4-18 Chapter 4: BIOS setup
PCIE Frequency [Auto]
Allows you to set the PCI Express frequency.
Conguration options: [Auto] [100] [101]~[149] [150]
DRAM Frequency [Auto]
Allows you to set the DDR3 operating frequency.
Conguration options: [Auto] [DDR3-800MHz] [DDR3-889 MHz] [DDR3-1067MHz]
A very high DRAM frequency may cause the system to become unstable! If this
happens, revert to the default setting.
DRAM Timing Control [Auto]
Conguration options: [Auto] [Manual]
The following items appear when you set the DRAM Timing Control item to
[Manual].
CAS# Latency [ 6]
Conguration options: [5] [6] [7] [8] [9] [10]
RAS# to CAS# Delay [ 5 DRAM Clocks]
Conguration options: [3 DRAM Clocks] [4 DRAM Clocks]~[9 DRAM Clocks]
[10 DRAM Clocks]
FSB/CPU External Frequency Synchronization
Front Side Bus CPU External Frequency
FSB 1333 333 MHz
FSB 1066 266 MHz
FSB 800 200 MHz
Refer to page 2-3 for FSB frequency LED denition.
FSB Frequency [266]
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.
The following two items only appear when you set the Ai Overclocking item to
[Manual].
Ratio CMOS Setting [7]
Conguration options: [6] [7]
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