PC100 RAM
The newest DIMM-modules include a EPROM-chip holding information about the module. This
chip works as a SPD (Serial Presence Detect) - a unit storing information about the RAM type.
The idea is that BIOS can read these information and this way tune the system bus and the
timings for a perfect CPU-RAM performance.
With BX chip set the system bus speed has come up to 100 MHZ. This puts new focus on the
quality of the RAM modules. Hence Intel has made a new standard called PC100. Only
SD-RAM modules that are constructed according to these standards are guaranteed to work at
100 MHZ. In some articles this new RAM is described at 125 MHZ SD-RAM.
The newest DIMM-modules include a EPROM-chip holding information about the module. This
chip works as a SPD (Serial Presence Detect) - a unit storing information about the RAM type.
The idea is that BIOS can read these information and this way tune the system bus and the
timings for a perfect CPU-RAM performance.
With BX chip set the system bus speed has come up to 100 MHZ. This puts new focus on the
quality of the RAM modules. Hence Intel has made a new standard called PC100. Only
SD-RAM modules that are constructed according to these standards are guaranteed to work at
100 MHZ. In some articles this new RAM is described at 125 MHZ SD-RAM.
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