by jasonamd on 20-Nov-2018 13:00
I was able to come up with a bandaid fix for this. Instead of using the AMD LED Fan USB Header, I connected the Wraith Prism USB cable to a USB 2.0 Header and the device was recognized immediately/installed by Windows as an AM4 SR4 cooler and the Cooler Master software worked effortlessly. I attempted a firmware update but the fan was already up to date. I then reconnected the fan to the AMD LED Fan USB Header but it once again was not recognized by Windows or Cooler Master software.
So the user is saying keep connected to the usb 2 header on the motherboard to the sr4 cooler (wraith prism)