Configure System Frequency/Voltage

AI Overclock Tuner

[Manual]

CPU External Frequency (MHz)

[100]

DRAM Frequency

[Auto]

AGP/PCI Frequency (MHz)

[Auto]

CPU VCore Voltage

[Auto]

Performance Mode

[Auto]

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.

Table 2.4.1 FSB/CPU External Frequency Synchronization

Front Side Bus

CPU External Frequency

FSB 800

200 MHz

FSB 533

133 MHz

FSB 400

100 MHz

DRAM Frequency [Auto]

Allows you to set the DDR operating frequency depending on the CPU installed. Configuration options: [266 MHz] [Auto]: for FSB 400 CPU, [333 MHz] [266MHz] [Auto]: for FSB 533 CPU, [533MHz] [500 MHz] [400 MHz] [320 MHz] [266 MHz] [Auto]: for FSB 800 CPU.

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.

CPU VCore Voltage [Auto]

Allows you to select a specific CPU VCore voltage. Configuration options: [Auto] [1.9500V] [1.9250V] [1.9000V] [1.8750V] [1.8500V] [1.8250V] [1.8000V] [1.7750]

[1.7500V] [1.7250V] [1.7000V] [1.6750V] [1.6500V] [1.6250V] [1.6000V]

Refer to the CPU documentation before setting the CPU VCore voltage. A very high Vcore voltage may severely damage the CPU!

ASUS P4P800S SE motherboard user guide

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