National Instruments NI PXIe-8840, Руководство пользователя

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Chapter 2 Installation and Configuration
• ExpressCard Configuration
1
—Use this setting to access the ExpressCard
Configuration submenu. Refer to the ExpressCard Configuration Submenu section for
more information.
• PCI Configuration —Use this setting to access the PCI Configuration submenu. Refer to
the PCI Configuration Submenu section for more information.
• USB Configuration —Use this setting to access the USB Configuration submenu. Refer
to the USB Configuration Submenu section for more information.
• Serial Port Configuration —Use this setting to access the Serial Port Configuration
submenu. Refer to the Serial Port Configuration Submenu section for more information.
SATA Configuration Submenu
Use this submenu to apply alternate settings to the hard disk drive (HDD) interfaces. Normally,
you do not need to modify these settings, as the factory default settings provide the most
compatible and optimal configuration possible.
•
SATA Controller —This setting specifies whether or not the onboard SATA controller is
enabled or disabled. The default value is Enabled .
– SATA Mode Selection —This setting determines whether AHCI mode is enabled or
disabled for the SATA port. Some older operating systems do not support AHCI mode.
You can use this setting to disable AHCI mode and enable IDE mode so that
non-compatible OSes function correctly. The default value is
AHCI .
• Internal Drive (SATA) —This item displays the onboard SATA drive detected in the
system.
CPU Configuration Submenu
Use this submenu to apply alternate settings to the CPU. Normally, you do not need to modify
these settings, as the factory default settings provide the most compatible and optimal
configuration possible.
•
Hyper-Threading —This setting enables or disables Intel Hyper-Threading technology.
The default value is Enabled . Enabling Hyper-Threading increases performance for some
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. To
manually enable Hyper-Threading performance when in LabVIEW Real-Time mode, refer
to the
LabVIEW RT Configuration Overrides Submenu .
• Enabled CPU Cores —This setting selects the number of active CPU cores for the
processor. Valid values are 1 and All . The default value is All .
• Turbo Boost —This setting enables or disables Intel Turbo Boost technology. The default
value 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 Real Time system.
1 Available on the PXIe-8840 ExpressCard variant only.