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The original was posted on /r/intel by /u/latorware on 2023-09-01 05:11:19+00:00.

Hi, So recently I’ve been playing with the v/f point offset curve of my i9 13900kf, while setting a PL1/PL2 of 250W. I could perfectly do 350W stable but I prefer to keep my temps low.

I’ve come to a point where I think I’ve achieved a pretty good undervolt for my chip (all points to -0.05, except points from 4 to 8 with even more negative offset (from -0.065 to -0.09) to keep even lower voltages at higher multicore loads.

After some testing with cinebench and prime95, my systems seems stable. Then, just to see what score I could possibly get with more power, I incremented the PL1/PL2 to 300W, but doing this makes it unstable for some reason which I don’t understand.

If incrementing PL1/PL2 at a stock voltage (stock vf curve) doesn’t make the processor unstable, why with the vf point offsets manually set does?

Power delivery and othe components shouldn’t be a problem. I have an asus strix z790 and an 80 gold 1000W PSU