GT83VR 6th gen GTX 1070 weak gpu oc 170w tdp

I have a gt83vr with dual 1070 sli cards, i have unlocked the tdp to 150-175w each via hardware flasher (didnt go higher cause PSU limitations) and i seem to not be able to go past +75 core without crashing on some titles and 3dmark, it seems alot of flashed 1070 170w tdp cards can get up to +150 core or higher, is there soemthing i may be doing wrong? The core voltage is really jumpy when temps go up with i believe is normal maxing out at 1.062v but at times i have even seen the core be at 1.000v with 1974 clock, i keep my cpu at 1.3v (6820HK) with 4ghz so i dont think i am running into PSU issues as both of the bricks are 230W. Is it just these 1070s or one of them cant handle past +75? Havent tested with sli off but i usually keep it on always.

 

I think it's better if you work with the voltage curve instead of just cranking up the OC.

 

Un-sync settings for both GPUs in afterburner (I assume that's what you're using) and see which card is the issue. +150 should be easily possible. I always had issues with settings synced for both cards.

Also what is your max temp?

1.00v should also be enough for 2000mhz, so try that as a voltage cap

To test throughout the turboboost 3.0 curve, run kombustor windowed, and change the size of the window. If the window is really tiny (like 50px x 50px) that will be max clocks at 1.062v, as you increase the size of the window it'll hit power limit and start heading left down the curve. Should it crash you have an idea where in the curve the instability is, to lower the mhz.

 

I’m not really sure how to mess with the voltage graphs in msi afterburner.

 

few vids around. Not all of this is the same for notebooks though, like the temp limit and fan speed sliders will be greyed out

unlocking voltage in MSI AB:


curve editing / afterburner tutorials:




A voltage cap looks like this:

this is 1950mhz/0.95V. If the power or temp limits are not hit, and the load is high enough that it's not clocking the gpu down under optimal/adaptive power settings, this is what the GPU will run at.