SIMM Memory Boards Avertised ratings Capacity,pins, parity status ------------------------------------------------------ 1x9 1MB 30-pin parity 1x8 1MB 30-pin nonparity 1x3 1MB 30-pin parity 4x9 4MB 30-pin parity 4x8 4MB 30-pin nonparity 256Kx36 1MB 72-pin parity 256Kx32 1MB 72-pin nonparity 512Kx36 2MB 72-pin parity 512Kx32 2MB 72-pin nonparity 1x36 4MB 72-pin parity 1x32 4MB 72-pin nonparity 2x36 8MB 72-pin parity 2x32 8MB 72-pin nonparity Memory Type Number of Pins Bus Width Application ---------------------------------------------------------- SIMM 30 8 bits 286/386 SIMM 72 32 bits 485/Pentium I DIMM 168 64 bits Pentium II desktop