Asus P5B Computer Hardware User Manual


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4-18 Chapter 2: BIOS setup
FSBTerminationVoltage[Auto]
Allows you to select the FSB termination voltagae or set it to auto for safe mode.
Conguration options: [Auto] [1.200V] [1.300V]
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
Refer to the CPU documentation before setting the CPU VCore voltage. A very
high Vcore voltage can severely damage the CPU!
The following items appear only when the AI Tuning item is set to [Manual] or
[AI N.O.S.].
MemoryVoltage[Auto]
Allows you to select the memory voltage or set it to auto for safe mode.
Conguration options: [Auto] [1.80V] [1.90V] [2.00V] [2.10V]
CPUVCoreVoltage[Auto]
Allows selection of the CPU VCore voltage. The conguration options vary
depending on the CPU installed. Setting to Auto allows the BIOS to detect the
VCore voltage of the CPU installed.
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