MSI MS-6567 User Manual page 60

Chapter 3
speed of the processor relative to the external or motherboard clock speed.
Spread Spectrum
When the motherboard 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, setting to Enabled for EMI
reduction. Remember to disable Spread Spectrum if you are overclocking be-
cause even a slight jitter can introduce a temporary boost in clockspeed which
may just cause your overclocked processor to lock up.
Unused PCI Slot/DIMM Clk
This setting enables you to stop or activate the clocks of unused PCI & DIMM
slots. When set to Stop, the system will remove (turn off) clocks from empty
PCI/DIMM slots to minimize the electromagnetic interference (EMI). Setting
options: Stop, Action.
CPU Vcore Adjust (V)
This setting is used to adjust the CPU core voltage (Vcore), making overclocking
possible.
Note: Changing CPU Vcore could lead to a unstable system;
therefore, it is NOT recommended to change the default setting for
long-term usage.
DRAM Vcore Adjust (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.
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