Hi,
I received 1100AHx2 and fan system not work in manual and auto.
I check it with Ros5.11

thanks

fan doesn't work at all, or what is the problem exactly?

fan don't start, in manual mode (main or auxiliary).... in auto and CPU Temp 41°C don't start... what is the minum temp to start in auto mode?

thanks

Is the fan connected to the board? check the wires, are they connected tight? unplug and re-plug the fan

is the CPU radiator hot? if not fan will not work Fan speed for RB1100AHx2 is automatically regulated and if CPU is cold fans will not turn on. Also, if temperature increases so will RPM of the fan.

Ok, thanks..
I see the fan up when cpu 100% or heatsink is over 40°C
good job.

thanks