As with the previous v1.5.3 tweaks, the
Info.plist change for CPU speed (and RAM, if your system needs it) was all that was required to enable my ageing 1GHz 12″ PowerBook to run with v1.5.4, but the MDD Dual 867 machine still needed a tweak. The MDD system is now running a supported graphics card (a Radeon 9800, but don’t worry: it was also hacked from the PC variant), so I don’t have any offsets for getting around the video detection code.
Only one edit is required to skip the speed test on the MDD:
0xbfc8: 40 9E 00 88 -> 48 00 00 80