Asus P5LD2 P5LD2 User's Manual for English Edition - Page 80
CPU Frequency [XXX], PCI Express Frequency [Auto], PCI Clock Synchronization Mode [Auto], DRAM
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The following item appears only when you set the A I O v e r c l o c k i n g item to [Manual]. CPU Frequency [XXX] Displays the frequency sent by the clock generator to the system bus and PCI bus. The value of this item is auto-detected by the BIOS. Use the < + > and < - > keys to adjust the CPU frequency. You can also type the desired CPU frequency using the numeric keypad. The values range from 100 to 450. 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 1066 FSB 800 FSB 533 CPU External Frequency 266 MHz 200 MHz 133 MHz DRAM Frequency [Auto] Allows you to set the DDR operating frequency. The available configuration options vary depending on the Front Side Bus settings. Refer to the table below for details. Available DRAM frequency options in various FSB settings FSB Auto FSB 1066 • FSB 800 • FSB 533 • DDR2400 • • • Configuration options DDR2- DDR2- DDR2- DDR2- 533 600* 667 711* • • • • • • • DDR2800* • DDR2889* • * Provided for overclocking purpose only. Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. PCI Express Frequency [Auto] Allows you to set the PCI Express frequency. This item is set to [Auto] by default. Configuration options: [Auto] [90]...[150] PCI Clock Synchronization Mode [Auto] Allows you to synchronize the PCI frequency with the PCI Express or CPU frequency. Configuration options: [To CPU] [33.33MHz] [Auto] 4-20 Chapter 4: BIOS setup