Is there a step-by-step instructions on how to mine somewhere? Sorry if I missed it.
For Windows
Download 32 or 64 bit exe from github
rename
Shift-Windows
open cmd
type Shift-Windows account new
Mine with GPU
Shift-Windows --rpc
Download Miner AMD ONLY >>
http://d-h.st/rbntrun shift.bat
Tip if this helped
SHF: 0xae0ada93d2a680d3fcdd705b9803c87c974fd522
Everyone on block 99?
Tip coming your way as soon as I hit some blocks!
What should I expect with 2 x 280x?
Thank you!
Not to sure i'm only running a single 270x at 20MH
For whatever reason the 270 and 270x are the most efficient cards for mining with ethminer, getting 18-22 MH/s (depending on overclocking which gains 1 or 2 MH/s). The 280/280x has reportedly got about 20-21 MH/s and the 290/290x has been getting 21-24 MH/s. Not much of a gain considering how much more power and cost the 280 and 290 add. But if you got em, smoke em, right?
Edit: I should add that a small undervolt and bumping the memory clock down will not effect the hashrate.