Well, it looks like one of those memory/multi-IO/clock boards like the AST RAMPACK+. I would take a look at this site (which you might already know):
https://stason.org/TULARC/pc/memory-cards/index.html When I was looking for jumpers, etc., for both the AboveBoard AT and BOCARAM I have, I started here. Maybe if you browse the links, something will pop-up. I know that these boards often have special drivers for expanded memory; extended memory should just "show up". I would hope that the other ports/devices (clock, parallel, serial and game) are at standard PC addresses. Rich On 10/15/20, 6:59 PM, "cctalk on behalf of Sean Ellis via cctalk" <[email protected] on behalf of [email protected]> wrote: Hey all, I got this (currently exploded) mystery RAM, RTC, and I/O board out of a dead Sanyo luggable the other night, and once I replace the burned up tantalums I'd like to put it in my 5150 so I can get a full 640k of RAM. Question is, does anyone know what this board is? It's a completely anonymous board with not even an FCC ID to go off of. I'm assuming the RAM is at least strapped right; all the banks are full which should be 384k, and the Sanyo was a 256k machine = 640k. Here's a couple pictures; one's an actual picture of the card and the other is a simplified TULARC/TH99-esque vector of what's on the board. https://i.imgur.com/WhO4cco.jpg https://i.imgur.com/uBCkv5G.png
