Is the RTC Wake alarm supported?

Is the RTC Wake alarm supported by the Rock Pi X board?

I’m able the program and test the RTC wake event under Linux as explained here:

with 3 simple commands:
echo 0 > /sys/class/rtc/rtc0/wakealarm
echo $(date '+%s' -d '+ 3 minutes') > /sys/class/rtc/rtc0/wakealarm
shutdown -h now

However - the board newer wakes up.

I could not find any RTC wake related setting in the BIOS so i think this option is not supported - which would be a pity …

Thank you for clarification.