Ilyme
Hi, I just upgraded to 2.17, and noticed that I can't change PL1 or PL2. they are both equal to 253w. Long/short duration Package Power Limit does not change anything. IA CEP/GT CUP are disabled.
If you have intel default settings enabled (It's either the first setting or one of the first), I think it doesn't matter what you put in for that power setting manually, it gets overridden with the "intel default" recommendation, which for 13900k is PL1=PL2=253W. You likely have to disable that intel defaults if you want to manually change those values.