I have modded my powercolour reference 290x with arctic accelero 3, the temps is quite good, i am happy with it, since the arctic accelero 3 is similar to gigabyte windforce and sapphire tri-x, i plan to flash the gigabyte windforce or sapphire tri-x into my card, i have zero knowledge this flashing, vdc voltage control etc, help will be much appreciated, i have posted overclockers website but seem like i am a ghost nobody bother to reply me. thanks for reading