Synapse doesn't adjust TDP?

Hey guys, so my issue is that on my Blade 14 (RTX 3070), I can't seem to get the power slider for the cpu working. The GPU slider is definitely working, as I can see the overclock that is applied on the high setting on MSI afterburner. Yesterday, after a reinstall, the CPU slider also worked briefly, and I could limit my TDP to 25W on lighter load games by taking the CPU down to low, but this morning my CPU was insistent on running full-throttle again at 35-45 watts although I don't want that for most games. Doesn't matter if I take it down to low, or take it up to boost, it is always the same. I have updated both Windows and Synapse to their latest available versions, and restarted numerous times, so I am at a loss here and would appreciate any help. Thanks!