MSI P31 Neo Series, User Manual, Page: 55 / 90

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MS-7392 Mainboard
Adjusted DDR Memory Frequency
It shows the adjusted DDR memory frequency. Read-only.
Adjust PCI-E Frequency
This field allows you to select the PCIE frequency (in MHz).
Auto Disable DIMM/PCI Frequency
W hen set to [Enabled], the system will remove (turn off) clocks from empty DIMM and
PCI slots to minimize the electromagnetic interference (EMI).
CPU Voltage
This item allows you to increase the CPU voltage.
Memory Voltage
Adjusting the memory voltage can increase the memory speed.
NB Voltage
Adjust the North Bridge chipset voltage.
VTT FSB Voltage
This item allows you to set the FSB VTT voltage.
SB I/O Power
Adjust the South Bridge I/O voltage.
SB Core Power
Adjust the South Bridge core voltage.
Spread Spectrum
W hen the motherboard
’
s clock generator pulses, the extreme values (spikes) of the
pulses create 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,
set to Enabled 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.
1. 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 value of Spread Spectrum for EMI reduction.
2. The greater the Spread Spectrum value is, the greater the EMI is reduced,
and the system will become less stable. For the most suitable Spread
Spectrum value, please consult your local EMI regulation.
3. 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.
Important