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Old 20 October 2019, 13:03   #17
Kin Hell
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Join Date: Mar 2009
Location: Cornwall, UK
Posts: 702
The V8.5 ROM is required for a Version 2.4 of the card to be able to see 256Mb & one of the smaller GAL's require replacing with newer code.

I remember getting someone to program a new GAL for me, but it killed the card entirely, because the guy writing it didn't close the chip correctly during the writing process. After writing another for me, the card worked okay but still wouldn't show me anything right when using 16Mb SIMM's.

Not entirely sure if a Version 2.3 of the Z3 will work at all for a 256Mb configuration.

A shame there is no one around from these Hardware Days now long gone.
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