SDRAM PC100 memory modules

168-pin DIMM
144-pin SODIMM

PC100 is a faster than PC66 main memory bus, transferring data at 100MHz. Its speed is synchronous, meaning that it is directly dependent on the clock speed of the entire system. PC100 represents about a 50% theoretical improvement in speed over PC66 memory modules. Tests have shown a typical speed increase of over 20%. All SDRAM is backward compatible and can run at any bus speed slower than it is rated to run. So, a PC100 SDRAM DIMM is capable of running at 100MHz and 66MHz. Keep in mind that your memory run will only run as fast as the slowest component installed. If you install PC100 memory on a system with a 66MHz front side bus, the memory will only run at 66MHz.

168-pin DIMM

144-pin DIMM

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