Hello and thx for answer
i have readed and now my Board run on Armbian Jessie (Retrorangepi 4.2)
the problem what iam have the board run only on 408MHz in idle and on fire....
i have check the system settings, here is more than 408 allowed...
i have tested with user_overlays in armbianEnv.txt without result
sun8i-h3-libretech-all-h3-cc.dts in /boot/overlay-user/ directory
the "sun8i-h3-libretech-all-h3-cc.dtb/dts" file has a speed table up to 1368Mhz
can anyone help me to fix the problem please
best regards fredy