There is some sort of old patch on AMD systems faster than 550mhz or something like that, lol.
I think some people used to slow em down to under whatever speed it was that caused a problem..if they couldnt find the patch.
I cant remember the exact details....seems I ran into it while working on a FIC VA-503 socket 7 board.
I see this ----> "If you are running Windows 95, you must get a patch from Microsoft before you upgrade your CPU. (Windows 95 had problems with AMD chips above 300 MHz.) If you are running Windows 98, make sure you upgrade to Windows 98 SE. (No particular reason for this, except that the original Win98 was unusually buggy)" here ---->
http://lowendpc.com/box/2001/1017.html
So I guess it was a win95 patch.
JP
also
I imagine it is something like this.....people got to used to working on Intel 440BX chipsets...so when working on other stuff they probably forgot to install proper drivers etc.
And possibly AMD wasnt quite 100% Intel compatible back then.
(its communism, plain and simple)