I also have this problem.
Installed kp50 from extras-devel.
When I issue a kernel-config load dsp it will load /usr/share/kernel-config/dsp. (I didnt alter it or anything).
Which has 805:60:600 in its list of frequencies.

But after loading it, kernel-config show will list 805:50:600 in its active frequencies.

How come?

EDIT:

Nevermind its due to the smartreflex thing.
Turned them both off and now its all good