Cpu Ratio Setting; Fsb Strap To North Bridge; Dram Frequency - Asus P5Q-E Hardware User Manual

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] [09.0]
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.
FSB/CPU External Frequency Synchronization
Front Side Bus
CPU External Frequency
PCIE Frequency [Auto]
Allows you to set the PCI Express frequency. Use the <+> and <-> keys to adjust
the PCIE frequency. The values range from 100 to 180.
3.4.3 FSB Strap to North Bridge [Auto]
When set to [Auto], the FSB Strap will be adjusted automatically by FSB
Frequency and DRAM Frequency.
Congifuration options: [Auto] [200 MHz] [266 MHz] [333 MHz] [400 MHz]
3.4.4 DRAM Frequency [Auto]
Allows you to set the DDR2 operating frequency.
Configuration options: [Auto] [DDR2-667 MHz] [DDR2-800 MHz] [DDR2-835MHz]
[DDR2-887 MHz] [DDR2-1002MHz] [DDR2-1066MHz] [DDR2-1111] [DDR2-
1335MHz]
The DRAM Frequency configuration options vary with the FSB Frequency
item settings.
Selecting a very high DRAM frequency may cause the system to become
unstable! If this happens, revert to the default setting.
3-16
FSB 1600 FSB 1333
400 MHz 333 MHz
FSB 1066 FSB 800
266 MHz 200 MHz
Chapter 3: BIOS setup