Settings the same for both? and not using a crossfire situation?
Settings same *2 not use crossfire
Are you using first gpu to do anything graphically intensive like watching video's or webpages, or games? Also have you tried just using only that card to mine and see if it still stays around that hash rate by itself?
It could be several factors.. perhaps even the memory or just plain old "silicon lottery" losing on the first card.. Maybe Dok can help with this one though.
No only use for mining, i have 3 miner of equal characteristics same fail
Saludos alguien tiene en concreto que esta pasando con la rentabilidad la pagina http://whattomine.com hace 20 dias por 8 r9 280 me daba al cambio 0.0016btc minando en nicehash estaba mas o menos 10% en esa cantidad la misma se a reducido a 0.0009 puedo entender que el btc haya bajado pero porque baja el cambio de zec a btc? en un supuesto minando equilihash agradezco alguna luz ya que no soy entendido en la materia