Strange Nubus Graphics card

Likely because they fetch some cash when sold separately.
The chip is needed for the card to work.
Probably when the gold top chip recycling craze was going on because Nubus cards were not worth much back then.

Years ago, I seen a metal plastic trashcan full of old EISA/ISA/VLB/Zorro cards where the "gold" fingers were cut off and the cards were chucked into the barrel. Today just a couple working VLB cards would have been worth more than that guy got for all the gold-plated fingers.
 
Could you share the ROM of your card? That would likely be useful to turn 19" cards into 21" cards and figuring out where the configuration data for the TMS34020 is stored by comparing 19" and 21" variants.
Did you ever get that dump? I'd love to try others resolutions!!!
 

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