MSI H61M-E23 (G3) Series Manual page 27

trfC
this setting determines the time rfC takes to read from and write to a memory
cell.
tWr
determines minimum time interval between end of write data burst and the start
of a pre-charge command. Allows sense amplifiers to restore data to cell.
tWtr
determines minimum time interval between the end of write data burst and the
start of a column-read command; allows i/o gating to overdrive sense amplifies
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.
tCkE
this item is used to set the pulse Width for drAM module.
Advanced Channel  timing Configuration
press <Enter> to enter the sub-menu. And you can set the advanced memory
timing for the memory 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
integrated graphics to run at different frequency combinations.
Adjusted Gt frequency
it shows the iGpu frequency. read-only.
Spread Spectrum
this function reduces the EMi (Electromagnetic interference) generated by
modulating clock generator pulses.
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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