Chapter 2
Installation and Configuration
©
National Instruments
2-9
NI PXIe-8133 User Manual
•
Adjacent Cache Line Prefetch
—This setting enables or disables
prefetching of adjacent cache lines from memory to the CPU cache.
The default value is
Enabled
when booting LabVIEW Real-Time,
enabled when booting other OSs. Enabling adjacent cache line
prefetching can increase system performance for some applications,
but can cause control algorithms to behave less deterministically.
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
Add-in Board Video
. The default value is
Onboard Video
.
The video adapter can also be disabled by selecting
Disabled
.
Disabling video can increase system performance for some applications
by allowing some control algorithms to behave more deterministically.
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 will return to the soft off power state after AC power is
restored. When set to
Turn On
, the controller will power on when
AC power is restored.
•
Power Button Behavior
—This setting specifies how the PXI Express
power button should behave. Valid options are
Normal
,
Force Off
, and
Disable
. The default value is
Normal
. When set to
Normal
, the power
button will be controlled by the OS. When set to
Force Off
, the system
will immediately power off when the power button is pressed, overriding
any OS-specific power button policy. When set to
Disable
, pressing the
power button has no effect. The
Disable
option should only be used in
conjunction with the PXI Express chassis’ inhibit mode switch.
•
ExpressCard WAKE#
—This setting enables or disables an
ExpressCard device’s ability to wake a powered-off system. The
default value is
Disabled
.
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