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Article #18204

16 Mhz 68000

#18204
From: jccf
Date: Tue, 18 Aug 1987 11:13
31 lines
1568 bytes
in Article 3757 : espen@well.UUCP (Peter Espen) writes :

>I would be interested in hearing some opinions from anyone out there who has
>had the TurboMax board (made by MacMemory) installed in their 512KE or Plus
>system. This board is advertised as follows:
>        -       16MHz 68000 Processor
>        -       Opt. 68881 Math CoProcessor
>
etc.


Since some time I'm planning to try the following: Take a Mac board, cut out
the 68000 CPU, and put in an fast brother of his, the 16 Mhz 68000.
Feed this fast CPU with the original (undivided) clock (about 15.7 Mhz).
Will It work, if not why ?
Some probable problems: Is disk I/O timed by the cpu, and if so, does the 
turbo-board has patches in ROM or RAM.
Are there other timing errors that might occur.
I'm using 120 ns rams, and don't expect timing errors in this area
'cause the RAM timing for the current Mac is 400 ns.

Other thing: where can I get a 16 Mhz 68000, and what will be the price of
this one?
Anybody any ideas?

Thanks in advance.

Piter Jonker,
Hilversum, Holland.

ihnp4!ihlpg!hvlpa!pjonker
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From: jccf@ihlpg.UUCP
Newsgroups: comp.sys.mac
Subject: 16 Mhz 68000
Message-ID: <3673@ihlpg.ATT.COM>
Date: Tue, 18-Aug-87 07:13:30 EDT
Article-I.D.: ihlpg.3673
Posted: Tue Aug 18 07:13:30 1987
Date-Received: Thu, 20-Aug-87 01:59:02 EDT
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 31
Keywords: Quick (and dirty?) Mac