I was able to change the indicated switch values from 0x01 to 0x00. My varname, varstore and varstorenames were, of course different than those shown in the link you have posted, as I was warned and suspected would be the case. I found this very thread in my searching and followed it to its end with the ability to change the values. The others have posts from 2018 to 2021 so I'm wondering if there is a hach or older BIOS that allows unlocking of the i7-8750H processor to such tuning? The problem is that while others with the same computer and processor have been able to Undervolt, I am finding that my unit is persistently locked to such adjustment. I fully understand that Undervolting may or may not help in my case but from the results I have read, it's worth trying. In addition I would like to experiment with Either Intel XTU or Throttlestop performing some undervolting and load testing for best bench results. To minimize this in the future I am replacing the Thermal Paste with Thermal Grizzly Kryonaut and adding Thermalright pads on MOSFETS that should just contact the bottom case cover along with a through cleaning of the fan grills and air paths to ensure the best thermal conductivity from the chassis.

While I have not documented this, I know I have experienced mild to extreme throttling in some instances. at 65-85% Hum) with possible sunlight exposure although I try to minimize this. The laptop in question is used many times in higher ambient and humidity conditions (80-90 Deg F. I have a Dell XPS 9570 with the intel 8750H and have been doing some research and searching for a solution to decreasing internal heat buildup in the field.

Intel xtu older versions