MSI RD480 Neo2 - Manual (Page 71)

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MS-7194 ATX Mainboard
TRFC
W hen the DRAM Timing is set to [Manual], the field is adjustable. This setting
determines the time RFC takes to read from and write to a memory cell. Setting
options: [Auto], [9T~24T].
TRWT
W hen the DRAM Timing is set to [Manual], the field is adjustable. This is not a
DRAM-specified timing parameter, but must be considered due to routing latencies on
the clock forwarded bus. It is counted from the first address bus slot that was not
associated with part of the read burst. Setting options: [Auto], [1CLK~6CLK].
DRAM CMD-ADDR Timing
This setting controls the SDRAM command rate. Selecting 1T makes SDRAM signal
controller to run at 1T (T=clock cycles) rate. Selecting 2T makes SDRAM signal
controller run at 2T rate. 1T is faster than 2T. Setting options: [1T], [2T].
North Bridge Voltage
This field hows the current voltage of North Bridge chipset.
Auto Disable PCI Clock
This item is used to auto detect 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). Settings: [Enabled], [Disabled].
Spr ead Spectrum
W hen 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. Setting options: [Disabled], [Enabled].