Asus P5Q EM - DO Motherboard - Micro ATX User Manual page 77

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. The values may vary depending on the
CPU installed. Configuration options: [Auto] [06.0] [07.0]–[XX.X]
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 frequency. You can also type the desired 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 frequency or type the desired frequency using the numeric keypad. The values ype the desired frequency using the numeric keypad. The values
range from 100 to 180.
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]
DRAM Frequency [Auto]
Allows you to set the DDR2 operating frequency.
Configuration options: [Auto] [DDR2-667 MHz] [DDR2-800 MHz] [DDR2-1002MHz]
[DDR2-1111MHz] MHz] ]
• Due to chipset behavior, to obtain memory frequency higher than DDR2
800, you can manually adjust DRAM Frequency.
The following table shows the variation of DRAM Frequency configuration
• The following table shows the variation of
options according to FSB Frequency settings.
FSB
Auto
1600
•
1333
•
1066
•
800
•
ASUS P5Q-EM
FSB 1600
400 MHz
DRAM Frequency (MHz)
667 800 960
• •
• •
• •
• •
FSB 1333 FSB 1066
333 MHz 266 MHz
1002 1064
•
•
•
FSB 800
200 MHz
. The values
1111 1200
•
•
2-19