Asus M2N-PLUS SLI AI Tuning [Auto], Overclock Options [Disabled], CPU Frequency [XXX] (value is auto-detected), PCI Express Clock [100Mhz], DDR2 Voltage [Auto]

AI Tuning [Auto]

Allows selection of CPU overclocking options to achieve desired CPU internal frequency. Selct either one of the preset overclocking configuration options:

Manual	Allows you to individually set overclocking parameters.
Auto	Loads the optimal settings for the system.
Standard	Loads the standard settings for the system.
AI Overclock	Loads overclocking profiles with optimal parameters for
	stability when overclocking.

The following item becomes user-configurable when you set AI Tuning to [AI Overclock].

Overclock Options [Disabled]

Allows you to set the overclocking options.

Configuration options: [Disabled] [Overclock 3%] [Overclock 5%] [Overclock 8%] [Overclock 10%]

The following item becomes user-configurable when you set AI Tuning to [Manual]

CPU Frequency [XXX] (value is auto-detected)

Indicates the frequency sent by the clock generator to the system bus and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple equals the CPU speed. The BIOS auto-detects the value of this item. The values range from 200.0 to 400.0.

Setting a very high CPU frequency may cause the system to become unstable. If this happens, revert to the default setting.

PCI Express Clock [100Mhz]

Allows you to set the PCI Express clock.

Configuration options: [100MHz]~[145MHz]

DDR2 Voltage [Auto]

Allows you to set the operating DDR2 voltage.

Configuration options: [Auto] [1.80V] [1.85V] [1.90V] [1.95V]

PCI Clock Synchronization Mode [Auto]

Sets the PCI Clock Synchronization mode.

Configuration options: [Auto] [To CPU] [33.33MHz]

4-20 Chapter 4: BIOS setup