I am trying to mod a ASUS DUAL RX 480 4 OGB - BIOS using the SRBPolaris BIOS editor. However, if i flash the new BIOS the GPU no longer works. It does boot and shows in device manager, but the clock rates are shown as 0 Mhz in GPU-Z and for example Claymore miner fails to see the GPU.

What bios editor should I use for this card? Flashib the original BIOS found from ASUS website always fixes the problem.