Specifications

4-18 Chapter 2: BIOS setup
The following items appear only when the AI Tuning item is set to [Manual].
CPU Frequency [200]
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 400. Refer to the table below for
the correct Front Side Bus and CPU External Frequency settings.
PCI Express Frequency [Auto]
Allows you to select PCI Express frequency.
Conguration options: [Auto] [90] [91] [92] [93]... [150]
PCI Clock Synchronization Mode [Auto]
Selects the PCI Clock Synchronization mode.
Conguration options: [Auto] [33.33MHz]
FSB/CPU External Frequency Synchronization
Front Side Bus CPU External Frequency
FSB 1066 266 MHz
FSB 800 200 MHz
FSB 533 133 MHz
The following items appear only when the AI Tuning item is set to [Manual] or
[AI N.O.S.].
Selecting a very high DRAM frequency may cause the system to become
unstable! If this happens, revert to the default setting.
Available DRAM frequency options in various FSB settings
* Provided for overclocking purpose only.
 FSB Congurationoptions
Auto DDR2- DDR2- DDR2- DDR2- DDR2-
533 667 800 889* 1067*
FSB 1066 • • • • • •
FSB 800 • • • •