Asus P5K SE EPU User Manual - Page 81

CPU Ratio Control [Auto], FSB Frequency [XXX], PCIE Frequency [Auto], DRAM Frequency [Auto]

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Some of the following items appear when you set AI Overclocking to [Manual]. CPU Ratio Control [Auto] Configuration options: [Auto] [Manual] The following item appears when the CPU Ratio Control item is set to [Manual]. Ratio CMOS Setting [14] Use the and keys to select the CMOS ratio values from 6 to 12. FSB Frequency [XXX] Displays the frequency sent by the clock generator to the system bus and PCI bus. Use the and keys to adjust the FSB frequency. You can also type the desired FSB frequency using the numeric keypad. The values range from 200 to 800. Refer to the table below for the correct Front Side Bus and CPU External Frequency settings. PCIE Frequency [Auto] Allows you to set the PCI Express frequency. Configuration options: [Auto] [100] [101]~[149] [150]. FSB/CPU External Frequency Synchronization Front Side Bus CPU External Frequency FSB 1600 400 MHz FSB 1333 333 MHz FSB 1066 266 MHz FSB 800 200 MHz DRAM Frequency [Auto] Allows you to set the DDR2 operating frequency. Configuration options: [Auto] [DDR2-667MHz] [DDR2-800MHz] [DDR2-1066MHz] [DDR2-1200MHz] Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. ASUS P5K SE/EPU 4-17

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ASUS P5K SE/EPU
4-17
Some of the following items appear when you set
AI Overclocking
to [Manual].
CPU Ratio Control [Auto]
Configuration options: [Auto] [Manual]
The following item appears when the
CPU Ratio Control
item is set to
[Manual].
Ratio CMOS Setting [14]
Use the <+> and <-> keys to select the CMOS ratio values from 6 to 12.
FSB Frequency [XXX]
Displays the frequency sent by the clock generator to the system bus and PCI
bus. Use the <+> and <-> keys to adjust the FSB frequency. You can also type
the desired FSB frequency using the numeric keypad. The values range from 200
to 800. Refer to the table below for the correct Front Side Bus and CPU External
Frequency settings.
PCIE Frequency [Auto]
Allows you to set the PCI Express frequency.
Configuration options: [Auto] [100] [101]~[149] [150].
FSB/CPU External Frequency Synchronization
Front Side Bus
CPU External Frequency
FSB 1600
400 MHz
FSB 1333
333 MHz
FSB 1066
266 MHz
FSB 800
200 MHz
DRAM Frequency [Auto]
Allows you to set the DDR2 operating frequency.
Configuration options: [Auto] [DDR2-667MHz] [DDR2-800MHz] [DDR2-1066MHz]
[DDR2-1200MHz]
Selecting a very high DRAM frequency may cause the system to become
unstable! If this happens, revert to the default setting.