Having some extra time on my hands I have drawn my attention to GPU rigs again. Garlicoin was a bit of a bust, I have accumulated a bit over 180 of them now but CryptoNight still seems the way to go for AMD cards. Eth is up there but MRR pay well for XMR as well and it's lower power, temps and noise. So I have been looking at using my Onda motherboards and trying alternative miner software instead of Stak-XMR. I finally got SGminer to work which is supposed to be the fastest and no dev fee but I could only get about 650H/s out of it comparing to 800-900 on cast. XMR-tak was either slow with low intensity or crashing with high intensity for me but I really wanted to get it working due to several pool settings.
So my final result is this on Onda D1800 BTC motherboard
5x RX580 cards, XMR- stak, 4k+ H/s less than 600W. I was worried about close spacing of cards but temps are pretty much the same as before, fan speed might have gone up a bit in average maybe from 1200 to 1300 rpm.
Well pleased with it although profitability has gone down a lot since mid December it's still better than it was in September. It's earning me more than £9/day, in September it would have been £4-5/day. Compares well to the S9 as well, the whole setup would cost about £1800-1900, only uses less than 600W and would be more re-saleable if all mining went downhill.
Just need to do the similar setup on my other Onda motherboard but it will leave 1 card left over and as it is easier to manage the same cards together I think I will have Vega card left over so that will end up on eBay with £500 starting price as that is what my friend already offered me for it. Not bad considering I bought it for £390 and it has already earned me £250-300.