the red hill hardware guide

Classic main boards:

Golden oldies for 286 and 386

1993 Boards for 386 and 486

1994 Boards for 486 and Pentium

1995 Boards mostly for 486 and 5x86

1996 Boards for 6x86 and Pentium

1996 Boards mostly for 6x86 and Pentium

1997 Boards mostly 6x86, 6x86MX, C6 and Pentium MMX

1998 Boards 6x86MX, K6 and Pentium II.

1999 Boards K6-2, Pentium II, 6x86MX and Celeron.

2000 Boards Thunderbird, Celeron, K6-III and Athlon Classic.

2001 Boards Thunderbird, Coppermine and Duron.

2002 Boards Athlon XP and others.

Context and background:

Famous shonky boards.

Shapes, sizes and trends

Further reading the best mainboard sites

PCW8256 main board, 1985.