MSI 970A-G43 PLUS Manual page 44

Enter OC and set Unlock CPU Core to Enabled.
Save changes and exit the BIOS setup.
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
y
is not guaranteed.
Depend on CPU' s characteristic, once you get instable scenario, please restore the
y
default settings for system.
You can also check the core numbers in performance tab of Windows task manager.
y
CPU/ CPU-NB/ DRAM/ SB/ NB Voltages control [Auto]
f
These options allows you to set the voltages related to CPU/ memory/ SB/ NB. If set to
Auto, BIOS will set these voltages automatically or you can set it manually.
Spread Spectrum [Disabled]
f
This function reduces the EMI (Electromagnetic Interference) generated by
modulating clock generator pulses.
[Enabled] Enables the spread spectrum function to reduce the EMI
(Electromagnetic Interference) problem.
[Disabled] Enhances the overclocking ability of CPU Base clock.
Important
If you do not have any EMI problem, leave the setting at [Disabled] for optimal
y
system stability and performance. But if you are plagued by EMI, select the value of
Spread Spectrum for EMI reduction.
The greater the Spread Spectrum value is, the greater the EMI is reduced, and the
y
system will become less stable. For the most suitable Spread Spectrum value,
please consult your local EMI regulation.
Remember to disable Spread Spectrum if you are overclocking because even a
y
slight jitter can introduce a temporary boost in clock speed which may just cause
your overclocked processor to lock up.
44
BIOS Setup
System restart.
Success
Set Adjust CPU-NB Ratio and HT
Link Speed to [x8].
Clear CMOS data.
Fail
The CPU does not support CPU core
unlocking, please leave the default
settings for system.