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From: thorha@Lise.Unit.NO (Thor Henning Amdahl)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: A590 and ancient accelerator problems
Keywords: A590, 68020
Message-ID: <1991May30.204145.18871@ugle.unit.no>
Date: 30 May 91 20:41:45 GMT
References: <1991May27.080406.10365@hkkk.fi>
Sender: news@ugle.unit.no
Reply-To: thorha@Lise.Unit.NO (Thor Henning Amdahl)
Organization: Norwegian Institute of Technology
Lines: 30

In article <1991May27.080406.10365@hkkk.fi>, heinola@hkkk.fi (Bror Heinola) writes:
|> 
|> 	I got my hands on this ancient accelerator board, originally
|> 	designed for A1000. It runs on 12MHz clock, with 12MHz 68020
|> 	and 68881 FPU. It has 32-bit wide memory expansion facility 
|> 	if daughtercard is added on top of accelerator board.

Try to use a syncron 14Mhz clock. I have made a syncron version of the
Lucas board which runs at 14Mhz and work with a 590. 

|> 	Drive led blinks, but screen stays grey. I tried it without
|> 	autoboot, still no luck. Without A590 system works fine, but
|> 	on power-on the screen is blue approx. 2 seconds and then 
|> 	machine boots up normally. 

Have you tried to use it without fastram ?


|> 
|> -- 
|> 
|> =<*>=-=<*>=-=<*>=-=<*>=-=<*>=-=<*>=-=<*>=-=<*>=-=<*>=-=<*>=-=<*>=-=<*>=-=<*>=
|> # Bror Heinola         # NetMail:                     # Public BBS system:  #
|> # Programmer           # heinola@karl.hkkk.fi         # Twilight Zone MBBS  #

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*   Thor Henning Amdahl      thorha@lise.unit.no                              *
*									      *
*   If it's stupid and it works, it ain't stupid                              *
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