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This link clearly shows the bios part number. I went to the bios savior site to check compatability with my pmc2 which worked in my nforce 2 and nforce4 boards which were 4Mb bios chips. This board has an 8Mb bios chip, and as far as I can tell uses a different type of bios savior. Check if the rd600 has an 8Mb flash rom ( u can cross reference the bios chip number at the bios savior site).