B-6 MAC™ 3500 Resting ECG Analysis System Revision L 2021337-036Software/Hardware Compatibility: Software Compatibility with the -008 CPUSoftware Compatibility with the -008 CPUThe 801212–008 main board is NOT compatible with versions 9C or 10A. The -008board has a new Numonyx (Micron), 512MB NAND Flash chip that requires bootcode version B4 and software versions 9D or 10B.The boot code will prevent you from installing version 9C or 10A on a device withthe 801212–008 main board.