MSI 975X PLATINUM User Guide - Page 68

BIOS Setup, Spread Spectrum - help

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BIOS Setup Important MSI Reminds You... The settings shown in different color in CPU Voltage, Memory Voltage and PCI Express Voltage help to verify if your setting is proper for your system. Gray: Default setting. Yellow: High performance setting. Red: Not recommended setting and the system may be unstable. Changing CPU Voltage, Memory Voltage and PCI Express 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 W hen 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. Important 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. 3-25

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3-25
BIOS Setup
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 tempo-
rary boost in clock speed which may just cause your overclocked processor to lock
up.
Important
Important
MSI Reminds You...
The settings shown in different color in
CPU Voltage
,
Memory Voltage
and
PCI Express Voltage
help to verify if your setting is proper for your system.
Gray:
Default setting.
Yellow: High performance setting.
Red:
Not recommended setting and the system may be
unstable.
Changing
CPU Voltage, Memory Voltage
and
PCI Express Voltage
may
result in the instability of the system; therefore, it is
NOT
recommended to
change the default setting for long-term usage.
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.