Got 4xNoctua NF-A4x20 and replaced 4 super noisy stock fans out of HELL.
Default pinout is as follows (you 're looking at terminals, with two smaller hooks facing down, holes facing away):
1.Red +12v
2.Blue Tachometer(RPM)
3.Yellow PWM
4.Black GND
I've unmounted stock fan block, removed wires from white connectors, removed black connectors from Noctua fans, connected wires as above. Below is Noctua color wiring, same layout
1.Yellow +12v
2.Green RPM
3.Blue PWM
4.Black GND
After connecting all of them to board PWM takes effect (without active alarms fans go from ~20% to ~40% in cycles, which makes it unbearable). Even with Noctua low-noise adapter (which kinda makes cycles smoother) it was more irritating that running with 100% speed.
So, I removed PWM wire from each connector. System detects all fans, but can't control them, and it's really quiet!
So, my advice would be to get 3-pin fans and wire them the same way so you would know if one of them really fails.
It's probably not possible to control fans from PPC board, tc daemon just reads data there.
If that helped, please endorse: https://goo.gl/RfjbnG
Default pinout is as follows (you 're looking at terminals, with two smaller hooks facing down, holes facing away):
1.Red +12v
2.Blue Tachometer(RPM)
3.Yellow PWM
4.Black GND
I've unmounted stock fan block, removed wires from white connectors, removed black connectors from Noctua fans, connected wires as above. Below is Noctua color wiring, same layout
1.Yellow +12v
2.Green RPM
3.Blue PWM
4.Black GND
After connecting all of them to board PWM takes effect (without active alarms fans go from ~20% to ~40% in cycles, which makes it unbearable). Even with Noctua low-noise adapter (which kinda makes cycles smoother) it was more irritating that running with 100% speed.
So, I removed PWM wire from each connector. System detects all fans, but can't control them, and it's really quiet!
So, my advice would be to get 3-pin fans and wire them the same way so you would know if one of them really fails.
It's probably not possible to control fans from PPC board, tc daemon just reads data there.
If that helped, please endorse: https://goo.gl/RfjbnG