Msi X58M User Manual download pdf (Page 68)

3-22

BIOS Setup

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MS-7593

BIOS Setup

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MS-7593

CPU Ampltude Control/ PCI Express Ampltude Control

These tems are used to select the CPU/ PCI Express clock ampltude.

CPU CLK Skew/ IOH CLK Skew

These tems are used to select the CPU/ IOH chpset clock skew. They can help

CPU to reach the hgher overclockng performace.

Adjust PCI Frequency (MHz)

Ths eld allows you to select the PCI frequency (n MHz).

Adjust PCI-E Frequency (MHz)

Ths eld allows you to select the PCIE frequency (n MHz).

Auto Dsable DRAM/PCI Frequency

When set to [Enabled], the system wll remove (turn o) clocks from empty DIMM and

PCI slots to mnmze the electromagnetc nterference (EMI).

CPU Load Lne Calbraton

When set to [Enabled], system wll automatcally x the vcore droop ssue of CPU, and

the CPU can receve stable voltage n overclockng.

CPU Voltage (V)/ CPU Vcore/ CPU PLL Voltage (V)/ QPI Voltage (V)/ DRAM Voltage

(V)/ DDR_VREF_CA_A Voltage (V)/ DDR_VREF_CA_B Voltage (V)/ DDR_VREF_CA_

C Voltage (V)/ DDR_VREF_DQ_A Voltage (V)/ DDR_VREF_DQ_B Voltage (V)/ DDR_

VREF_DQ_C Voltage (V)/ NB Voltage (V)/ ICH Voltage (V)

These tems are used to adjust the voltage of CPU, Memory and chpset.

Spread Spectrum

When the manboard’s clock generator pulses, the extreme values (spkes) of the pulses

create EMI (Electromagnetc Interference). The Spread Spectrum functon reduces the

EMI generated by modulatng the pulses so that the spkes of the pulses are reduced to

atter curves. If you do not have any EMI problem, leave the settng at Dsabled for opt

mal system stablty and performance. But f you are plagued by EMI, set to Enabled for

EMI reducton. Remember to dsable Spread Spectrum f you are overclockng because

even a slght jtter can ntroduce a temporary boost n clock speed whch may just cause

your overclocked processor to lock up.

Important

If you do not have any EMI problem, leave the settng at [Dsabled] for optmal system

stablty and performance. But f you are plagued by EMI, select the value of Spread

Spectrum for EMI reducton.

The greater the Spread Spectrum value s, the greater the EMI s reduced, and the

system wll become less stable. For the most sutable Spread Spectrum value, please

consult your local EMI regulaton.

Remember to dsable Spread Spectrum f you are overclockng because even a slght

jtter can ntroduce a temporary boost n clock speed whch may just cause your over

clocked processor to lock up.

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Msi X58M User Manual Page 68

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