Hydroshift LCD 360S pump not working on GIGABYTE B850 AORUS Elite WIFI7 ICE

Hello,

i have recently purchased the Hydroshift LCD 360S, installed it on my GIGABYTE B850 AORUS Elite WIFI7 ICE and the pump doesnt work. I tried every fan header on the mainboard and switched the settings in the bios to "PWM" from auto. For testing purposes i installed the AIO on my old GIGABYTE X570 AORUS Elite and there it seems to work fine without any BIOS adjustments. L-Connect 3 finds the AIO on my new Mainboard, but the pump doesnt produce any flow (0 rpm, no noise, no vibration).

Is there the possibility that my GIGABYTE B850 AORUS Elite WIFI7 ICE is incompatible with the AIO?

I updated the firmware of the AIO to the newest availabe Version with L-Connect.