Thanks for the replies everyone and sorry I've given little info on the mainboard, truth is I don't know what it is, there is no maker/brand on it. Yes I guess I'll leave this board alone then as it works fine and keep looking for a 25. I've never come across one for sale. Would love one as the 286 …

Hiya I recently picked up a motherboard with a 20mhz Harris 286 in the slot. I also own a ton of 25mhz Harris 286 CPU's. I guess I can put a 25mhz chip in a 20mhz board but it'll still run at 20mhz. The other IC's say 20mhz on them. There is a 40mhz crystal as you'd expect, but has anyone with …

Sure thing, just grabbed a few frames and attached them as Gifs. I know it's not quite Doom Eternal but this was the 90's and I was just a wee boy!

Well, hello. This is my first post although I've visited this site before looking for information. Big fan of older machines, and Hitchhikers as it happens. I grew up on XT's and upwards, still got lots of old machines now. Anyway, back when I were a nipper, I was rather fond of programming games …