Asus P4C800 Deluxe P4C800 Deluxe user manual English version E1224 - Page 81

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. 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] [Auto] [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 and is not manually configurable. The values range from 100 to 400. 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. ASUS P4C800 Deluxe motherboard user guide 4-15