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Chapter 2: BIOS setupChapter 2: BIOS setup
Chapter 2: BIOS setupChapter 2: BIOS setup
Chapter 2: BIOS setup
FSB/CPU External Frequency SynchronizationFSB/CPU External Frequency Synchronization
FSB/CPU External Frequency SynchronizationFSB/CPU External Frequency Synchronization
FSB/CPU External Frequency Synchronization
Front Side BusFront Side Bus
Front Side BusFront Side Bus
Front Side Bus
CPU External FrequencyCPU External Frequency
CPU External FrequencyCPU External Frequency
CPU External Frequency
FSB 1066 266 MHz
FSB 800 200 MHz
FSB 533 133 MHz
DRAM Frequency [Auto]DRAM Frequency [Auto]
DRAM Frequency [Auto]DRAM Frequency [Auto]
DRAM Frequency [Auto]
Allows you to set the DDR2 operating frequency.
Configuration options: [Auto] [DDR2-400MHz] [DDR2-533MHz]
[DDR-667MHz]
Selecting a very high DRAM frequency may cause the system to become
unstable! If this happens, revert to the default setting.
The following item appears only when you set the
AI OverclockingAI Overclocking
AI OverclockingAI Overclocking
AI Overclocking
item to [Manual].
CPU Frequency [XXX]CPU Frequency [XXX]
CPU Frequency [XXX]CPU Frequency [XXX]
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
400. Refer to the table below for the correct Front Side Bus and CPU
External Frequency settings.
PCI Express Frequency [Auto]PCI Express Frequency [Auto]
PCI Express Frequency [Auto]PCI Express Frequency [Auto]
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 [To PCI Express]PCI Clock Synchronization Mode [To PCI Express]
PCI Clock Synchronization Mode [To PCI Express]PCI Clock Synchronization Mode [To PCI Express]
PCI Clock Synchronization Mode [To PCI Express]
Allows you to synchronize the PCI frequency with the PCI Express or CPU
frequency. Configuration options: [To PCI Express] [Fixed 33.3MHz]
[Fixed 36.3MHz] [Fixed 40.0MHz]
Memory Voltage [Auto]Memory Voltage [Auto]
Memory Voltage [Auto]Memory Voltage [Auto]
Memory Voltage [Auto]
Allows you to select the DDR2 reference voltage.
Configuration options: [Auto] [1.812V] [1.904V]
Refer to the DDR2 documentation before adjusting the memory voltage.
Setting a very high memory voltage may damage the memory module(s)!