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- From: ASanta-Pinter@ezin.net (Alex Santa-Pinter)
- Organization: Alex & Co.
- Date: Thu, 08 Feb 96 20:46:53 GMT
- Subject: Re: Extending A2000's ISA bus?
- Message-ID: <N.020896.144654.01@pool49.ezin.net>
- Newsgroups: comp.sys.amiga.emulations,comp.sys.amiga.hardware
- X-Newsreader: Quarterdeck Message Center [1.0]
- References: <1996Jan18.175931@miavx1>
- NNTP-Posting-Host: pool49.ezin.net
- Path: news.ezin.net!
-
-
- > I recently got an old 286 machine from a friend of mine which
- > doesn't work. I
- > figured I'd just use it for parts, but I noticed something
- > interesting.
- >
- > This machine is 'modular' in the way that the only circuit
- > board in the
- > computer is an ISA bus that has power from the power supply.
- > The CPU, memory,
- > and everything else expected on the motherboard are on two
- > separate cards, so
- > you could have bought an 8086 or 80286 and stuck it in the same
- > case. KIND of
- > like plugging a bridgeboard in and having it be connected to
- > the ISA bus.
- >
- > So in my eternal quest for packing too much stuff into my
- > machine, I wondered
- > if I could make some kind of o cable with ISA type connections
- > on either end,
- > and basically continue the ISA bus from my A2000 to this empty
- > PC.
- >
- > Would this work? I understand I'd probably have to not jump
- > the power lines
-
- You could jump almost everything, like you said, and add its own
- power supply.
- > from the ISA bus to avoid a short or something, but if just the
- > data/address/signal lines were connected...
- >
- It'll work if you keep your data lines (the "jumper") as short as
- possible (6" to 8" at most!!). You could drill small holes on edge
- connectors so as to solder a couple of pieces of ribbon cable and
- then do the same on the other end of the ribbon. It works, BUT KEEP
- IT SHORT!
-
- G'd luck
-