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