MSI K9N SLI V2 Series Manual page 59

RAS# Precharger Time (TRP)
W hen the MCT Timing M ode sets to [Manual], this field is adjustable. This
setting controls the number of cycles for Row Address Strobe (RAS) to be
allowed to precharge. If insufficient time is allowed for the RAS to accumulate its
charge before DRAM refresh, refresh may be incomplete and DRAM may fail to
retain data. This item applies only when synchronous DRAM is installed in the
system.
1T/2T M emory Timing
This item controls the SDRAM command rate. Select [1T] makes SDRAM signal
controller to run at 1T (T=clock cycles) rate. Selecting [2T] makes SDRAM signal
controller run at 2T rate.
DCT Unganged Mode
This mainboard supports dual-channel DRAM mode. W hen this is enabled, you can
set different DRAM timing for these two channels. This item will appear when you
install the CPU which supports unganged mode.
Adjust DDR2 M emory Frequency
You can place an artificial memory clock limit on the system. Please note that memory
is prevented from running faster than this frequency.
Adjust PCIE Frequency (MHz)
This field allows you to select the PCI-E frequency (in MHz).
Auto Disable PCI Clock
This item is used to auto disable the PCI slots. W hen set to [Enabled], the system will
remove (turn off) clocks from empty PCI slots to minimize the electromagnetic inter-
ference (EMI).
CPU Voltage
This item allows you to increase the CPU voltage.
M emory Voltage
Adjusting the memory voltage can increase the memory speed.
Advance DRAM Configuration
Press <Enter> to enter the sub-menu and the following screen appears.
CPU/LDT Spread Spectrum
This setting is used to enable or disable the CPU/LDT Spread Spectrum feature.
W hen overclocking the CPU, always set it to [Disabled].
BIOS Setup
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