He didn't specify if they were surface mount. Most of my old computers are pre-pentium, Bios is in normal sized chips. I never had the urge to check and see what kind. Might be Eproms for all I know, but I do remember a grey sticker stating BIOS and version #. Surface mount? Yeah, really low probability. If you don't damage it removing it, is your luck going to hold resodering it? For memories you really need a data sheet, too many critical little details, not that forgiving for trial and error. But if you have nothing better to do, and a good supply of chips, I'm sure there are many people interested in the results of the research.