Asus Motherboard P5PL2-E User Manual page 76

The following item appears only when you set the AI Overclocking 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
DRAM Frequency [Auto]
Allows you to set the DDR operating frequency. The available configuration
options vary depending on the Front Side Bus settings. Configuration
options: [Auto] [DDR2-400MHZ] [DDR2-533MHZ].
Refer to the table below for details.
Available DRAM frequency options in various FSB settings
FSB
FSB 1066
FSB 800
* 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
CPU External Frequency
Auto DDR2- DDR2-
533 667
• • •
• • •
266 MHz
200 MHz
133 MHz
Configuration options
DDR2- DDR2-
800 889*
• •
•
DDR2-
1067*
•
Chapter 4: BIOS setup