Hello guys.
I did the bios mod 1750 to 2000 for both the card
However i can only hit 24mh/s per card
anyway to increase the mh/s? increasing the memory seems to decrease the hash rate.
You cannot do anything more for this card because of the limitation of Hynix memory being the memory with the lowest performance for this card. Next time before you buy please check which Memory the card has, just google it GPU-Z database of the specific card you are going to buy. Samsung Memory can go easily up to 31 Mhash with the RX 580. However even with 24 Mhash is not that bad for mining Ethereum.