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Author Topic: ACA1231/42 Accelerator card and possible PCMCIA problem  (Read 1890 times)

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Offline desiv

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Quote from: outrun78;691733
I was wondering if any users on here have had any problems with the ACA1231/42 accelerator card and the PCMCIA port on an A1200?  
Not me (ACA1230/28) and not that I've heard..
Quote from: outrun78;691733
I used to have a Turbo 1230LC card which with the 4MB ram worked okay with my Archos Overdrive CDROM, however whenever I placed the jumper to 8MB on my old card this knocked out the CDROM and i was aware that this was a problem with the accelerator itself.

Not really the accelerator's problem.   Kickstart 3.1 intentionally disables the PCMCIA slot if RAM at a certain address range is over 4M to prevent possible conflicts.
Quote from: outrun78;691733
I changed the accelerator card recently to a brand new 64MB ACA1231/42 which i was assured was PCMCIA compatible,
It is.  The ACA series doesn't use the conflicting memory space...
Quote from: outrun78;691733
However I am still experiencing the same problem and of course on this new accelerator card I am unable to downgrade the memory as it is built in.
You can disable the fast RAM I think (is there an ACATUNE option for that?) or possibly use a degrader software to do that, but it's unlikely to help.  This likely isn't a PCMCIA / RAM conflict, as mentioned above.

I have just acquired a Surf Squirrel PCMCIA SCSI card with a CDRom attached and that works with my ACA1230.

I'm wondering if the Archos driver has some timing conflicts with the ACA.
There are a lot of options in the ACATUNE program; one of those might help with compatibility...

desiv
Amiga 1200 w/ ACA1230/28 - 4G CF, MAS Player, ext floppy, and 1084S.
Amiga 500 w/ 2M CHIP and 8M FAST RAM, DCTV, AEHD floppy, and 1084S.
Amiga 1000 w/ 4M FAST RAM, DUAL CF hard drives, external floppy.