hello guys excuse me for my English ... anyway .... I have a rig of 6 GPU XFX AMD RX 480 GTR 8GB and I would take them at most to undermine the greater benefit and energy savings without compromising the stability and without damage to cards ... which of these files should I install? They are compatible with my cards?

RX480-32MhOTB
RX480-30MhOTB
480LowEnergyOK
RX480Mod.zip

also with what program you can flash the custom rom?

I would have another rig 6 GPU AMD Radeon MSI RX 470 X 8GB Gaming ethos with operating system exists something for these cards?

thank you in advance