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C
HAPTER 5
Supplemental Information for the Adjust Motherboard Settings Page
System Clocks Group
The System Clocks section provides clocking control of the reference clock for the
Hypertransport Technology bus (HTT) or the front side bus (FSB), HT multiplier,
memory bus, and the reference clock for the AGP or PCI-Express bus.
Hints and Cautions
• Hints:
• When overclocking the system, it may be advantageous to increase the voltage
level of the components to provide more operating margin.
• For higher front side bus and memory bus adjustments, NVIDIA recommends
increasing (relaxing) the memory timings to improve stability.
• For higher front side bus and memory bus adjustments, NVIDIA recommends
decreasing the CPU multiplier to improve stability.
• Caution:
Increasing the voltage or the clock speed of a component may void its warranty
due to exceeding recommended specifications. NVIDIA and the board
manufacturer are not responsible for damage that may occur when component
tolerances are exceeded.
System Clock Settings
Reference Clock (HTT) or (FSB)
Use this slider to control the reference clock rate of the HTT bus or FSB, which will
also change the CPU core and memory bus frequencies. The ʺactual frequencyʺ
(shown at the right of the slider) will change as the slider is moved.
CPU Multiplier
The two values that determine the speed of the processor are the HTT bus (or FSB in
some cases) frequency and CPU multiplier. The CPU multiplier is not a dynamic
setting. The current multiplier setting is shown and may be changed in the BIOS
setup or from the Dynamic BIOS Access page (if available).