MSI H61M-P20 (G3) - Manual (Page 26)

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trAS
this setting determines the time rAS takes to read from and write to memory
cell.
trFC
this setting determines the time rFC takes to read from and write to a memory
cell.
tWr
Minimum time interval between end of write data burst and the start of a pre-
charge command. Allows sense amplifiers to restore data to cells.
tWtr
Minimum time interval between the end of write data burst and the start of a
column-read command. it allows i/o gating to overdrive sense amplifiers before
read command starts.
trrd
Specifies the active-to-active delay of different banks.
trtP
time interval between a read and a precharge command.
tFAW
this item is used to set the tFAW (four activate window delay) timing.
tWCL
this item is used to set the tWCL (Write CAS Latency) timing.
Advanced Channel / 2 timing Configuration
Press <enter> to enter the sub-menu. And you can set the advanced memory
timing for each channel.
Gt overClocking
this item allows you to enable/ disable the overclocking of integrated graphics.
Gt ratio
this setting controls the ratio of integrated graphics frequency to enable the inte-
grated graphics to run at different frequency combinations.
Adjusted Gt Frequency
it shows the adjusted integrated graphics frequency. read-only.
Spread Spectrum
When the mainboard’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.
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.
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