I recently had to build another computer from scratch, so I decided to match the specs of my current computer. Only thing is, the Sapphire Radeon HD 5570 1 gig ddr3 card I bought, even though same make and model number, has a different device ID. The old one was 0x68d9-1002, and this new one shows as 0x675f-1002. The older device id is supported by Mac OSX, the new one is not. Can I flash the older bios to this new card, or will it brick it? If it's possible, can someone point me to the rom?