i had issues when trying to update the original 0402 bios.I tried 0507 and i managed to flash it through windows,first try-no problem

BTW i'm using C2D8500@4+GHz + 2x9800GX2 + 2xRaptorX....using a one year old Enermax Galaxy 850W(i've managed to play Crysis with the cards OCed as well)