Some usefull info
Pentium-M (centrino) - Celeron-M
Frequency to FID
FID = frequency / bus_speed (bus speed is usually 100 or 133 Mhz, depending on the model).
FID to Frequency
frequency = FID * bus_speed (in Mhz) (bus speed is usually 100 or 133 Mhz, depending on the model).
Voltage to VID
VID = (voltage - 700) / 16
VID to Voltage
voltage = (VID * 16) + 700 (in milivolts).