yes i have done it but still no higher hashrate 29.3 been upping the memory from 2000 to 2250 no increase what so ever
thanks for your help dude
try to increase TDP / TDC values. sometimes it is limiting factor.
also don't forget to play with dcri value (in claymore). it is much more than for 470 - about 70.
480/580 must give around 32 MH
next step will be power reducing... try to set voltage to 900mV