Asus V2-PE5 User Manual - Page 72

DRAM Frequency [Auto], PCIe Frequency [Auto], FSB Frequency [xxx]

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The following item appears only when the CPU Ratio Control item is set to [Manual]. Ratio CMOS Setting [7] Sets the ratio between CPU Core Clock and the FSB Frequency. FSB 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 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. FSB/CPU External Frequency Synchronization Front Side Bus FSB 1333 FSB 1066 FSB 800 CPU External Frequency 333MHz 266 MHz 200 MHz PCIe Frequency [Auto] Allows you to set the PCIe operating frequency. Configuration options: [Auto] [100] [101] [102] [103] [104] ~ [150]. DRAM Frequency [Auto] Allows you to set the DDR2 operating frequency. Configuration options: [Auto] [DDR2-667MHz] [DDR2-800MHz] [DDR2-889MHz] [DDR2-1067MHz] Available DRAM frequency options in various FSB settings FSB Configuration options Auto DDR2- DDR2- DDR2- DDR2- DDR2- DDR2- DDR2- DDR2667 800 833* 889 1000* 1067* 1111* 1333* FSB 1333 • • • • • • • • FSB 1066 • • • • • • FSB 800 • • • * Provided for overclocking purpose only. Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. 2-22 Chapter 2: BIOS setup

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2-22
Chapter 2: BIOS setup
FSB/CPU External Frequency Synchronization
Front Side Bus
CPU External Frequency
FSB 1333
333MHz
FSB 1066
266 MHz
FSB 800
200 MHz
Selecting a very high DRAM frequency may cause the system to become
unstable! If this happens, revert to the default setting.
DRAM Frequency [Auto]
Allows you to set the DDR2 operating frequency.
Configuration options: [Auto] [DDR2-667MHz] [DDR2-800MHz] [DDR2-889MHz]
[DDR2-1067MHz]
Available DRAM frequency options in various FSB settings
* Provided for overclocking purpose only.
FSB
Configuration options
Auto
DDR2-
667
DDR2-
800
DDR2-
833*
DDR2-
889
DDR2-
1000*
DDR2-
1067*
DDR2-
1111*
DDR2-
1333*
FSB 1333
•
•
•
•
•
•
•
•
FSB 1066
•
•
•
•
•
•
FSB 800
•
•
•
PCIe Frequency [Auto]
Allows you to set the PCIe operating frequency.
Configuration options: [Auto] [100] [101] [102] [103] [104] ~ [150].
FSB 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 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.
The following item appears only when the CPU Ratio Control item is set to
[Manual].
Ratio CMOS Setting [7]
Sets the ratio between CPU Core Clock and the FSB Frequency.