Been using this miner for like 6 hours now and it's amazing. 4-5 MH/s more than Claymore, which is great!
But I'm having this weird problem right now, I have 2x RX560's which are getting 14.7 MH/s each, but every ~10 seconds they both drop to ~12 MH/s for 2 seconds and then it goes back to 14.7 MH/s. My RX580's are not doing this and are keeping strong on the 30.5 MH/s mark. With Claymore I do not have this issue, I also tested this with Ethminer and the RX560's do not drop in hashrate at all.
Would be great if you could get that fixed somehow, other than that, this miner simply amazes me, keep up the good work!
Please try using the command line option -mi with different values (for example 8, or 9 instead of the default value of 10). You can change it only for the RX560s by using it like this:
-mi 8,8,10,10,10
In the above example the first two cards will run with mining intensity 8, and the other three - with mining intensity 10. This assumes that the RX560s are the first and the second card and you have five cards in the rig. The order of the cards must be the same that is listed by PhoenixMiner when starting up.
Didn't change much, still dropping hashrate.