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From: tomlinson@elec.canterbury.ac.nz (M. Tomlinson)
Newsgroups: comp.sys.amiga.misc
Subject: Re: Hardware/Software Questions: New A1000 owner!
Message-ID: <1991Apr15.151058.463@csc.canterbury.ac.nz>
Date: 15 Apr 91 03:10:57 GMT
References: <KENTD.91Apr12133449@zappa.FtCollins.NCR.com> <3159@mtecv2.mty.itesm.mx> <1991Apr15.094505.458@csc.canterbury.ac.nz>
Sender: tomlin@betelgeux (M. Tomlinson)
Distribution: comp
Organization: University of Canterbury, Christchurch, New Zealand
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Nntp-Posting-Host: betelgeux.elec.canterbury.ac.nz


> > kentd@FtCollins.NCR.com (Kent.Dalton) writes:
> >
> >    A RUMOR: A guy said that it's possible to plug
> > an A2000 cpu slot accelerator into the expansion
> > slot of an a1000 or a500, just by changing the
> > gender. Can anybody corroborate this?
> 
> A local hardware hacker (Mark Tomlinson, the person responsible for IBeM,
> the PC emulator) has a CBM 2630 board  plugged into his A500, and it works
> just fine. As far as I know, the board he built to do it is a straight
> gender changer, though he _might_ have had to shift one line (like I'm
> just a programmer ya know:-)

As a matter of fact, the only line missing on the A500 expansion socket is
a 7M clock line.  I had to put a small connection inside my A500 to bring
this out, but REV6 motherboards actually have a jumper inside them for it.

Apart from that, the only thing to watch for is DMA (my HD doesn't use any, so
that made it easier).

 - Mark Tomlinson

e-mail: tomlinson@elec.canterbury.ac.nz