I've got a Sapphire x1800XL 256MB card that is giving me some issues with a hack that I'm doing. I'd like to rid it of the Sapphire BIOS and flash it with the GeCube BIOS for their version of the x1800XL. Per my understanding, the hardware between all x1800XL's regardless of brand is the same e.g. they're all made in the same plant and then branded with decals based on vendor (Sapphire, ATI, GeCube, HIS, etc.). Is that the case? Assuming so, is the BIOS on the cards the same as well or is it vendor specific? Many thanks in advance.