I have moded asus 470 8gb with micron and it gives me 27.7mgh using 1138/1954 using the latest polaris bios editor to edit the timings , you are good to go! Just remember never to put the card as a first one and attached to a monitor, cause it will freeze the machine when the miner stops and then started again. it will not gtive you memory errors , but it is restarts the machine when miner stops and starts. If you keep it away from a monitor it will hash forever with no problem!