MSI P45 Diamond Series Manual page 69

FSB/DRAM Ratio
This item will allow you to adjust the FSB/Ratio of the memory.
Adjusted DRAM Frequency (MHz)
It shows the adjusted DDR Memory frequency. Read-only.
ClockGen Tuner
Press <Enter> to enter the sub-menu and the following screen appears.
CPU Clock Drive/ PCI Express Clock Drive
These items are used to select the CPU/ PCI Express clock amplitude.
CPU CLK Skew/ M CH CLK Skew
These items are used to select the CPU/ North Bridge chipset clock skew. They
can help CPU to reach the higher overclocking performace.
Adjust PCI Frequency (MHz)
This field allows you to select the PCI frequency (in MHz).
Auto Disable DIM M/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 (V)/ CPU GTL REF0/ CPU GTL REF1/ DRAM Voltage (V)/
DDR_VREF_CA_A/ DDR_VREF_CA_B/ DDR_VREF_DA_A/ DDR_VREF_DA_B/
MCH Voltage (V)/ MCH GTL REF/ VTT FSB Voltage/ ICH Voltage (V)
These items dispaly the power status of CPU, Memory, FSB and chipset. Read-only.
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.
BIOS Setup
3-23