Asus P5W DH CPU Frequency [XXX], DRAM Frequency [Auto], Performance Mode [Auto], FSB/CPU External Frequency Synchronization

The following 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 100 to 450. 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 1066	266 MHz
FSB 800	200 MHz

DRAM Frequency [Auto]

Allows you to set the DDR operating frequency.

Configuration options: [Auto] [DDR2-300MHz] [DDR2-400MHz]

Available DRAM frequency options in various FSB settings

FSB				Configuration options
	Auto	DDR2-	DDR2-	DDR2-	DDR2-	DDR2-	DDR2-	DDR2-
		00	533	667	711*	800*	889*	1067*
FSB 1066	•	•	•	•	•	•	•	•
FSB 800	•	•	•	•		•

* Provided for overclocking purpose only.

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

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]

ASUS P5W DH Deluxe 4-19