DFI CM33-TC User Manual page 20

Hardware Installation
Important:
• The frequency ratio of some processors shown in the table
may have been locked by the manufacturer. If you are using
this kind of processor, setting an extended ratio for the
processor will have no effect. The system will instead use its
factory default ratio.
• Most processors with frequency ratio greater than 8x have
locked frequency ratio therefore does not have the flexibility
of using extended ratio. If your processor does not have
locked frequency ratio, you can set SW1 according to the
desired ratio.
• The processors supported by the system board support
VID (Voltage Identification). The switching voltage regulator
on the system board will automatically set the voltage
regulator according to the voltage of the processor.