Intel KM4AM Computer Hardware User Manual


 
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MS-6734 M-ATX Mainboard
Use this menu to specify your settings for frequency/voltage control.
Frequency/Voltage Control
Auto Detect DIMM/PCI Clk
This option allows you to enable/disable the feature of auto detecting the clock
frequency of the installed DIMM/PCI bus. The settings are: Enabled, Disabled.
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,
activate the Spread Spectrum for EMI reduction. Remember to disable Spread Spec-
trum if you are overclocking because even a slight jitter can introduce a temporary
boost in clockspeed which may just cause your overclocked processor to lock up.
Options: Disabled, +/-0.25%, +/-0.35%, +/-0.50%, +/-0.75%.