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HP 71B RAM: has anybody big ones to sell?
06-18-2021, 12:33 PM
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rprosperi Offline
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RE: HP 71B RAM: has anybody big ones to sell?
You cannot add 512KB RAM to a 71B as 512KB is the entire address space and some of that is taken up for system ROMs, buffers, I/O, etc.

The largest standard (non-custom) RAM modules made for the 71B were 128KB for the Card Reader port and 64KB for the front ports.

FRAM71B modules, available several times in the past but AFAIK are no longer available, could most easily provide the maximum amount of RAM, IIRC it's about 320KB (with HP-IL module installed).

What do you need so much 71B RAM for, what is the application?
--Bob Prosperi
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RE: HP 71B RAM: has anybody big ones to sell? - rprosperi - 06-18-2021 12:33 PM



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