Asus P5E64 WS Professional User Manual download pdf (Page 88)

4-18 Chapter 4: BIOS setup

4.4.2 CPU Ratio Control [Auto]

Conguration options: [Auto] [Manual].

Ratio CMOS Setting [9]

This item appears only when you set the CPU Ratio Control item to

[Manual]. Allows you to set the ratio between CPU Core Clock and the FSB

Frequency. Use the <+> and <-> keys to adjust the ratio. If an invalid ratio is

set in CMOS, then actual and setpoint values may differ.

4.4.3 FSB Strap to North Bridge [Auto]

When set to [Auto], the FSB Strap will be adjusted automatically by FSB

Frequency and DRAM Frequency.

Congifuration options: [Auto] [200MHz] [266MHz] [333MHz] [400MHz]

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 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 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 Overclock Tuner item to

[Manual].

The following item appears only when you set the Ai Overclock Tuner item to

[Manual] and [X.M.P.].

PCIE Frequency [Auto]

Allows you to set the PCI Express frequency. Use the <+> and <-> keys to adjust

the PCIE frequency. The values range from 100 to 150.

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Asus P5E64 WS Professional User Manual Page 88