Frequency/Voltage Control - MSI 845PE-V2 Series Instruction Manual

Frequency/Voltage Control

Current CPU Clock
It shows the current clock of CPU. Read-only.
Adjust Memory Frequency
When it is set to [Manual] in High Performance Mode, user can place an artificial memory clock limit on
the system. Please note that memory is prevented from running faster than this frequency. Setting
options: [PC100], [PC133], [Auto].
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 interference (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.
CPU Clock
This item allows you to select the CPU Front Side Bus clock frequency (in MHz) and overclock the
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