I got some RX480 8G Sapphire Nitros with micron memory SN: A1704.... Bad luck :\
Is there anything I can do to get more hash from these?
Now mining low power mode...
I'm now mining Ether 25Mh/s each and Afterburner showing 65w.
Settings 1050/1750 and -97 Voltage.
there is a 30MHlowenergy rom link in the last page.
All of my Sapphire 480 Refs rigs are with "28MHlowenergyOK" rom, but I have one or two rigs with 30MH one... not bad on ETH mining however ETH mining consumes too much power and too much heat -- it's like a death sentence for the card, stretching it beyond 30mh is not good because for ETH you need stable cards -- having the low power roms and slightly faster than 25/26MH like 28MH or 29Mh is good enough.