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fatwizard

Z-RAM-3D ram upgrage module.

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Hi all,  I bought a pig in a poke on eBay the other day.  It's a RAM upgrade board that was removed form a "working" ST.  It's called a "Z-RAM-3d/4Meg." by a company called Zubair Interfaces Inc.  There was no documentation with this item, but I also bought the motherboard the upgrade was originally installed on.  The motherboard had been scrapped out.  The socketed chips were removed and the RAM looks like it was removed with a chisel, but the attachment points for the ram upgrade were visible.  The problem is there are more connections coming from the upgrade module than there are attachment points on the motherboard.

 

So my hope is that someone here has, or has documentation, or really any information on this ram upgrade.

20190616_131902.jpg

20190616_131935.jpg

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There is nothing printed on the board under the shifter chip, but I suspect you are right about this.  I had actually found the document referenced, and I believe there are pieces missing.  Too bad.

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