Asus P5AD2-E User Manual

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C h a p t e r 3 : B I O S s e t u p

Performance Mode [Auto]

Allows enhanced system performance. setting to [Turbo] may cause the
system to become unstable. If this happens, revert to the default setting
[Auto]. Configuration options: [Auto] [Standard] [Turbo]

AiBooster Support [Enabled]

Enables or disables the system support for the Ai Booster overclocking
application. Refer to the Ai Booster help file for details.

The following item appears only when you install a CPU that supports the
lock free feature. Only some latest CPUs support this feature.

CPU Lock Free [Auto]

Allows you to adjust the CPU multiplier to 14x. Setting this item to [Auto]
allows the motherboard to automatically reduce the CPU multiplier value for
more flexibility when increasing the external FSB.
Configuration options: [Auto] [Disabled] [Enabled]

F S B / C P U E x t e r n a l F r e q u e n c y S y n c h r o n i z a t i o n

F r o n t S i d e B u s

C P U E x t e r n a l F r e q u e n c y

FSB 1066

266 MHz

FSB 800

200 MHz

The following item appears only when you set the A I O v e r c l o c k i n g

A I O v e r c l o c k i n g

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 100 to
400. Refer to the table below for the correct Front Side Bus and CPU
External Frequency settings.

DRAM Frequency [Auto]

Allows you to set the DDR operating frequency.
Configuration options: [Auto] [400MHz] [533MHz] [600MHz] [711MHz]

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

Set the DRAM frequency to 600 MHz if your system is running at FSB
800. Set the item to 711 MHz if your system is running at FSB 1066.