MSI Afterburner not working with Acer Predator ph315-54-70LH (RTX 3070) Win11

Hello my Predator with the RTX 3070 sometimes gets hot in heavy games, tryed the latest msi afterburner(4.64) and lastest Nvidia drivers (512.77) to underclock and undervolt the GPU.

First i've installed the MSI Afterburner in Win11 but only the curve editor was apparently working, tested to lower the GPU clock from 1800Mhz to 1600Mhz but it didn't work.

After searching I find a way to unlock the GPU core voltage in MSI Afterburner but it didn't work either.

Is the a way to lower the GPU clock and/or voltage of the mobile RTX 3070 in Win11?

Thanks.