User`s manual

3-14
BIOS Setup
MS-7640
Chapter 3
BIOS Setup
MS-7640
Chapter 3
Success
Enter “Overclockng” and set “Unlock CPU Core” to [Enabled].
Save changes and ext the BIOS setup.
System restart.
You wll see the “X4” (quad core) or “X2” (dual core for
Sempron seres only) durng POST.
Fal
Set “Adjust CPU-NB Rato” and
“HT Lnk Speed” to [x8].
AMD Phenom(tm) II X4 Processor
Clear CMOS data.
The CPU does not support CPU core
unlock, please leave the default settngs
for system.
AMD Sempron(tm) II X2 Processor
Important
Ths CPU core unlocked behavor depends on the CPU ablty/ characterstc, and t
s not guaranteed.
Depend on CPU’s characterstc, once you get nstable scenaro, please restore the
default settngs for system.
You can also check the core numbers n performance tab of Wndows task
manager.
OC Gene Lte
Settng ths tem to [Enabled] allows the system to detect the maxmum FSB clock and
to overclock automatcally. If overclockng fals to run, you can try the lower FSB clock
for overclockng successfully.
Spread Spectrum
When the manboard’s clock generator pulses, the extreme values (spkes) of the pulses
create EMI (Electromagnetc Interference). The Spread Spectrum functon reduces the
EMI generated by modulatng the pulses so that the spkes of the pulses are reduced
to atter curves.
Important
If you do not have any EMI problem, leave the settng at [Dsabled] for optmal system
stablty and performance. But f you are plagued by EMI, select the value of Spread
Spectrum for EMI reducton.
The greater the Spread Spectrum value s, the greater the EMI s reduced, and the
system wll become less stable. For the most sutable Spread Spectrum value, please
consult your local EMI regulaton.
Remember to dsable Spread Spectrum f you are overclockng because even a slght
jtter can ntroduce a temporary boost n clock speed whch may just cause your
overclocked processor to lock up.
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