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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Jose on May 04, 2007, 08:42:19 PM
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Are those rare ? I've always heard that latest rev. A1200 boards were made to take newer chip revisions that never came out (hence the timing problems) but I got a rev. 2b here that has a diferent Budgie then other boards I've seen, wich were rev0.
So could it be that some few boards were actually made with the right chips ?
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Nope, not rare.
There were 3 variants that I know of:
Rev A
Rev 0
Rev 1
No idea what the differences between them are.
Here are some examples of date codes taken from the photo's I could find on the net.
Rev A - Week 48 1993
Rev A - Week 05 1994
Rev 0 - Week 52 1992
Rev 0 - Week 06 1993
Rev 0 - Week 10 1993
Rev 0 - Week 11 1994
Rev 1 - Week 50 1995
As well as being 3 revisions, there were at least two variants (-01 and -02) again I have no idea what the difference between the two are.
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Judjing by Eyetechs info on they're old site they're all buggy I guess. Maybe we could ask Dave Haynie:)
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Jose wrote:
Maybe we could ask Dave Haynie :-)
He probably wouldnt know. Dave Haynie was in a department called SYSTEMS GROUP at commodore. They just "thought stuff up" they rarely implemented anything at silicon level. Just Gate-Arrays.
We need someone from CSG (Commodore Semiconductor Group). I'd love to get my hands on some of the information about the revisions of different chips, bond-out options, packaging.
Trying to find out the differences between Agnus chips is almost impossible.