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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.
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.
FSB/CPU External Frequency Synchronization
Front Side Bus
FSB 1066
FSB 800
FSB 533
PCI Express Frequency [Auto]
Allows you to select PCI Express frequency.
Configuration options: [Auto] [90] [91] [92] [93]... [150]
PCI Clock Synchronization Mode [Auto]
Selects the PCI Clock Synchronization mode.
Configuration options: [Auto] [33.33MHz]
The following items appear only when the AI Tuning item is set to [Manual] or
[AI N.O.S.].
4-18
Auto
DDR2-
DDR2-
533
667
•
•
•
•
•
•
CPU External Frequency
Configuration options
DDR2-
DDR2-
800
889*
•
•
•
266 MHz
200 MHz
133 MHz
DDR2-
1067*
•
Chapter 2: BIOS setup
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