MSI H61MA-E35 (B3) - Manual (Page 44)

3-12
BIOS Setup MS-7740
Chapter 3
▶OC Genie Button Operation
This item is used to enable/disable the OC Genie button operation.
▶DRAM Frequency
This item allows you to adjust the DRAM frequency. Please note the overclocking
behavior is not guaranteed.
▶Adjusted DRAM Frequency
It shows the adjusted DRAM frequency. Read-only.
▶DRAM Timing Mode
Select whether DRAM timing is controlled by the SPD (Serial Presence Detect)
EEPROM on the DRAM module. Setting to [Auto] enables DRAM timings and the
following “Advanced DRAM Configuration” sub-menu to be determined by BIOS based
on the configurations on the SPD. Selecting [Link] or [Unlink] allows users to configure
the DRAM timings and the following related “Advanced DRAM Configuration” sub-menu
manually.
▶Advanced DRAM Configuration
Press to enter the sub-menu.
▶Command Rate
This setting controls the DRAM command rate.
▶tCL
This controls the CAS latency, which determines the timing delay (in clock cycles)
before SDRAM starts a read command after receiving it.
▶tRCD
When DRAM is refreshed, both rows and columns are addressed separately. This
setup item allows you to determine the timing of the transition from RAS (row address
strobe) to CAS (column address strobe). The less the clock cycles, the faster the
DRAM performance.
▶tRP
This setting controls the number of cycles for Row Address Strobe (RAS) to be
allowed to precharge. If insufficient time is allowed for the RAS to accumulate its
charge before DRAM refresh, refreshing may be incomplete and DRAM may fail
to retain data. This item applies only when synchronous DRAM is installed in the
system.