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applications by adding virtual CPU cores. Hyper-Threading can increase application
jitter, so be careful when enabling this setting on a Real Time system. When the BIOS is
configured to boot LabVIEW Real-Time, Hyper-Threading is disabled automatically.
• Enabled CPU Cores —This setting selects the number of active CPU cores for the
processor. Valid values are 1, 2, 3, and All . The default value is All .
• C-States —This setting enables or disables CPU power management. The default value is
Enabled . Enabling C-States allows the processor to put idle CPU cores to sleep, allowing
active cores to run at higher than base frequencies when Turbo Boost is enabled. Enabling
C-States can increase application jitter, so be careful when enabling this setting on a Real
Time system. When the BIOS is configured to boot LabVIEW Real-Time, C-States are
disabled automatically.
• Turbo Boost —This setting enables or disables Intel Turbo Boost technology. The default
is Enabled . Enabling Turbo Boost allows CPU cores to run at higher than their base
frequency for short durations, while other cores are idle. Enabling Turbo Boost can also
increase application jitter, so be careful when enabling this setting on a LabVIEW Real-
Time system. To achieve maximum possible Turbo Boost frequencies, also enable the C-
States setting.
Video Configuration Submenu
Use this submenu to apply alternate settings to the video configuration. Normally, you do not
need to modify these settings, as the factory default settings provide the most compatible and
optimal configuration possible.
•
Primary Display —This setting specifies which video adapter the BIOS should use as the
primary adapter if more than one is present. To use an external video adapter as the
primary graphics adapter, choose
Offboard Video . The default value is Onboard AMD
Video .
Power/Wake Configuration Submenu
Use this submenu to apply alternate configurations to the power and wake features of the
chipset and controller. Normally, you do not need to modify these settings, as the factory
default settings provide the most compatible and optimal configuration possible.
•
Restore After Power Loss —This setting specifies the power state that the controller
should return to after AC power is lost. Valid values are Stay Off and Turn On . The
default is Stay Off . When set to Stay Off , the controller returns to the soft off power state
after AC power is restored. When set to Turn On , the controller powers on when AC
power is restored.
• Power Button Off Behavior —This setting specifies how the PXI Express power button
should behave. Valid options are Enabled and Disabled . The default value is Enabled .
When set to Enabled , the OS controls the power button. When set to Disabled , pressing
the power button has no effect. The Disabled option should be used only in conjunction
with the PXI Express chassis’ inhibit mode switch.
PXIe-8861 User Manual | © National Instruments | 9