Here is my new ETH rig with 5 MSI R9-390 cards (MB, CPU, RAM, DIY frame etc. were  salvaged from my previous setups). I am getting 155-157 MH or 31 MH/card on ethermine running qtminer on Win 8.1, EVGA 1600 T2, nothing special using generic batch command  as stated on the website. I did overclock the cards to 1133 MHz with afterburner, I will gradually lower the clock speed to see if I can still get the same hash rate. I am limiting card number per MB to 5 because of PSU limitations. Now setting up my 2nd MB and soon add 5 more cards to it. I will probably stop there, but I do have 2 more EVGA 1600 PSUs sitting on the shelf, who knows  

Many thanks to citronick and others who have posted their rig pictures which got me hooked.



Edit: lowered clock speed to 1100 MHz and getting about 148-150 MH, I think I will keep it at 1100 MHz.