Chapter 3, Important – MSI 880G-E45 User Manual

Page 65

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MS-7576

Chapter 3

Onboard VGA Clock

This item will appear when Onboard VGA Over Clock sets to [Enabled]. It allows you

to adjust the onboard VGA clock.

HT Link Control

Press <Enter> to enter the sub-menu and the following screen appears.

HT Incoming/ Outgoing Link Width

These items allow you to set the Hyper-Transport Link width. Setting to [Auto],

the system will detect the HT link width automatically.

HT Link Speed

This item allows you to set the Hyper-Transport Link speed. Setting to [Auto], the system

will detect the HT link speed automatically.

Adjusted HT Link Frequency (MHz)

It shows the adjusted HT Link frequency. Read-only.

Adjust PCI-E Frequency (MHz)

This field allows you to select the PCIE frequency (in MHz).

Auto Disable DIMM/PCI Frequency

When set to [Enabled], the system will remove (turn off) clocks from empty DRAM/ PCI

slots to minimize the electromagnetic interference (EMI).

CPU VDD Voltage (V)/ CPU-NB VDD Voltage (V)/ CPU Voltage (V)/ CPU-NB Voltage

(V)/ DRAM Voltage (V)/ NB Voltage (V)/ HT Link Voltage (V)/ SB Voltage (V)

These items are used to adjust the voltage of CPU, Memory and chipset.

Spread Spectrum

When the mainboard’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.

Important

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.
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.

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