•
Hardware Prefetcher
—This setting enables or disables CPU cache hardware
prefetching. The default value is
Disabled
when booting LabVIEW Real-Time and
Enabled
when booting other OSs. Enabling hardware prefetching can increase system
performance for some applications, but can cause control algorithms to behave less
deterministically.
•
Adjacent Cache Line Prefetch
—This setting enables or disables prefetching of adjacent
cache lines from memory to the CPU cache. The default value is
Disabled
when booting
LabVIEW Real-Time and
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
.
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
Normal
and
Disabled
. The default value is
Normal
.
When set to
Normal
, 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.
•
ExpressCard WAKE#
3
—This setting enables or disables an ExpressCard device’s
ability to wake a soft off system. The default value is
Disabled
.
•
PXIe Backplane WAKE#
—This setting enables or disables a PXI Express peripheral
module’s ability to wake a soft off system. The default value is
Disabled
.
•
SMBus ALERT#
—This setting enables or disables a System Management device’s
ability to wake a soft off system by asserting the ALERT# signal. The default value is
Disabled
.
3
Available on the NI PXIe-8840 Quad-Core ExpressCard variant only.
10
|
ni.com
|
NI PXIe-8840 Quad-Core User Manual
