Using PC Probe tells me that the Powerfan is below threshold. Obviously
because there is nothing connected to it.

All fans seem to be spinning. Just confirming that I should just uncheck
this setting for monitoring?

Also, what is the connector for? Just an extra fan?

I actually thought it was getting that reading because I might have
negelected to to put the cable coming from the power supply to the PWR_FAN
connector. (currently on the chassis connector and works fine. I get a CPU
error when it's connected to the power fan connector)

Many thanks in advance.