Missing "System 2" fan in HWINFO64 v7.36-4960 and Gigabyte X570 Aorus Elite

[mchangsp]

I am missing the info for the "FAN_SYS2" header on my Gigabyte X570 motherboard (running Windows 10). There is a fan attached to it, but the RPMs do now show up in the sensor list. The other fan headers show up in th esensor list. See screen shot. What going wrong?
System info:

 

[Martin]

Is that fan also spinning? If not, it will be shown once it starts to spin.

 

[mchangsp]

Yes the fans are spinning. SYS_FAN2 is connected to the fan hub of my Fractal Design Meshify 2 case. The fan hub is connected to the two front fans - Fractal Design Dynamic X2 GP-14 fans. The fans gave a 3-pin connector.

Is it possible that the fan hub has something to do with it?

 

[mchangsp]

Problem solved!
Martin: your respionse got me into checking the hub.
I am ambarrsed to day but I connected the front fans to the headers where the RPM was not reported back.
I connected 1 front fan to the fan hub header which reports and HWINFO showed the RPMs....
Thanks for the help!