Hello dude,
Allow me to congratulate you on your excellent miner and the hard work that this needs to maintain it, but I have a great doubt, I have 3 sapphire r9 280x dual-x cards with hynnix memory and I recently bought 1 card identical model exact all except The memory that is elpida, I would like to know, why if they only differ in the memory chips (they work with the same design parameters), the card that has elpida memory has a less speed than average 10,000 H/s?
Regards.
I have a similar issue like yours. I have a XFX R9 280x Black Edition that has Elpida memory and only gets 289H/s where a friend has the same setup but he has Hynix and he gets 310 out of it with lower clock settings. I am looking for someone who has a BIOS mod that might unlock that extra potential.