MSI 870A Fuzion - Manual (Page 62)

3-22
BIOS Setup MS-7660
Chapter 3
BIOS Setup MS-7660
Chapter 3
HT Lnk Control
Press <Enter> to enter the sub-menu and the followng screen appears.
HT Incomng/ Outgong Lnk Wdth
These tems allow you to set the Hyper-Transport Lnk wdth. Settng to [Auto], the
system wll detect the HT lnk wdth automatcally.
HT Lnk Speed
Ths tem allows you to set the Hyper-Transport Lnk speed. Settng to [Auto], the sys-
tem wll detect the HT lnk speed automatcally.
Adjusted HT Lnk Frequency (MHz)
It shows the adjusted HT Lnk frequency. Read-only.
Adjust PCI-E Frequency (MHz)
Ths field allows you to select the PCIE frequency (n MHz).
Auto Dsable DRAM/PCI Frequency
When set to [Enabled], the system wll remove (turn off) clocks from empty DRAM/ PCI
slots to mnmze the electromagnetc nterference (EMI).
CPU VDD Voltage (V)/ CPU-NB VDD Voltage (V)/ CPU Voltage (V)/ CPU-NB Voltage
(V)/ CPU DDR-PHY Voltage (V)/ DRAM Voltage (V)/ NB Voltage (V)/ NB PCI-E Voltage
(V)/ SB Voltage (V)/ HT Lnk Voltage (V)
These tems are used to adjust the voltage of CPU, Memory and chpset.
Spread Spectrum
When the manboard’s clock generator pulses, the extreme values (spkes) of the pulses
create EMI (Electromagnetc Interference). The Spread Spectrum functon reduces the
EMI generated by modulatng the pulses so that the spkes of the pulses are reduced
to flatter curves.
Important
If you do not have any EMI problem, leave the settng at [Dsabled] for optmal system
stablty and performance. But f you are plagued by EMI, select the value of Spread
Spectrum for EMI reducton.
The greater the Spread Spectrum value s, the greater the EMI s reduced, and the
system wll become less stable. For the most sutable Spread Spectrum value, please
consult your local EMI regulaton.
Remember to dsable Spread Spectrum f you are overclockng because even a slght
jtter can ntroduce a temporary boost n clock speed whch may just cause your over-
clocked processor to lock up.
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