Chapter 4
4-26
Spread Spectrum
When the motherboard clock generator pulses, the extreme values (spikes) of
the pulses creates EMI (Electromagnetic Interference). The Spread Spectrum
function reduces the EMI generated by modulating the pulses so that the
spikes of the pulses are reduced to flatter curves. If you do not have any EMI
problem, leave the setting at
Disabled
for optimal system stability and
performance. But if you are plagued by EMI, setting to
Enabled
for EMI
reduction. Remember to disable Spread Spectrum if you are overclocking be-
cause even a slight jitter can introduce a temporary boost in clockspeed which
may just cause your overclocked processor to lock up.
speed of the processor relative to the external or motherboard clock speed.
DRAM Frequency
This setting shows the current frequency of DDR DRAM (read only).
CPU Ratio Selection
This setting controls the multiplier that is used to determine the internal clock
speed of the processor relative to the external or motherboard clock speed.
Use this menu to specify your settings for frequency/voltage control.
Frequency/Voltage Control
