I have been scanning in a lot of manuals that I have that relate to computers that are not in my collectiion, but which may be unique, or nearly so. Today I scanned in the Sorbus Micro Handbook 1990 Update, which has information provided to Sorbus FEs who might service various microcomputers. There is info in there on all sorts of stuff, including motherboard jumper/switch info up through a PS/2 model 80, for example, and lots of other manufacturer's computers and expansion cards, stuff like IOMEGA, AST, Zenith Tandon, etc. etc. It can be found in my Google drive under my directory of things I have provided for bitsavers to snag: https://drive.google.com/open?id=0B2v4WRwISEQRWWFFdVpCZWFTZEU&resourcek… in subdirectory pdf/sorbus JRJ