Asus P4P8X SE P4P8X SE user's manual English version E1479 - Page 54

When you set the AI Overclocking Tuner item to [Manual], the related overclocking items appear. Configure System Frequency/Voltage AI Overclock Tuner CPU External Frequency (MHz) DRAM Frequency AGP/PCI Frequency (MHz) CPU VCore Voltage DDR Reference Voltage AGP VDDQ Voltage Performance Mode [Manual] [133] [333 Mhz] [Auto] [Auto] [Auto] [1.50V] [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. The values range from 100 to 400, use the plus (+) or minus (-) key to adjust the frequency. 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] [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. CPU VCore Voltage [Auto] Allows you to select a specific CPU VCore voltage. Configuration options: [Auto] [1.9500V] ... [1.5000V] Refer to the CPU documentation before setting the CPU VCore voltage. A very high Vcore voltage may severely damage the CPU! 2-16 Chapter 2: BIOS information