
3-22
MS-7046 M-ATX Mainboard
Frequency/Voltage Control
The items in Frequency/Voltage Menu includes some important settings of CPU, PCI
Express, PCI Slots, DRAM and overclocking functions.
Current CPU Clock
These two items show the current clocks of CPU. Read-only.
Adjust CPU Ratio
This item allows you to adjust the CPU ratio. The setting range depends on the CPU
you installed.
Auto Detect PCI Clk
This item is used to auto detect the PCI slots. When set to [Enabled], the system will
remove (turn off) clocks from empty PCI slots to minimize the electromagnetic inter-
ference (EMI). Settings: [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,
select the desired range for EMI reduction. Remember to disable Spread Spectrum
function 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.
MSI Reminds You...
Change these settings only if you are familiar with the chipset.
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