MSI Z68A-GD55 (G3) - Manual (Page 49)

BIOS Setup MS-7681
Chapter 3
3-11
BIOS Setup MS-7681
Chapter 3
the mcroprocessor whether the computer s runnng on battery or AC power. Ths field
wll appear after you nstalled the CPU whch supports speedstep technology.
Intel Turbo Boost
Ths tem wll appear when you nstall a CPU wth Intel Turbo Boost technology. Ths
tem s used to enable/ dsable Intel Turbo Boost technology. It can scale processor
frequency hgher dynamcally when applcatons demand more performance and TDP
headroom exsts. It also can delver seamless power scalablty (Dynamcally scale up,
Speed-Step Down). It s the Intel newly technology wthn newly CPU.
DRAM Frequency
Ths tem allows you to adjust the DRAM frequency. Please note the overclockng
behavor s not guaranteed.
Adjusted DRAM Frequency
It shows the adjusted DRAM frequency. Read-only.
DRAM Tmng Mode
Select whether DRAM tmng s controlled by the SPD (Seral Presence Detect)
EEPROM 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 for each channel 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 address
strobe) to CAS (column address strobe). The less the clock cycles, the faster the
DRAM performance.
tRP
Ths settng controls the number of cycles for Row Address Strobe (RAS) to be
allowed to precharge. If nsufficent tme s allowed for the RAS to accumulate ts
charge before DRAM refresh, refreshng may be ncomplete and DRAM may fal
to retan data. Ths tem apples only when synchronous DRAM s nstalled n the
system.
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