Asus P5QL PRO User Manual - Page 80

FSB Strap to North Bridge [Auto], DRAM Frequency [Auto], DRAM Timing Control [Auto] - motherboard manual

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FSB Frequency [xxx] Displays the frequency sent by the clock generator to the system bus and PCI bus. Use the and keys to adjust the FSB frequency. You can also type the desired FSB 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 FSB 1600 FSB 1333 FSB 1066 FSB 800 CPU External Frequency 400 MHz 333 MHz 266 MHz 200 MHz PCIE Frequency [XXX] Use the and keys to adjust the PCIE frequency. You can also type the desired PCIE frequency using the numeric keypad. The values range from 100 to 180. FSB Strap to North Bridge [Auto] Allows you to adjust the FSB strap. Configuration options: [Auto] [200MHz] [266MHz] [333MHz] [400MHz] DRAM Frequency [Auto] Allows you to set the DDR2 operating frequency. Configuration options: [Auto] [DDR2-533MHz] [DDR2-639MHz] [DDR2-667MHz] [DDR2-709MHz] [DDR2-800MHz] [DDR2-852MHz] [DDR2-887MHZ] [DDR2-1066MHz] Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. DRAM Timing Control [Auto] Allows selection of the DRAM timing configuration. Configuration options: [Auto] [Manual] • The following items appear only when you set the [DRAM Timing Control] item to [Manual]. • The configuration options for some of the following items vary depending on the DIMMs you install on the motherboard. 4-18 Chapter 4: BIOS setup

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4-18
Chapter 4: BIOS setup
FSB Frequency [xxx]
Displays the frequency sent by the clock generator to the system bus and
PCI bus. Use the
<+>
and
<->
keys to adjust the FSB frequency. You can
also type the desired FSB 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
FSB 1600
400 MHz
FSB 1333
333 MHz
FSB 1066
266 MHz
FSB 800
200 MHz
PCIE Frequency [XXX]
Use the
<+>
and
<->
keys to adjust the PCIE frequency. You can also type
the desired PCIE frequency using the numeric keypad. The values range
from 100 to 180.
FSB Strap to North Bridge [Auto]
Allows you to adjust the FSB strap. Configuration options: [Auto] [200MHz]
[266MHz] [333MHz] [400MHz]
DRAM Frequency [Auto]
Allows you to set the DDR2 operating frequency. Configuration options: [Auto]
[DDR2-533MHz] [DDR2-639MHz] [DDR2-667MHz] [DDR2-709MHz]
[DDR2-800MHz] [DDR2-852MHz] [DDR2-887MHZ] [DDR2-1066MHz]
DRAM Timing Control [Auto]
Allows selection of the DRAM timing configuration. Configuration options: [Auto]
[Manual]
Selecting a very high DRAM frequency may cause the system to become
unstable! If this happens, revert to the default setting.
•
The following items appear only when you set the
[DRAM Timing Control]
item to
[Manual]
.
•
The configuration options for some of the following items vary depending
on the DIMMs you install on the motherboard.