If you are using an unlocked CPU, the item CPU Ratio appears under the AI Overclock Tuner item. You may select your desired ratio from the available options.

CPU Ratio [12]

This field sets the ratio between the CPU Core Clock and the Front Side Bus (FSB) Frequency.

If an invalid ratio is set in CMOS, the actual and setpoint values may differ.

When you set the AI Overclocking Tuner item to [Manual], the related overclocking items appear.

Configure System Frequency/Voltage

AI Overclock Tuner

[Manual]

CPU External Frequency (MHz)

[100]

CPU Ratio

[12]

DRAM Frequency

[Auto]

AGP/PCI Frequency (MHz)

[Auto]

CPU VCore Offset to .IV

[Disabled]

DDR Reference Voltage

[Auto]

AGP VDDQ Voltage

[1.50V]

Select Screen

Select Item

+- Change Option

F1 General Help

F10 Save and Exit

ESC Exit

CPU External Frequency (MHz) [XXX] (value is auto-detected)

Indicates the frequency sent by the clock generator to the system bus and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple equals the CPU speed. The value of this item is auto-detected by BIOS and is not manually configurable. The values range from 100 to 400. Refer to the following table for the correct Front Side Bus and CPU External Frequency settings.

DRAM Frequency [Auto]

Allows you to set the DDR operating frequency. Configuration options: [266 MHz] [333 MHz] [400 MHz] [Auto]

AGP/PCI Frequency (MHz) [Auto]

Allows you to adjust to a higher AGP/PCI frequency for better system performance and overclocking capability. Configuration options: [Auto] [66.66/33.33] [72.73/ 36.36] [80.00/40.00]

Selecting a very high AGP/PCI frequency may cause the system to become unstable! If this happens, revert to the default setting.

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Chapter 2: BIOS information