Computer Computer Hardware User Manual

3-26
MS-6775 ATX Mainboard
Use this menu to specify your settings for frequency/voltage control.
Spread Spectrum
When the motherboard’s 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, select one of the options for EMI
reduction. Remember to disable Spread Spectrum if you are overclocking
because even a slight jitter can introduce a temporary boost in clock speed
which may just cause your overclocked processor to lock up. Available options:
+/-0.25%, +/-0.5%, +/-0.75%, Disabled.
CPU FSB Clock
This item allows you to select the CPU Front Side Bus clock frequency (in
MHz) and overclock the processor by adjusting the FSB clock to a higher
frequency. Select the number between 100~280 for needed frequency.
Frequency/Voltage Control