Originally Posted by ruffhi
Impressive work. And those RPMs are really low. If you run power for the fans from somewhere else (ie PSU), you can probably get 8 or more fans per channel.
This, Exactly . . . . .
Power the Hubby via the PSU, and set the control mode to PWM, and you'll have no issues running 1 full rad's worth, (8) per channel, and there'll be virtually no load on the A6.