Intel i7-9750h experiencing thermal throttling and undervolting problems.
Intel i7-9750h experiencing thermal throttling and undervolting problems.
Repaste is a good idea and may be helpful.
But there was another wired way maybe you should try, that was to disable Virtualization function in BIOS menu and disable Hyper-V function in Windows settings.
In my case, I had a ThinkPad X1 Extreme which got 8750H CPU. When Virtualization and Hyper-V were enabled, the temperature limit would be around 80c, and when these functions were disabled, the throttle would begin at around 100c. It worked with my ThinkPad, I don't know if it will work with any other laptop.
So disable Virtualization may not make your laptop cooler, but maybe you can get more performance at high CPU temperature.
Hey there! Great progress! Once the thermals are stable, try increasing your undervolt slightly. Keep the cache at -121mv or lower and observe how far the core performs. Based on Uncleweb’s advice, cutting the cache voltage by half should give optimal results for the I7 9750h. You’re already seeing solid performance at -121, -221, and -48. It could drop into the low 80s or high 70s depending on the settings.
Also, experiment with PL1/PL2 at 65/75. Your chip typically handles up to 65 at full PELT, so 75 should be fine unless it throttles. If that happens, consider going to 90/90, but don’t stress about 200.
Close the discussion by picking the best answer. Need help with undervolting? Just send a PM.
Because I saw you reference an MSI Laptop, here’s the key point. (I’m an owner of an MSI GF65Thin, so I get the details.)
MSI laptops typically adjust soft-lock voltage, overclocking, and underclocking via BIOS. To modify these, go to BIOS, activate advanced settings, and press F2. Locate the Overclocking section under CPU Settings. Adjust the options you see—like XTU Interface or Intel Speed Shift—and toggle them as needed. Voltage offsets and tuning tools will only impact your system after you change this BIOS setting. Test it and let me know if it works.