How to stop CPU clock fluctuations on ASRock A320M-HDV R4.0?
Whenever the battlefield gets chaotic with explosions, I get these sudden, jarring frame drops. The frequency scaling on the ASRock A320M-HDV R4.0 is way too aggressive for multi-threaded loads, with the clock jumping between 3.2GHz and 3.6GHz. This caused my frame times to spike from 12ms to a stuttery 38ms. I tried killing all background apps in Windows, but the clock still bounced around—another useless attempt. I finally went into the BIOS, disabled Global C-State control, and locked the CPU frequency at 3.5GHz. In RTSS, the frame time variance dropped from 10-35ms down to a stable 13-16ms. The smoothness is night and day. Disabling C-States bumped my idle temps by 8℃, so I had to tweak the fan curve to make it tolerable. Now, the CPU stays at 68-75℃ and the VRMs at 72-78℃. The scheduling is finally consistent, but it's a shame I have to disable power saving just to get a smooth experience.
