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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 133 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
FSB 1333
FSB 1066
FSB 800
FSB 533
PCI Express 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 PCIe frequency. You can also type the desired PCIe frequency using the
numeric keypad. The values range from 90 to 150.
FSB Termination Voltage [Auto]
Allows you to set FSB termination voltage or auto for safe mode.
Configuration options: [Auto] [1.20V] [1.30V] [1.40V] 1.50V]
MCH Chipset Voltage [Auto]
Allows you to set MCH chipset voltage or auto for safe mode.
Configuration options: [Auto] [1.125V] [1.175V] [1.225V] [1.275]
5-18
CPU External Frequency
333 MHz
266 MHz
200 MHz
133 MHz
Chapter 5: BIOS setup
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