Manual

3-22
BIOS Setup
MS-7660
Chapter 3
BIOS Setup
MS-7660
Chapter 3
HT Lnk Speed
Ths tem allows you to set the Hyper-Transport Lnk speed. Settng to [Auto], the sys
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tem wll detect the HT lnk speed automatcally.
Adjusted HT Lnk Frequency (MHz)
It shows the adjusted HT Lnk frequency. Read-only.
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 DRAM/ PCI
slots to mnmze the electromagnetc nterference (EMI).
CPU VDD Voltage (V)/ CPU-NB VDD Voltage (V)/ CPU Voltage (V)/ CPU-NB Voltage
(V)/ CPU PLL Voltage (V)/ CPU DDR-PHY Voltage (V)/ DRAM Voltage (V)/ DDR VTT
Voltage (V)/ NB Voltage (V)/ NB PCI-E Voltage (V)/ SB Voltage (V)/ HT Lnk 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.
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
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clocked processor to lock up.
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