MY 4028 FAN DOESN'T SHUT OFF AT 0%

Hi All,

Just finished upgrading to v-core v3.1. As part of that, I installed a Sanyo Denki 9GAX0412P3S001 4028 parts cooling fan. I wired up power and ground to FAN 6 (always on), pwm to PA8 (aka fan_part_cooling_pin), and the tach to PG11 of my Octopus board. Everything works, except that the fan doesn't turn off at 0%. The official documentation mentions this issue but the solution involves not using the tach wire. Is there a way to solve my issue and keep the tach reading? TIA

primary-violet•1/20/23, 5:21 AM

The official docs also mention the enable pin, which has nothing to do with tach

verbal-lime•1/22/23, 5:52 PM

I remember having this issue. The solution was adding an enable pin and using a different fan output than what I'd used before. However I burned three fans up and have given up with the process so I forgot which plug you're supposed to put it in now. I think I ended up putting the fan in one slot but getting the PWM in from a different location. Hope that helps