I guess you can guess what I am guessing might be possible and good to do. The Athlon heat sink + cooler seems better at handling higher temperatures (since the Athlon was hotter) and compared to the FX one, it seems to benefit from copper heat pipes, not just have one Aluminium radiator.
So.... If I install the Athlon heatsink + cooler over the FX6100 processor... Will it work?
So, I have installed the Athlon cooler (fan + heat sink), sort of.
I detached the fan from the new FX cooler and fitted it onto the old Athlon heat sink. (because the Athlon fan was some years old etc).
ANYWAY, the problem is that in bios I do not see any „targeted CPU” temperature or something like that. So now my CPU fan is running in „smart mode”, but it does not turn off completely (0 RPM) like with the old Athlon. For example, now my damn CPU is at 14*C and the fan is doing 1400 RPM. Dafuq!?