Asus P5K-VM P5K-VM User's Manual for English Edition - Page 70
CPU Ratio Control [Auto], FSB Frequency [XXX], PCIE Frequency [Auto], DRAM Timing Control [Auto]
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Some of the following items appear when you set AI Overclocking to [Manual]. CPU Ratio Control [Auto] Configuration options: [Auto] [Manual] The following item appears when the CPU Ratio Control item is set to [Manual]. Ratio CMOS Setting [12] Use the and keys to select the CMOS ratio values from 6 to 12. FSB Frequency [XXX] Displays the frequency sent by the clock generator to the system bus and PCI bus. Use the and keys to adjust the FSB frequency. You can also type the desired FSB frequency using the numeric keypad. The values range from 200 to 800. Refer to the table below for the correct Front Side Bus and CPU External Frequency settings. FSB/CPU External Frequency Synchronization Front Side Bus FSB 1333 FSB 1066 FSB 800 CPU External Frequency 333 MHz 266 MHz 200 MHz PCIE Frequency [Auto] Allows you to set the PCI Express frequency. Configuration options: [Auto] [100] [101]~[149] [150]. DRAM Frequency [Auto] Allows you to set the DDR2 operating frequency. Configuration options: [Auto] [DDR2-667MHz] [DDR2-800MHz] [DDR2-1066MHz] Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. DRAM Timing Control [Auto] Allows you to set the DRAM timing control. Configuration options: [Auto] [Manual] The following items appear when you set the DRAM Timing Control item to [Manual]. 2-18 Chapter 2: BIOS setup