Mac II ROM Interchangeability? — #1 I believe the SE/30, and IIx ROMs are identical. Since the Mac II can be upgraded to FDHD, does that also upgrade it to the IIx ROM? I know the SE/30 can use a IIfx and IIsi ROM.… 68kMLA 68k by Mac128 Sun, 20 Sep 2009 - 23:48