
Originally Posted by
WindowsKiller
I haven't done any testing yet but noticed that not all games use the same amount of RAM. Heat of Eleven, for example, has 8 MB of RAM (that's 8 chips on the upper board), while some of the others only have 4 MB. So one cause for a game to fail on the "wrong" hardware is definitively lack of memory. Heat of Eleven could never work on a board with only 4 MB, since the executable file alone is over 7 MB big. It would most likely display a hardware error.
Apart from that, the upper board is the same for all games. It doesn't contain anything else than the basic M2 hardware.
The interface board (the one with the JAMMA connector) should be fully identical for all games also, I wasn't able to find any differences between my Heat of Eleven board and any of the others for which photos are available.
So, only two things left: The BIOS ROM and the sub board. Now one could hastily say that the BIOS is tied to the game, but that can't be the case. The five released M2 arcade games are only using two different BIOS'es, so there's no connection between the BIOS and the game(s) you can play on that hardware.
Conclusion: Whether a different game runs on the hardware solely depends on the amount of RAM on the top board and the installed sub board. Heat of Eleven uses an RTC sub board, no ideas about the other games. If you read this, pitsunami, please post what sub boards the other games use. There should be at least another one that uses an RTC board as well, which would be the first to try on the Heat of Eleven hardware. :)
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