading error?

2nd question: Why is Volt higher on cores while there is no load at all?
when I start prime95 the Volt goes down on each core?

 

Don't use prime95, use OCCT large data set with infinite mode.

Core voltage variances are normal, it's ok to see one core requesting a different amount of voltage compared to the other.

Try undervolting with stress test OCCT, I'd say -35mv on core and cache, then work your way down.

Stress test should be run at least for 8-10 hour for checking, 24 hour if you're confident enough.

 

ty for reply. But my question was, why do the cores only take 20mV less, when my offset is -100mV.
Is this the normal case?
I will try OCCT, thank you !

 

I stress test with XTU Stress test for 5 mins and its always enough for me

 

I'd always test for at least 10h OCCT, short benchmarks like that don't demonstrate proper usage scenario

 

Such a time and energy waisting, who has time and patient to do that?

I used to run 10 minutes stress max, passed it with -180mv, so I decided to go with -145mv. This -145mv is also very decent, stable and never had any issue for two months now.

 

My man there

Exactly my thoughts

 

My .02:

I use Intel XTU and I have it set at -175.xxx mV (I think it's mV anyway). I remember only encountering problems beyond -190, so overall I'm happy with it. Slashed around 2-3C from my stress tests. Never ran any tests longer than a few hours.