S-100 Mystery board

From: Barry A. Watzman <Watzman_at_ibm.net>
Date: Sun Feb 28 21:19:24 1999

I bought an S-100 card today at a hamfest for $1.00, now can someone tell me what it is ?

It's a "65k byte SupeRam 2" P65D2 Rev. C by PIICEON, Inc.

It has 64k of DRAM on it, 4 rows of 8 4116's, but the rest of the board does not look very "Ram-like", AND it has a 34-pin board edge connector at the top of the board. I realize that this suggests a 5" floppy drive interface, but a combined RAM and FDC card ????? Plus, the edge connector is VERY un-floppy like, normally a floppy connector would have half of the pins being ground, this clearly looks like it has active signals on almost all 34 lines.

Anyone who has information, it would be appreciated. I'd most like to get a manual and switch settings [there are FOUR dip switches on this thing], also the IC at 9B is missing and the board screening does not identify what should go there.

Regards,
Barry Watzman
Received on Sun Feb 28 1999 - 21:19:24 GMT