DFI 586ITX User Manual page 19

clock speed is the commonly used speed of Intel processors in the market
and is the actual operating clock of the processor (external bus clock x
frequency ratio = internal clock speed).
AMD processors use the PR-rating system which is the overall processor
performance rating. Under the system, these processors slightly outperform
Intel' s Pentium processors.
Jumpers JP13 and JP15 are used to set the voltage of your processor.
Make sure these jumpers are set correctly, otherwise your system will hang.
The table below shows the External System Bus Clock of the CPUs sup-
ported by the system board and their corresponding PCI Clock and ISA Bus
Cl o ck.
External System Bus Clock
60MHz
66MHz
PCI Clk ISA Bus Clk
30MHz 7.5MHz
33MHz 8.25MHz
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