The following two items appear 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 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

PCI Express Frequency [Auto]

Allows you to select the PCI Express frequency. Configuration options: [Auto] [90] [91] [92]~[150]

The following item appears only when you set the AI Overclocking item to [Overclock Profile].

Overclock Options [Overclock 5%]

Allows you to select the overclock options. Configuration options: [Overclock 5%] [Overclock 10%] [Overclock 15%] [Overclock 20%] [Test Mode]

DRAM Frequency [Auto]

Allows you to set the DRAM frequency. Configuration options: [Auto] [800 MHz] [1067MHz]

The following table shows the DRAM Frequency options that appear when the FSB value is 1333, 1066, and 800.

FSB

 

 

 

DRAM Frequency

 

 

Auto

667MHz

800MHz

960MHz

1000MHz

1067MHz

1100MHz

 

1333

v

v

v

 

v

 

v

1066

v

v

v

 

 

v

 

800

v

v

v

 

 

 

 

Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting.

2-10

Chapter 2: BIOS information