M4 Pro max fan speed?

[Astrohunter]

Hi,

I think when setting my fan to max previously it was at stable 5000rpm.
I had logic board replaced, when I run it at max now I see around 4900-4905rpm, or even dropping slightly below 4900rpm at times.

I'm using TG Pro.

Shouldn't it max at 5k?

 

[M4th]

I wonder if Apple Diagnostics brings up any reference codes for the fan?

(FWIW, Macs Fan Control on my mini M4 pro shows 4900rpm for max...)