ECS P5SD-B Plus Manual page 36

ŸP Rated CPUs
Cyrix, IBM and AMD all make Pentium-class CPUs that are performace rated at an
Intel Pentium equivalent speed but actually may have a slower internal clock speed.
This 'P' rating is used to indicate the CPU's performance rather than its internal clock
speed. For example, the Cyrix/IBM P200 has an actual internal clock speed of
150MHz . If you install a CPU of this type, make sure you set the mainboard for the
actual internal clock speed of the CPU, not its P rating.
ŸThe CPU Settings will be revised according to CPU manufacturer's new product. For
details please refer to the CPU manufacturer or vendor's information.
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