MSI G41M-P34 User Manual page 25

setting determines the time RaS takes to read from and write to a memory
cell.
tRtP
When the dRam timing mode sets to [manual], the field is adjustable. time
interval between a read and a precharge command.
tRFC
When the dRam timing mode sets to [manual], the field is adjustable. this
setting determines the time RFC takes to read from and write to a memory
cell.
tWR
When the dRam timing mode is set to [manual], the field is adjustable. it
specifies the amount of delay (in clock cycles) that must elapse after the com-
pletion of a valid write operation, before an active bank can be precharged.
this delay is required to guarantee that data in the write buffers can be written
to the memory cells before precharge occurs.
tRRd
When the dRam timing mode sets to [manual], the field is adjustable. Speci-
fies the active-to-active delay of different banks.
tWtR
When the dRam timing mode is set to [manual], the field is adjustable. this
item controls the Write data in to Read Command delay memory timing. this
constitutes the minimum number of clock cycles that must occur between the
last valid write operation and the next read command to the same internal
bank of the ddR device.
FSB/dRam Ratio
this item will allow you to adjust the ratio of FSB to memory.
adjusted dRam Frequency (mHz)
it shows the adjusted memory frequency. Read-only.
adjust PCi-e Frequency (mHz)
this item allows you to adjust the PCi-e frequency.
auto disable dRam/PCi Frequency
When set to [enabled], the system will remove (turn off) clocks from empty
dimm and PCi slots to minimize the electromagnetic interference (emi).
dRam Voltage (V), nB Voltage (V), CPu Vtt (V), CPu Voltage (V)
these items are used to adjust the voltage of CPu, memory and chipset.
Spread Spectrum
When the motherboard's clock generator pulses, the extreme values (spikes)
of the pulses create 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 intro-
duce a temporary boost in clock speed which may just cause your overclocked
processor to lock up.
MS-7592
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