The Mac ROM-inator Kit replaces the stock 64K or 128K of ROM in a compact Macintosh with a full 1 MB of flash memory. Once installed, the flash ROM’s contents can be updated from within the running Macintosh, allowing for a bootable ROM disk and crazy customization possibilities.
The Mac ROM-inator Kit has been discontinued, but don't despair! See the Mac ROM-inator project page for information on how to make your own kit.
The kit includes preprogrammed flash chips with the following ROM changes as defaults. Any of them can be changed by updating the flash memory with a simple GUI tool.
- Startup beep is replaced by a glass “ping”
- Happy Mac icon is replaced by a Mac wearing sunglasses
- Pirate icon is displayed while waiting to load the ROM disk
- ROM disk image including System 6, utilities, and games
- 128K ROM code turns a Mac 128K or 512K into a 128Ke or 512Ke
The ROM-inator is a descendant of Rob Braun’s original Mac Plus ROM Adapter and disk driver.
The Macintosh Plus, 512Ke, 512K, and 128K all support the Mac ROM-inator. Due to the way the ROM-inator works, some software running on a ROM-inator-equipped Mac 128K or 512K may think it’s running on a Mac Plus.
- ROM-inator circuit board, with SMD parts pre-soldered
- Pair of preprogrammed 32-pin Flash ROM chips
- Pair of 32-pin IC sockets
- Machined pin headers (for logic board socket insertion)
- 0.1 inch male headers
- Length of wire
You’ll need a soldering iron, solder, and wire cutters to complete the kit. All the kit components are 0.1 inch through-hole parts. Some closely-spaced headers may be slightly tricky, but nothing the average solder-aware hobbyist should have trouble with.
Please visit the Mac ROM-inator project page for complete details, usage information, assembly instructions, and downloads.