Mine shows the same.If you run 'show ver' it will tell you which firmware is running. On mine it shows SW: Version 08.0.30uT313, which is the latest for this switch.
Fingers crossed that the fan issue is the only issue, and it stays alive!
CoolNF-A4x20 FLX. It has more airflow than the A4x10, less noise and more static pressure. Seems a no-brainer And they fit just fine (the built in fans are 20mm as well). If you plan on having several POE devices and lots of ethernet ports hooked up, you might want one of the Sunon or Deltas that move more air as more heat will be generated.
Whichever fan you get, you will likely need to swap two of the pins. I had to with the Nuctuas. I'd give you that info from the notes I took, but I can't seem to make sense of what I jotted down I'll be pulling the switch apart soon so I'm going to figure it out again.
My switch is non-POE, so that should help with heat. I think I'll try a NF-A4x20 FLX, and I'll report back.
Thanks for the help.