533Mhz memory speed on the RB800

Hi,

Has anyone tried to change the memory frequency on the RB800 to 533Mhz? “/system routerboard settings set memory-frequency=533Mhz”
And to Mikrotik is this supported? I have heard that if the function is available it is also OK from Mikrotik?
I have a RB800 with R52H and R52n @home running ROS v5beta3

[admin@hades.**.org] /system routerboard settings> print
baud-rate: 115200
boot-delay: 2s
boot-device: nand-if-fail-then-ethernet
enter-setup-on: any-key
cpu-frequency: 800MHz
memory-frequency: 400MHz
boot-protocol: bootp
enable-jumper-reset: yes

I read in this thread that it works on the RB1100.
http://forum.mikrotik.com/t/radius-server-not-working-in-2-8-11/127/1

If this works with the RB800 it would be the same as the RB1100 in the above thread. And more interesting it would be the same as the RB1000 speed. :smiley:

Thanks in advance!