Asus P5E-VM SE User Manual - Page 68

CPU Ratio Setting [Auto], FSB Strap to North Bridge [Auto], FSB Frequency [XXX], PCIE Frequency [

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Some of the following items appear when you set AI Overclocking to [Manual] and [N.O.S.] CPU Ratio Setting [Auto] Allows you to set the ratio between CPU core clock and the FSB frequency. Use the and keys to select the ratio values. Configuration options: [Auto] [14.0] [15.0] ~ [23.0] [24.0] FSB Strap to North Bridge [Auto] FSB Strap will be adjusted automatically by FSB Frequency and DRAM Frequency. Configuration options: [Auto] [200MHz] [266MHz] [333MHz]. The following two items only appear when you set the Ai Overclocking item to [Manual]. 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. FSB/CPU External Frequency Synchronization Front Side Bus CPU External Frequency FSB 1333 333 MHz FSB 1066 266 MHz FSB 800 200 MHz PCIE Frequency [Auto] Allows you to set the PCI Express frequency. Configuration options: [Auto] [100] [101] ~ [149] [150] DRAM Frequency [Auto] Allows you to set the DDR2 operating frequency. Configuration options: [Auto] [DDR2-533MHz] [DDR2-667MHz] [DDR2-800MHz] Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. 2-18 Chapter 2: BIOS setup

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2-18
Chapter 2: BIOS setup
Some of the following items appear when you set
AI Overclocking
to [Manual]
and [N.O.S.]
CPU Ratio Setting [Auto]
Allows you to set the ratio between CPU core clock and the FSB frequency. Use
the <+> and <-> keys to select the ratio values.
Configuration options: [Auto] [14.0] [15.0] ~ [23.0] [24.0]
FSB Strap to North Bridge [Auto]
FSB Strap will be adjusted automatically by FSB Frequency and DRAM Frequency.
Configuration options: [Auto] [200MHz] [266MHz] [333MHz].
The following two items only appear when you set the
Ai Overclocking
item to
[Manual].
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.
FSB/CPU External Frequency Synchronization
Front Side Bus
CPU External Frequency
FSB 1333
333 MHz
FSB 1066
266 MHz
FSB 800
200 MHz
PCIE Frequency [Auto]
Allows you to set the PCI Express frequency.
Configuration options: [Auto] [100] [101] ~ [149] [150]
DRAM Frequency [Auto]
Allows you to set the DDR2 operating frequency.
Configuration options: [Auto] [DDR2-533MHz] [DDR2-667MHz] [DDR2-800MHz]
Selecting a very high DRAM frequency may cause the system to become
unstable! If this happens, revert to the default setting.