Hy, i have the same problem, with vent.
i have conected pomp and i think work good
But my fans, fans do not start with the system, and load temp of 70 degrees receive.
reboot and go into the BIOS, do not change anything, but give save & exit and work for now
after one ore , i see in HW monitor, they dont work again
why do it?
pleese answer to me, i have big trouble