Fan headers FAN0, FAN1, FAN3 have the labels for FAN*_TACH and FAN* swapped. In the below snip of the schematic, pin 1 should be FAN0. Pin2 should be FAN0_TACH. If someone connected their fan tach line to pin 1 and had the jumper set for 24v, it would likely destroy their fan.
Fan headers FAN0, FAN1, FAN3 have the labels for FAN*_TACH and FAN* swapped. In the below snip of the schematic, pin 1 should be FAN0. Pin2 should be FAN0_TACH. If someone connected their fan tach line to pin 1 and had the jumper set for 24v, it would likely destroy their fan.