MSI 915G Combo User Manual page 60

MS-7058 ATX Mainboard
Adjust PCI Express Frequency (for 915P only)
This item allows you to select the PCI Express frequency (in MHz). Select the number
between [100]~[133] for needed frequency.
Adjust CPU Voltage (V)
The settings are used to adjust the CPU clock multiplier (ratio) and CPU core voltage
(Vcore). These settings offer users a tool to overclock the system.
Adjust DDR Voltage (V)
Adjusting the DDR voltage can increase the DDR speed. Any changes made to this
setting may cause a stability issue, so changing the DDR voltage for long-term
purpose is NOT recommended.
Adjust NB Voltage (V)
NorthBridge voltage is adjustable in the field, allowing you to increase the perfor-
mance of your NorthBridge when overclocking, but stability may be affected.
MSI Reminds You...
The settings shown in different color in CPU Voltage, DDR Voltage and
NB Voltage help to verify if your setting is proper for your system.
Gray: Default setting.
White: Safe setting.
Yellow: High performance setting.
Red: Not recommended setting and the system may be
unstable.
Changing CPU Voltage, DDR Voltage and NB Voltage may result in the
instability of the system; therefore, it is NOT recommended to change
the default setting for long-term usage.
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 clock speed which may just cause your overclocked processor to lock up.
Options: [Disabled], [Enabled].
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