Mac II ROM Interchangeability? — #5 I think that there is some confusion here. The early Mac models have ROMs that are in a DIP package. Examples: 128K/512K, 512Ke/Plus, SE and SE FD/HD. Later Macs (SE/30 and IIfx) … 68kMLA 68k by Charlieman Mon, 21 Sep 2009 - 19:57