When I first built my computer with this graphics card: http://www.newegg.com/Product/Product.aspx?Item=N82E168... . I downloaded MSI After Burner right away. The voltage slider is greyed out. But I swear I remember the power slider would go to 120%. I recently decided to start overclocking. I found out you have to edit this config file for unofficial overclocking. I did that, but I noticed no change. I installed EVGA Precision X, but with it, the power limit would not go past 102%. I also noticed Precision would let me increase the voltage by +12mv. I tried that but it did not seem to have any effect on the voltage. Since installing Precision, I noticed After Burner would no longer show GPU usage and would stay at 0% all the time. So I uninstalled Precision. Then I noticed after burner would only let me go to 102% power now too. I read online that old versions of Precision work better for voltage control for some reason. My card was running at a voltage of 0.850v / 0.877v. But the voltage slider in the old version of Precision ranged for 0.975v to 1.150v. I tried setting it to 0.975v and HWMoniter registered the change.
So many things about this experience don't make sense to me.
Why did the power limit % change from a maximum of 120% to just 102%? How can I get it back?
Why do all the programs have different voltage options? Why will Precision 2 change voltage, but not Precision 4 (lastest)?
None of this makes any sense. Could someone clear this up please?