Swapped from X870E Taichi to X870E nova and now can't control fan speeds.

Hey all, I just replaced my X870E Taichi with a X870E Nova and now I can't control the case fans speed. It's always stuck at 1600RPM whereas on my Taichi, it was 800RPM. I tried setting the Fan control mode from Auto to PWN, but that didn't do anything. I tried all 3 CHA_FAN headers and the W_PUMP header and they all act the same.