I have all version of RX470 and RX480 : i use my own bios, eth single mining running at 28.0 MH/s using Saphire RX470-4G Reference Card bios runnning at clock 1100Mhz/2000Mhz Mem at 0.9875v using mem… (View Post)
with 2500 USD you can have RX470-4G x 12 each RX470-4G hashing at 28-29 MH/s consuming ~100W so 28 x 12 = 336 MH/s 100 x 12 = 1200w assuming 6 GPU per mobo, you need another 200w x 2, total 1400w RX4… (View Post)
second hand Gigabyte GA-MA770T-US3 its only 35$ , mining with it on 8 rigs, 40 gpus total cost : GA-MA770T-xx = 35$ AMD Sempron 145 = 10$ Kingston Value DDR3 4GB = 20$ with 65$ you'll get working PC … (View Post)
I think this one is better, ugliness are equal, but can run 2250 out of the box at 29MH/s , 8pin pcie powered, no pcie slot power issue, both have 3 fans running silent (View Post)