Table of Contents
Advertisement
150 Appendix D: Matrox 4Sight GPm (Bay Trail) BIOS reference
Item
Options
Use XD Capability
Disabled
Enabled*
Limit CPUID Max value
Disabled*
Enabled
VTX-2
Enable*
Disable
AESNI Feature
Disabled
Enabled*
Active Processor Cores
All Core*
1 Core
2 Core
3 Core
P-States(IST)
Disabled
Enabled*
Boot Performance Mode
Max Power Saving
Max Performance*
Meaning
This item allows you to enable or disable XD. XD is a CPU feature that helps prevent malicious software
programs from overflowing buffers.
This item allows you to enable or disable the maximum CPUID value limit. Older operating systems (such as
Microsoft Windows 95/98/ME) do not support the values returned by CPUID instructions of newer
processors. This item can be used to limit the value returned by the CPUID instruction to 03h, so that older
operating systems work with newer CPUs.
Note that this item should not be changed.
❖
This item allows you to enable or disable virtual extensions for the CPU. Virtual extensions provide extended
page tables (EPT), Virtual Processor IDs (VPID), Guest Preemption Timers, Descriptor table exiting, and
additional VM functions. For more information on these features, refer to the Intel website.
This item should not be changed.
❖
This item allows you to enable or disable the Intel advanced encryption standard instructions (AES-NI). The
instructions were designed to implement some of the complex and performance intensive steps of the AES
algorithm using hardware and accelerating the execution of the AES algorithms. AES-NI can be used to
accelerate the performance of an implementation of AES by 3 to 10 times over a completely software
implementation. For more information on these features, refer to the Intel website.
This item should not be changed.
❖
This item allows you to select the number of processor cores available to your operating system and/or
processing applications.
By selecting All Core, all processor cores of the CPU are enabled.
This item should not be changed.
❖
This item allows you to enable or disable processor performance states (P-States).
For Matrox 4Sight GPm (Bay Trail), it is strongly recommended that you set this item to Enabled (default).
❖
This item allows you to select the performance state.
By selecting Max Power Saving, the unit will be run in a way so as to minimize power consumption.
By selecting Max Performance, the unit will be run in a way so as to maximize performance.
Note that, this item and its options might not be present, depending on the CPU of your unit.
❖
Advertisement
Table of Contents
