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Asus I220GC User Manual

Page 58

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Chapter 2: BIOS setup

FSB/CPU External Frequency Synchronization

Front Side Bus

CPU External Frequency

FSB 1066

266 MHz

FSB 800

200 MHz

FSB 667

133 MHz

DRAM Frequency [Auto]

Allows you to set the DDR2 operating frequency.

Configuration options: [Auto] [DDR2-400MHz] [DDR2-533MHz]

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 Overclocking item to

[Manual].

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 133 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. Configuration options: [Auto] [90] [91]

[92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104]

The following item appears only when you set the AI Overclocking item to

[Overclock Profile].

Overclock Options [Overclock 5%]

Allows you to set the overclock profile.

Configuration options: [Overclock 5%] [Overclock 10%] [Overclock 15%]

[Overclock 20%] [Overclock 30%]