MSI P55A-G55 series Manual page 64

BIOS Setup BIOS Setup
This setting determines the time RFC takes to read from and write to a memory
cell.
▶ CH1/ CH2 tWR
Minimum time interval between end of write data burst and the start of a precharge
command. Allows sense amplifiers to restore data to cells.
▶ CH1/ CH2 tWTR
Minimum time interval between the end of write data burst and the start of a col-
umn-read command. It allows I/O gating to overdrive sense amplifiers before read
command starts.
▶ CH1/ CH2 tRRD
Specifies the active-to-active delay of different banks.
▶ CH1/ CH2 tRTP
Time interval between a read and a precharge command.
▶ CH1/ CH2 tFAW
This item is used to set the tFAW timing.
▶ Current CH1/ CH2 tdrRdTRd/ tddRdTRd/ tsrRdTWr/ tdrRdTWr/ tddRdTWr/
tsrWrTRd/ tddWrTWr/ tsrRDTRd/ tsrWrTWr
These item show the advanced DRAM timings.
▶ Channel 1/ Channel2 Advanced Memory Setting
Setting to [Auto] enables the advance memory timing automatically to be determined
by BIOS. Setting to [Manual] allows you to set the following advanced memory tim-
ings.
▶ Memory Ratio
This item allows you to set the memory multiplier.
▶ Adjusted DRAM Frequency (MHz)
It shows the adjusted DRAM frequency. Read-only.
▶ QPI Ratio
This item allows you to set the QPI multiplier.
▶ Adjusted QPI Frequency (MHz)
It shows the adjusted QPI frequency. Read-only.
▶ ClockGen Tuner
Press <Enter> to enter the sub-menu and the following screen appears.
▶ CPU Amplitude Control/ PCIE Amplitude Control
These items are used to select the CPU/ PCI Express clock amplitude.
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