Micro-Star International MS-7640 Notice D'installation page 39

▶ tRFC
This setting determines the time RFC takes to read from and write to a memory
cell.
▶ Advanced Channel 1/ 2 Timing Configuration
Press <Enter> to enter the sub-menu. And you can set the advanced memory timing
for each channel.
▶ tRWTT02/ tWRRD2/ tWRWR2/ tRDRD2
These items is used to set the memory timings for memory channel 1/ 2.
▶ DCT Unganged Mode
This feature is used to Integrate two 64-bit DCTs into a 128-bit interface.
▶ Bank Interleaving
Bank Interleaving is an important parameter for improving overclocking capability of
memory. It allows system to access multiple banks simultaneously.
▶ HT Link Speed
This item allows you to set the Hyper-Transport Link speed. Setting to [Auto], the system
will detect the HT link speed automatically.
▶ Adjusted HT Link Frequency
It shows the adjusted HT Link frequency. Read-only.
▶ CPU Core Control
This item allows you to select the number of active processor cores.
▶ Unlock CPU Core
This item is used to unlock the CPU core. Please refer to the procedures below for CPU
core unlocked in BIOS setup.
Set "Unlock CPU Core" to [Enabled].
Save changes and exit the BIOS setup.
System restart.
Success
You will see the "X4" (quad core) or "X2" (dual core for
Sempron series only) during POST.
AMD Phenom(tm) II X4 Processor
AMD Sempron(tm) II X2 Processor
Important
• This CPU core unlocked behavior depends on the CPU ability/ characteristic, and it
is not guaranteed.
Set "Adjust CPU-NB Ratio" and
"HT Link Speed" to [x8].
Clear CMOS data.
Fail
The CPU does not support CPU core
unlock, please leave the default settings
for system.
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