Chapter 3 – MSI Z68MA-ED55 (B3) User Manual

Page 46

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3-8

BIOS Setup

MS-7676

Chapter 3

BIOS Setup

MS-7676

Chapter 3

DRAM Rato

Ths settng controls the rato of memory frequency to enable the memory to run at df-

ferent frequency combnatons.

Adjusted DRAM Frequency

It shows the adjusted DRAM frequency. Read-only.

Extreme Memory Profile(X.M.P)

Ths tem s used to enable/dsable the Intel Extreme Memory Profile (XMP). For further

nformaton please refer to Intel’s offical webste.

DRAM Tmng Mode

Select whether DRAM tmng s controlled by the SPD (Seral Presence Detect) EE-

PROM on the DRAM module. Settng to [Auto] enables DRAM tmngs and the followng

“Advanced DRAM Configuraton” sub-menu to be determned by BIOS based on the

configuratons on the SPD. Selectng [Lnk] or [Unlnk] allows users to configure the

DRAM tmngs and the followng related “Advanced DRAM Configuraton” sub-menu

manually.

Advanced DRAM Configuraton

Press <Enter> to enter the sub-menu.

Command Rate

Ths settng controls the DRAM command rate.

tCL

Ths controls the CAS latency, whch determnes the tmng delay (n clock cycles)

before SDRAM starts a read command after recevng t.

tRCD

When DRAM s refreshed, both rows and columns are addressed separately. Ths

setup tem allows you to determne the tmng of the transton from RAS (row ad-

dress strobe) to CAS (column address strobe). The less the clock cycles, the faster

the DRAM performance.

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