![](/images/new-backgrounds/1272783/272783157x1.webp)
The following item appears only when you set the AI Overclocking item to [Manual].
CPU Frequency![](/images/new-backgrounds/1272783/272783157xi3.webp)
[XXX]![](/images/new-backgrounds/1272783/272783157xi5.webp)
![](/images/new-backgrounds/1272783/272783157xi6.webp)
![](/images/new-backgrounds/1272783/272783157xi7.webp)
![](/images/new-backgrounds/1272783/272783157xi8.webp)
Displays the frequency sent by the clock generator to the system bus and PCI bus. The value of this item is
to 450. Refer to the table below for the correct Front Side Bus and CPU External Frequency settings.
FSB/CPU![](/images/new-backgrounds/1272783/272783157xi9.webp)
External![](/images/new-backgrounds/1272783/272783157xi11.webp)
![](/images/new-backgrounds/1272783/272783157xi12.webp)
Frequency![](/images/new-backgrounds/1272783/272783157xi14.webp)
Synchronization
Front Side Bus | CPU External Frequency |
FSB 1066 | 266 MHz |
FSB 800 | 200 MHz |
FSB 533 | 133 MHz |
DRAM Frequency![](/images/new-backgrounds/1272783/272783157xi16.webp)
[Auto]![](/images/new-backgrounds/1272783/272783157xi18.webp)
![](/images/new-backgrounds/1272783/272783157xi19.webp)
![](/images/new-backgrounds/1272783/272783157xi20.webp)
![](/images/new-backgrounds/1272783/272783157xi21.webp)
Allows you to set the DDR operating frequency. The available configuration options vary depending on the Front Side Bus settings. Refer to the table below for details.
Available DRAM frequency options in
various FSB![](/images/new-backgrounds/1272783/272783157xi23.webp)
settings
FSB |
| Configuration options | ||
| Auto | DDR2- DDR2- DDR2- | ||
|
| 400 | 533 | 667 |
FSB 1066 | • | • | • | • |
FSB 800 | • | • | • | • |
FSB 533 | • | • | • |
|
* 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.
PCI
Express![](/images/new-backgrounds/1272783/272783157xi26.webp)
Frequency![](/images/new-backgrounds/1272783/272783157xi28.webp)
[Auto]![](/images/new-backgrounds/1272783/272783157xi30.webp)
![](/images/new-backgrounds/1272783/272783157xi31.webp)
![](/images/new-backgrounds/1272783/272783157xi32.webp)
![](/images/new-backgrounds/1272783/272783157xi33.webp)
Allows you to set the PCI Express frequency. This item is set to [Auto] by default. Configuration options: [Auto] [90] [91]...[150]
PCI
Clock Synchronization Mode [Auto]![](/images/new-backgrounds/1272783/272783157xi35.webp)
![](/images/new-backgrounds/1272783/272783157xi36.webp)
![](/images/new-backgrounds/1272783/272783157xi37.webp)
![](/images/new-backgrounds/1272783/272783157xi38.webp)
Allows you to synchronize the PCI frequency with the PCI Express or CPU frequency. Configuration options: [33 MHz] [Auto]
ASUS P5L 1394 |