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HP 9000 series 200/300 RAM board 7.5MB
Price: US $220.00
This is a board designed by David Kuder and posted on the Vintage HP computer group.
The card is for HP 9000 S200/S300 systems and provides 8MB of SRAM chips which by default is configured to have 7.5MB available to the system.
The BOM alone for these is over $100 mostly due to expensive SRAM chips and gold plating.
The boards were made for a project to expand the HP 3852A RAM but this board addressing is not compatible with the HP 3852A while having the exact same pin out. These are compatible with HP 9000 computers series 200 and 300 .
Compatibility :
9826, 9836, 9920, 9000/237, 9816 or 9000/217 as well as 310 and 320. Not compatible with 330 and later models.
