Frequency/Voltage Control - ECS PF4 Extreme User Manual

3.3-8 Frequency/Voltage 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
CPU Clock Ratio
AGP Voltage
CPU Voltage Control
X CPU Core Voltage
Auto Detect PCI Clk
Spread Spectrum
PCI EX/PCI Clock
CPU Clock
: Move Enter: Select
F5:Previous Values
CPU Clock Ratio [8X]
Enable you to set the CPU clock. The CPU colck ratio times the CPU Host/
PCI Clock should equal the core speed of the installed processor. (For unlock
Ratio CPU only.)
3-18

Frequency/Voltage Control

Item Help
[8X]
[1.500V]
[By Auto]
Menu Level
1.1125V
[Enabled]
[Disabled]
[Asyn]
[200MHz]
+/-/PU/PD:Value F10:Save ESC:Exit F1: General Help
F6:Fail-Safe Defaults F7:Optimized Defaults
Example: CPU Clock Ratio
CPU Clock
Installed CPU Clock Speed
AGP Voltage [1.500 V]
This item regulates the voltage delivered to the AGP.
CPU Voltage Control [By Auto]
If you are manually configuring the CPU clock, use this item to set the CPU
voltage for more stability. But we recommend the users keep this item to By
Auto.
• CPU Core Voltage:
Enables you to auto-detect the CPU core voltage.
Auto Detect PCI Clk [Enabled]
When this item is enabled, BIOS will disable the clock signal of free PCI slots.
Spread Spectrum [Disabled]
If you enable spread spectrum, it can significantly reduce the EMI (Electro-Magnetic
Interference) generated by the system.
PCI EX/PCI Clock [Asyn]
This item correlates to CPU Clock item; when set to Asyn, PCI EX/PCI Clock and CPU
Clock will not operate at the same clock; when set to Sync, PCI EX/PCI Clock and
CPU Clock will operate at the same clock.
CPU Clock[200MHz]
This item allows you to adjust the CPU clock to 200MHz. You can key-in the numbers
within the range to make a precise and ideal adjustment.
8
X200
1600 MHz