Video Configuration Submenu; Clock Generator Configuration Submenu; Expresscard Configuration Submenu - National Instruments NI PXI-8109 User Manual

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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 adapater 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.

Clock Generator Configuration Submenu

Use this submenu to apply alternate configurations to the controller's
onboard clock generator. Normally, you do not need to modify these
settings, as the factory default settings provide the most compatible and
optimal configuration possible.
Spread Spectrum—This setting enables or disables Spread Spectrum
•
clocking for each onboard clock generator used on the controller. The
default value is Enabled. This option should be set to Disabled to use
Jumbo Frames with the Intel 82577 LAN adapter.

ExpressCard Configuration Submenu

Use this submenu to apply alternate settings to the ExpressCard
configuration. These settings determine how much memory space,
I/O space, and PCI bus numbers will be pre-allocated for the
ExpressCard port, allowing non-PCI Express-aware operating systems to
support hot-plugging ExpressCard devices. Normally, you do not need to
modify these settings, as the factory default settings provide the most
compatible and optimal configuration possible.
ExpressCard Resources—This setting enables or disables the setting
•
of the Reserved Buses, Reserved Memory, and Reserved I/O
Chapter 2
2-9
Installation and Configuration
NI PXI-8109 User Manual