-cvddc -100 - Apparently you have to set it to relative values.
I use absolute value for all of my 5700XT cards and 6600. Is this special for 6600xt? The API help says "Set GPU core voltage in mV (0 for default)" and doesn't mention the relative value. May it works also.
In my case, 6600 non-xt, PM takes the absolute value. The log shows below.
set GPU clocks to 1100 MHz (Vddc 900 mV)What the log shows if you use absolute value for 6600xt?