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Home▸ Forums▸ 68kMLA▸ IIfx ROM SIMM in a IIsi . . . — #30
Post #30 by dougg3
Source Forum68kMLA
CategoryHardware
Post DateSat, 8 Oct 2011 - 19:00
Original URLhttps://68kmla.org/bb/threads/iifx-rom-simm-in-a-iisi.23908/
Post
Thanks for the info! I guess we'll just have to see what happens!

You guys are gonna love this one:

I just burned a Quadra 650 ROM dump onto my SIMM for fun. It boots the IIci! WITH the IIci's startup chime!

About this Macintosh still identifies it as a IIci. The only thing that's weird is I think it resets the SCSI bus or something, because my hard drive makes its initialization ticks twice (normally it does a few ticks while it's warming up). The blinking question mark comes up before the ticking is finished, but then a couple seconds later the hard drive finishes initializing, the happy mac appears, and the IIci boots right up.

Amazing, isn't it? I mean, the Quadra is a 68040 Mac. I assumed they would have just thrown out all the old Mac startup stuff, but it still works with the IIci. Does anyone else smell the need for us to create a Macintosh ROM compatibility matrix project? ;-)