poparamiro, I recently bought one of those Denki beasts myself and I can only say that I have never seen or heard anything like it before. BTW, I measured the startup current right at 8.3-8.4 amps and it pulled right around 75 watts measured at a running state at full power. BTW, I wired the pwm control wires together into a pwm 4 pin plug, so you can actually use the cpu fan header to control fan speed with it. That was pretty neat, hearing that jet engine of a fan speeding up and slowing down according to heatload on the proc. I have each motor assembly wired to it's own molex connector, 1 rpm wire and the pwm wires into a 4 pin pwm connector and the other rpm sense wire I put on it's own 3 pin fan connector.
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