Instruction manual

12
Processor Frequency Multiplier
It shows the processor frequency multiplication. Read-only.
Advance DRAM Configuration > MCT Timing Mode
This field has the capacity to automatically detect all of the DRAM timing. If you set this field
to [Manual], you can select the DRAM timing manually.
Advance DRAM Configuration > 1T/2T Memory Timing
This setting controls the SDRAM command rate. The default value is 2T (T=clock cycles).
2T is more stable than 1T, but 1T is faster than 2T.
Adjust DDR2 Memory Frequency
This item allows you to select the memory frequency programming method. If select Auto,
the memory speed will be based on SPDs. If select Limit, the memory speed will not exceed
the specified value. If select Manual, the memory specified will be programmed regardless
of SPD.
Adjust PCIE Frequency
This item allows you to select the PCI Express frequency (in MHz). Select the number
between [100]~[150] for needed frequency.
Auto Disable PCI Clock
This item is used to auto disable the PCI slots. When set to [Enabled], the system will
remove (turn off) clocks from empty PCI slots to minimize the electromagnetic interference
(EMI).
CPU Voltage
This setting is used to adjust the CPU core voltage(Vcore) and offers users a tool to
overclock the system.
Memory Voltage
Adjusting the DDR voltage can increase the DDR speed. Any changes made to this setting
may cause a stability issue, so changing the DDR voltage for long-term purpose is NOT
recommended.
Spread Spectrum Configuration
When the motherboard’s clock generator pulses, the extreme values (spikes) of the pulses
creates EMI (Electromagnetic Interference). The Spread Spectrum function reduces the EMI
generated by modulating the pulses so that the spikes of the pulses are reduced to flatter
curves. If you do not have any EMI problem, leave the setting at Disabled for optimal system
stability and performance. But if you are plagued by EMI, set to Enabled for EMI reduction.
Remember to disable Spread Spectrum if you are overclocking because even a slight jitter
can introduce a temporary boost in clock speed which may just cause your overclocked
processor to lock up.
Important:
If you do not have any EMI problem, leave the setting at [Disabled] for optimal system
stability and performance. But if you are plagued by EMI, select the value of Spread
Spectrum for EMI reduction.
The greater the Spread Spectrum value is, the greater the EMI is reduced, and the system
will become less stable. For the most suitable Spread Spectrum value, please consult your
local EMI regulation.
Remember to disable Spread Spectrum if you are overclocking because even a slight jitter
can introduce a temporary boost in clock speed which may just cause your overclocked
processor to lock up.
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