So i switched the SATA cables of the pump and an SSD, and when i switched the PC on, smoke came out the SSD... i guess its broken.
I looked closer at the cable (which is actually from another Powersupply but has the same connector) and two of the cables were different than the one of my powersupply... so the SSD broke because of that...
The weird thing is, that when i plug in the correct SATA cable to the Pump, the fans go fullspeed but the pump doesnt work at all (temps rising), and i get the CPU_FAN Error warning. But when i take the wrong cable with the switched cables the pump works, and the Fans switch on once the CPU gets warm...
I dont want to use the pump with the wrong cable as i think it might damage it, or might have damaged it already, but with the right cable it doesnt work... im really confused, and have no idea what to do now :(