Asus P5KPL-AM EPU User Manual download pdf (Page 48)

2-10 Chapter 2: BIOS information

FSB / CPU External Frequency Synchronization

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 600. Refer to the table below for the correct

Front Side Bus and CPU External Frequency settings.

Overclock Options [Overclock 5%]

Allows you to select the overclock options. Conguration options: [Overclock 5%]

[Overclock 10%] [Overclock 15%] [Overclock 20%]

DRAM Frequency [Auto]

Allows you to set the DDR2 operating frequency. Conguration options: [Auto]

[667 MHz] [800 MHz] [1000MHz] [1100MHz]

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

Prole].

Front Side Bus CPU External Frequency

FSB 1600 400 MHz

FSB 1333 333 MHz

FSB 1066 266 MHz

FSB 800 200 MHz

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

Selecting a very high DRAM frequency may cause the system to become unstable! If this

happens, revert to the default setting.

FSB

DRAM Frequency

Auto 667MHz 800MHz 960MHz 1000MHz 1067MHz 1100MHz 1200MHz

1600 v v v v v

1333 v v v v v

1066 v v v v

800 v v v

• The conguration options vary with different CPUs.

• The following table shows the DRAM Frequency options that appear when the FSB

value is 1600, 1333, 1066, and 800.

Memory Over Voltage [Auto]

Allows you to adjust Memory Over voltage and each step is 0.00625V. Valid value is from

1.85000V to 2.24375V.

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Asus P5KPL-AM EPU User Manual Page 48