MSI MEG X399 CREATION User Manual - Page 74

BIOS PSP Support [Enabled] optional, Relaxed EDC throttling [Auto]

Page 74 highlights

fDIMMx Memory SPD Press Enter to enter the sub-menu. The sub-menu displays the information of installed memory. Read only. f CPU Features Press Enter to enter the sub-menu. fSMT Mode [Auto] Enables/ disables the AMD Simultaneous Multi-Threading. This item appears when the installed CPU supports this technology. fGlobal C-state Control [Auto] Enables/ disables IO based C-state generation and DF C-states. fOpcache Control [Auto] Enables/ disables Opcache. fIOMMU [Auto] Enables/disables the IOMMU (I/O Memory Management Unit) for I/O Virtualization. fSpread Spectrum [Auto] 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 y If you do not have any EMI problem, leave the setting at [Disabled] for optimal system stability and performance. But if you are plagued by EMI, select the value of Spread Spectrum for EMI reduction. y The greater the Spread Spectrum value is, the greater the EMI is reduced, and the system will become less stable. For the most suitable Spread Spectrum value, please consult your local EMI regulation. y Remember to disable Spread Spectrum if you are overclocking because even a slight jitter can introduce a temporary boost in clock speed which may just cause your overclocked processor to lock up. fRelaxed EDC throttling [Auto] [Auto] AMD's recommendation [Enabled] Reduce the amount of time the processor will throttle. [Disabled] Part-specific EDC throttling protection enabled. fAMD Cool'n'Quiet [Enabled] The Cool'n'Quiet technology can effectively and dynamically lower CPU speed and power consumption. fBIOS PSP Support [Enabled] (optional) Enables/ disables the BIOS PSP support. It manages PSP sub-items including all C2P/P2C mailbox, Secure S3, fTPM support. 74 BIOS Setup

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74
BIOS Setup
f
DIMMx Memory SPD
Press
Enter
to enter the sub-menu. The sub-menu displays the information of
installed memory. Read only.
f
CPU Features
Press
Enter
to enter the sub-menu.
f
SMT Mode [Auto]
Enables/ disables the AMD Simultaneous Multi-Threading. This item appears when
the installed CPU supports this technology.
f
Global C-state Control [Auto]
Enables/ disables IO based C-state generation and DF C-states.
f
Opcache
Control [Auto]
Enables/ disables Opcache.
f
IOMMU [Auto]
Enables/disables the IOMMU (I/O Memory Management Unit) for I/O Virtualization.
f
Spread Spectrum [Auto]
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
y
If you do not have any EMI problem, leave the setting at [Disabled] for optimal system
stability and performance. But if you are plagued by EMI, select the value of Spread
Spectrum for EMI reduction.
y
The greater the Spread Spectrum value is, the greater the EMI is reduced, and the
system will become less stable. For the most suitable Spread Spectrum value,
please
consult your local EMI regulation.
y
Remember to disable Spread Spectrum if you are overclocking because even a
slight jitter can introduce a temporary boost in clock speed which may just cause your
overclocked processor to lock up.
f
Relaxed EDC throttling [Auto]
[Auto]
AMD's recommendation
[Enabled]
Reduce the amount of time the processor will throttle.
[Disabled]
Part-specific EDC throttling protection enabled.
f
AMD Cool
n
Quiet [Enabled]
The Cool
n
Quiet technology can effectively and dynamically lower CPU speed and
power consumption.
f
BIOS PSP Support [Enabled] (optional)
Enables/ disables the BIOS PSP support. It manages PSP sub-items including all
C2P/P2C mailbox, Secure S3, fTPM support.