Pardon the necro, but I stumbled upon this thread and wanted to direct the OP to the Wikipedia article regarding both the socket in his mainboard and the 486 overdrive CPU's, which came in two flavors: From the 486 Overdrive Wikipedia article linked below: "Each 486 Overdrive typically came in 2 …

I just stumbled into one of these systems, factory built by "IMC Computers" with a model number of 286-9173. It was a Craigslist find, I assumed it was a 286 at first from the model number but when I cracked it open to check for green battery death inside was greeted by the gold cap "Next Gen" …

I love the way this sounds with Descent, and after a couple of listens I'm not as negative on how it sounds with Doom as I was when I first heard it compared to the S2. Love these low cost wavetable cards! Random semi-related question, have you ever considered a project to build an external serial …

Salvation Army find, this is as-found without any retrobrite, it's one of the cleanest retro systems I've found... guessing it lived a lot of it's later years in a laptop bag stuffed in the back of a closet long forgotten until someone passed away or had a serious spring cleaning. Main and backup …

Maybe you should consider building this as a device driver instead so it could be loaded from config.sys? Where I grew up, if someone buys me a free lunch I'm not inclined to tell them if I don't like the way it tastes, rather I appreciate the gesture and the full belly that I didn't have to pay …