Configure Z170X BIOS F20 Auto Voltage Maximum?

[rossb]

I have a GA-Z170X-UD3 with an i7-6700K and a Hyper EVO 212 cooler with dual fans. I am running it with the following OC:

• 1-Core Active = 4.7
• 2-Core Active = 4.6
• 3-Core Active = 4.5
• 4-Core Active = 4.4

Leaving all of the voltage settings on Auto with this OC will result in the BIOS boosting the Vcore voltage up to 1.5V when I stress the PC with Prime95. This Vcore setting will send my core temps up to 100c fairly quickly in Prime95. Running the stock clocks results in Auto only boosting my Vcore to around 1.325V when fully stressed in Prime95. Fully stressed temps with the stock clocks at 1.325V are in the high 50s to mid 60s.

If I manually set my Vcore to 1.35V my PC is very stable with this OC and the fully loaded Prime95 temps drop down to the low 70s, which is acceptable. The problem with manually setting 1.35V is the voltage does not drop at idle. The result is I see idle temps in the mid to high 30s instead of the mid to high 20s I see when idling with Auto voltage.

Is there a way to leverage Auto voltage for reduced power at idle and set a maximum voltage cap at 1.35V? The best I was able to do was change CPU Vcore Loadline Calibration from Auto to Standard. That dropped my fully loaded voltage to around 1.406V, which dropped my fully loaded temps to the low 80s. I tried a slightly negative Dynamic Vcore (DVID) setting of -.025V but it resulted in an unstable PC with low to medium stress levels. I believe that setting drops voltage for all stress levels, which is not working out for me. I just want to drop my maximum voltage setting.

Thanks!

[Sandokan71]

Re: Configure Z170X BIOS F20 Auto Voltage Maximum?

Is there a way to leverage Auto voltage for reduced power at idle and set a maximum voltage cap at 1.35V? The best I was able to do was change CPU Vcore Loadline Calibration from Auto to Standard. That dropped my fully loaded voltage to around 1.406V, which dropped my fully loaded temps to the low 80s. I tried a slightly negative Dynamic Vcore (DVID) setting of -.025V but it resulted in an unstable PC with low to medium stress levels. I believe that setting drops voltage for all stress levels, which is not working out for me. I just want to drop my maximum voltage setting.

You can set VCORE to NORMAL (this is adaptive) then you can apply an OFFSET. You can start with - 0,065v offset (a good value for 4.2-4.4 Ghz) and reduce this value (for example -0,070v) to reduce temp, or increment (for example -0,060v) to improve stability.

[rossb]

Re: Configure Z170X BIOS F20 Auto Voltage Maximum?

You can set VCORE to NORMAL (this is adaptive) then you can apply an OFFSET. You can start with - 0,065v offset (a good value for 4.2-4.4 Ghz) and reduce this value (for example -0,070v) to reduce temp, or increment (for example -0,060v) to improve stability.

Thanks for the reply. As I mentioned above I already tried a slightly negative Dynamic Vcore (DVID) setting of -.025V but it resulted in an unstable PC with low to medium stress levels. VCore was set to Normal (adaptive) and Dynamic Vcore is the offset.

I just swapped out my Hyper 212 Evo air cooler for an Arctic Liquid Freezer 120 AIO system and my fully loaded temps dropped significantly. I am now seeing very low 60s fully loaded in Prime95 with adaptive voltage on (hitting 1.406V) and CPU Vcore Loadline Calibration on Standard. Idle temps dropped as well. An added benefit is the fans from this new cooler are nearly inaudible. The dual fans on my Hyper Evo were loud.

[Sandokan71]

Re: Configure Z170X BIOS F20 Auto Voltage Maximum?

Thanks for the reply. As I mentioned above I already tried a slightly negative Dynamic Vcore (DVID) setting of -.025V but it resulted in an unstable PC with low to medium stress levels. VCore was set to Normal (adaptive) and Dynamic Vcore is the offset.

I just swapped out my Hyper 212 Evo air cooler for an Arctic Liquid Freezer 120 AIO system and my fully loaded temps dropped significantly. I am now seeing very low 60s fully loaded in Prime95 with adaptive voltage on (hitting 1.406V) and CPU Vcore Loadline Calibration on Standard. Idle temps dropped as well. An added benefit is the fans from this new cooler are nearly inaudible. The dual fans on my Hyper Evo were loud.

I'm using a Liqmax II 240 and works well too. Anyway I'm stable with all cores at 4400Mhz with DVID at -.095v. I don' made other attempts because the temp in idle is 26C (20C room temp) and it is good.
The only strange thing is that on my Z180X Gaming 7 is that multplier never go down to x8. It go down at x9 but stay at x13-x14 the most of time... This seems a common issue with last F20 UEFI release.

[rossb]

Re: Configure Z170X BIOS F20 Auto Voltage Maximum?

I'm using a Liqmax II 240 and works well too. Anyway I'm stable with all cores at 4400Mhz with DVID at -.095v. I don' made other attempts because the temp in idle is 26C (20C room temp) and it is good.
The only strange thing is that on my Z180X Gaming 7 is that multplier never go down to x8. It go down at x9 but stay at x13-x14 the most of time... This seems a common issue with last F20 UEFI release.

My Z170X UD3 seems to hover around x9 and x8 when at idle in Win10. It definitely spent more idle time at x8 when I was running BIOS F6. I reported this to Gigabyte Support and their response was it was not an issue. My idle temps are in the 23C-24C range with adaptive voltage on and my room is approximately 22C. I am now running Core speeds of 1-Active = 47, 2-Active = 46, 3-Active = 46, 4-Active = 45.

[Sandokan71]

Re: Configure Z170X BIOS F20 Auto Voltage Maximum?

My Z170X UD3 seems to hover around x9 and x8 when at idle in Win10. It definitely spent more idle time at x8 when I was running BIOS F6. I reported this to Gigabyte Support and their response was it was not an issue. My idle temps are in the 23C-24C range with adaptive voltage on and my room is approximately 22C. I am now running Core speeds of 1-Active = 47, 2-Active = 46, 3-Active = 46, 4-Active = 45.

Yes, it seems on of the bugs of last F20 (I have unistalled any Gigabyte sw on the PC, AppCenter, SIV ecc.). My CPU never go down 900MHz.
In the meanwhile I have update DVID and some other configurations and now I a have 0,684v-1,32v range and my idle temperature drop down at 24C.
Thank you