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+--- Thread: PWM fan control low power (/showthread.php?tid=15530)
PWM fan control low power - Connar - 12-12-2021
Hey all!
I just got my first Rockpro64 this week, works great but i have a small problem:
The cpu fan is running very slow, it is connected to the pwm header and set at the max value of 255 in software, but it's still very slow (enough that it needs a push to start spinning on startup), but when i connect the ground wire of the fan directly to ground (effectively closing the circuit) it actually goes max speed. That tells me it could have enough power to spin faster but it doesn't, does anyone have the same problem or is able to help me figure this out?
note: I was planning on putting a second case fan connected to the same header, tried it and none of the fans spin (i can see they get a tiny bit of power but not enough to spin)