I underclock orange pi. So its running super slow. And booting sequence looks like this: Miner UP, DEV1,2,3 load, 5sec, DEV 1 set hashrate limit, DEV 2 set hashrate limit, DEV 3 set hashrate limit. So I have first 5 seconds to see x10 running on "full speed" after that it starts limiting each hashing board.