Asus P5Q3 Deluxe/WiFi-AP @n - Manual (Page 86)

3-16 Chapter 3: BIOS setup
FSB/CPU External Frequency Synchronization
Front Side Bus FSB 1600 FSB 1333 FSB 1066 FSB 800
CPU External Frequency 400 MHz 333 MHz 266 MHz 200 MHz
3.4.2 CPU Ratio Setting [Auto]
Allows you to adjust the ratio between CPU Core Clock and FSB Frequency. Use
the <+> and <-> keys to adjust the value.
Configuration options: [Auto] [06.0] [07.0] [08.0]
The following two items appear only when you set the Ai Overclock Tuner item
to [Manual].
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 CPU 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.
3.4.1 Ai Overclock Tuner [Auto]
Allows selection of CPU overclocking options to achieve desired CPU internal
frequency. Select either one of the preset overclocking configuration options:
Manual Allows you to individually set overclocking parameters.
Auto Loads the optimal settings for the system.
X.M.P. If you install memory module(s) supporting the eXtreme
Memory Profile (X.M.P.) Technology, choose this item to set the
profile(s) supported by your memory module(s) for optimizing
the system performance.
The configuration options for the following sub-item vary depending on the
DIMMs you install on the motherboard.
eXtreme Memory Profile [High Performance]
This item appears only when you set the Ai Overclock Tuner item to
[X.M.P.]. Allows you to select the X.M.P. mode supported by your Memory
module.
Configuration options: [High Performance] [High Frequency]
To obtain the best performance of the X.M.P. DIMM or 1600MHz DIMM, install
only one DIMM on each memory channel.