User`s guide

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Motherboard User’s Guide
Frequency ControlFrequency Control
Frequency ControlFrequency Control
Frequency Control
This item enables you to set the clock speed and system bus for your system. The
clock speed and system bus are determined by the kind of processor you have
installed in your system.
Phoenix-AwardBIOS CMOS Setup Utility
Frequency Control
Item Help
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Menu Level
CPU Clock Ratio [8X]
Auto Detect PCI Clk [Enabled]
Spread Spectrum [Disabled]
CPU Clock [100 MHz]

F5:Previous Values F6:Fail-Safe Defaults F7:Optimized Defaults
: Move Enter: Select +/-/PU/PD:Value F10:Save ESC:Exit F1: General Help
CPU Clock Ratio (8X)
Enables you to set the CPU clock. The CPU clock ratio times the CPU Host/
PCI Clock should equal the core speed of the installed processor. (For unlock
Ratio CPU only.)
Example: CPU Clock Ratio 8
CPU Frequency
X100
Installed CPU Clock Speed 800 MHz
Auto Detect DIMM/PCI Clk (Enabled)
Spread Spectrum (Disabled)
If you enable spread spectrum, it can significantly reduce the EMI (Electro-
Magnetic Interference) generated by the system.
CPU Clock (100MHz)
Use the CPU Host Clock to set the frontside bus frequency for the installed
processor (usually 133 MHz, 100 MHz, or 66 MHz).
When this item is enabled, BIOS will disable the clock signal of free DIMM and
PCI slots.