Path: utzoo!mnetor!uunet!mcvax!unido!rmi!kkaempf
From: kkaempf@rmi.UUCP (Klaus Kaempf)
Newsgroups: comp.sys.amiga
Subject: Re: Piggyback CPU boards
Message-ID: <827@rmi.UUCP>
Date: 19 Dec 87 13:21:20 GMT
References: <1421@atkins.munsell.UUCP>
Reply-To: kkaempf@rmi.UUCP (Klaus Kaempf)
Organization: RMI Net, Aachen, W.Germany
Lines: 23


Sorry to post this, but i think this might be of interest for all.

A company in Germany produces such a board, with a 7.2 Mhz 68020 and
a 12 Mhz 68881, that replaces the 68000 directly. The unpopulated PCB
cost DM 50.-, fully populated and tested ca. DM 1000.-.
I don't have the address of the company with me know, but i can post it
if there's enough interest.

A friend of mine got this board for his Amiga A2000 last week. He is
about to write an article for a german amiga-magazine about his experience.

But the board and the A2000 don't seem to be close friends. Every 10 Minutes
to 2 hours the machine simply stops working and even refuses to boot.
It seems that the problem is with the DTACK timing. The A2000 is one of
the first that were available in Germany. A small label on the PCB board
says 'Production date Feb 87'.
Has this problem been solved with the B2000 ? Has anybody else experience
with a 68020 in his amiga ? Is there a solution for the older A2000 ?

Thanks in advance,

Klaus