Just bought XFX RX 570 4GB with Elpida mems.

Bios modded (1500 straps)

Hashrate is at 25mhs without oc.

I have an issue with OCing the cards. With 2 cards on my mobo, when I run it with -100, 1100 and 1950, both cards start at 27mhs. Gpu0 has no issues. Gpu01 on the otherhand, slowly decreases from 27 to 0. When it reaches zero. It hangs.

Help! This is driving me crazy. Anyone know how to fix this?