Asus P5QL - Manual (Page 50)

2-12 Chapter 2: BIOS information
Ai Overclock Tuner [Auto]
Allows selection of CPU overclocking options to achieve desired CPU internal frequency.
Select either one of the preset overclocking configuration options:
Manual - allows you to manually set overclocking parameters.
Auto - loads the optimal settings for the system.
The follow 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.
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 600. Refer to
the table below for the correct Front Side Bus and CPU External Frequency settings.
FSB / CPU External Frequency Synchronization
Front Side Bus CPU External Frequency
FSB 1600 400 MHz
FSB 1333 333 MHz
FSB 1066 266 MHz
FSB 800 200 MHz
FSB 533 133 MHz
PCIE Frequency [Auto]
Use the <+> and <-> keys to adjust the PCIE frequency. You can also type the desired
PCIE frequency using the numeric keypad. The values range from 100 to 160.
FSB Strap to North Bridge [Auto]
Allows you to adjust the FSB strap. Configuration options: [Auto] [200MHz] [266MHz]
[333MHz] [400MHz]
DRAM Frequency [Auto]
Allows you to set the DDR2 operating frequency. Configuration options: [Auto]
[DDR2-533MHz] [DDR2-639MHz] [DDR2-667MHz] [DDR2-709MHz] [DDR2-800MHz]
[DDR2-852MHz] [DDR2-887MHZ] [DDR2-1066MHz]
Setting a very high DRAM frequency may cause the system to become unstable. If this
happens, revert to the default settings.
DRAM Timing Control [Auto]
Allows selection of the DRAM timing configuration. Configuration options: [Auto] [Manual]
• The following items appear only when you set the [DRAM Timing Control] item to
[Manual].
• The configuration options for some of the following items vary depending on the DIMMs
you install on the motherboard.