From: Hauke Fath FYI, the German magazine "c't" had a small project a couple of years ago (7/1993) that replaced a 68020 with a 68030 and a few PALs. They still sell the PCBs for 40 DM + shipping. If you know how to deal with a soldering iron the PCB and a used '030 may be a lot cheaper than an MMU - and give you about 10% more speed, too. I'm going to scan through their web pages tomorrow ( , ) and give you details. You'd have to have the article (and an English translation of it, if needed), some experience with hardware and a GAL burner or a knowledgable friend, alternatively. Did that today, but the article I have in mind is too old for the web. =8) Anyway, here's a short overview: ------------------------------------------------------------------------------ Replacing a 68020 with a 68030 (c't 7/1993 p.202/3) The PCB contains two 114 pin PGA sockets (one for the '030, the other to plug the board into the motherboard's CPU socket), a 20V8 GAL that disables the '030's data cache when volatile memory areas are accessed (I/O), three 100nF capacitors and six 4k7 resistors. Given some soldering skill, the hardest part is probably the GAL; the article promised that a GAL programmed for the Macintosh II would be made available, but I didn't see it listed anywhere. Carsten Meyer, one of the authors, can be reached at cm@ct.heise.de -- he is THE Macintosh person within c't and can probably help. The board is sold by eMedia GmbH Phone +49-511-537295 Postfach 61 01 06 Fax +49-511-5352147 D-30601 Hannover EMail emedia@emedia.de Germany Web http://www.emedia.de It has the ID "9307202MBE" and costs 39.- DM; a xerox of the corresponding article (referenced by the board ID) is available for 5.- DM. Add shipping costs, and you'll end up with $50..$60; eMedia accept Visa, EuroCard and American Express. Disclaimer: I have no relation to Heise or eMedia other than that of a satisfied customer. If you're in doubt whether any of the information given is still valid, mail me at .