3.4.2CPU Ratio Setting [Auto]

Allows you to adjust the ratio between CPU Core Clock and FSB Frequency. Use the <+> and <-> keys to adjust the value.

Configuration options: [Auto] [06.0] [07.0] [08.0]

FSB/CPU External Frequency Synchronization

Front Side Bus

FSB 1600

FSB 1333

FSB 1066

FSB 800

CPU External Frequency

400 MHz

333 MHz

266 MHz

200 MHz

The following two items appear only when you set the Ai Overclock Tuner item to [Manual].

FSB 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 FSB frequency. You can also type the desired CPU 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.

PCIE Frequency [Auto]

Allows you to set the PCI Express frequency. Use the <+> and <-> keys to adjust the PCIE frequency. The values range from 100 to 180.

3.4.3FSB Strap to North Bridge [Auto]

When set to [Auto], the FSB Strap will be adjusted automatically by FSB Frequency and DRAM Frequency.

Congifuration options: [Auto] [200 MHz] [266 MHz] [333 MHz] [400 MHz]

3.4.4DRAM Frequency [Auto]

Allows you to set the DDR2/DDR3 operating frequency. The configuration options vary depending on the DIMMs you install on the motherboard.

(For DDR3 DIMMs) Configuration options: [Auto] [DDR3-533MHz] [DDR3-639MHz] [DDR3-667MHz] [DDR3-709MHz] [DDR3-800MHz]

[DDR3-852MHz] [DDR3-887MHz] [DDR3-1066MHz]

(For DDR2 DIMMs) Configuration options: [Auto] [DDR2-667MHz] [DDR2-800MHz] [DDR2-889MHz] [DDR2-1066MHz]

The DRAM Frequency configuration options vary with the FSB Frequency item settings.

Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting.

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Chapter 3: BIOS setup