currently i am on core voltage offset of
-.0.105V
am i doing it right shall i try -0.110
?
-
-
don_svetlio In the Pipe, Five by Five.
Most Kaby/Sky CPUs do -100mV. Few that I've seen go higher, though. I'd probably settle at that, especially considering Razer's iffy power delivery.
Vasudev, Nuke33 and Vistar Shook like this. -
Vistar Shook Notebook Deity
If you are not getting any BSOD on load or idle then it is fine. The ULV chips, as in the stealth, tend to accept less undervolt than the bigger brother HQ chips. You can also try undervolting the iGPU, but take it easy...something like 60mV and go from there....maybe up to 80.
Last edited: Sep 25, 2017Vasudev, Nuke33, ThatOldGuy and 1 other person like this. -
Ringbus aka Cache voltage is locked to IA/Core voltage in XTU. So if you use XTU you will not get any lower than what the Cache UV limit is.
But if you would use Throttlestop you can change those two settings independently.
My 7700HQ can undervolt around 110mv with both locked together. Unlocked I can undevolt the cores to around 140mv.
Also you should be aware that Cache/Ringbus is the main interconnect of the CPU internally and to your system which tends to cause instability all over the place when undervolted too much. I recommend not to undevolt Cache/Ringbus any more than 100mv.Vasudev and Vistar Shook like this. -
Vistar Shook Notebook Deity
So on your Kaby RB you have -100mV on the ring and -140mV on the core? That is impressive, I set mine the same, but I will try increasing the core offset and decreasing the ring offset.
-
Would be interesting to hear your results with a skylake cpu.Vasudev and Vistar Shook like this. -
tbh i was on -0.100
and it was stable but sumehow the computer was slugishVasudev likes this. -
-
don_svetlio likes this.
-
Vasudev likes this.
-
-
core/cache can do at least 50mv
analog/sa is +10mv compared to core/cache
igpu at least 45
Undervolted on an i5 7300UVasudev likes this. -
-
In my case (i7-7500U) I've managed to go -80 mV on the CPU, going under that threshold gives me an almost instant BSOD.
For GPU I've gone for -60 mV, as I read that GPU should not be undervolted that much (so it's possible I could go lower). Though the ThrottleStop guide says the values for CPU and GPU should be the same... And earlier in this thread someone said that GPU should not be undervolted at all. -
don_svetlio In the Pipe, Five by Five.
Undervolting the GPU should be harmless - if you go too low you'll just crash and need to reset.
-
Vasudev and Vistar Shook like this.
how much can you undervolt an i7 7500u in a stealth?
Discussion in 'Razer' started by Esaelias187, Sep 20, 2017.