Just received the Pironman 5 Pro Max. I have found that both of the back fans appear to work with regards to spinning. But only 1 will light up with the LEDs. If I switch the plugs then the LEDs work with on the other fan. So both fans LEDs are capable of working but the top fan socket does not drive the LEDs. I have reinserted and verified that the fans are plugged in. The jumpers appear to be set properly. If I remove the LED jumper then no LEDs work. Plugging in the jumper allows only 1 to work.
Other than my HDMI issue everything else appears to be working.
I have a second setup on Pironman 5 Pro and every thing there appears to be working.
