• 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.
PCI Configuration Submenu
Use this submenu to apply alternate settings to PCI devices. Normally, you do not need to
modify these settings, as the factory default settings provide the most compatible and optimal
configuration possible.
• 64-Bit Memory Mapped IO—This setting enables or disables support for memory-
mapped I/O above the 4 GB boundary. It can be useful when using a 64-bit OS and a
large number of PCI devices. The default value is Disabled.
• PCIe Max Payload Size—This setting determines the maximum payload size of PCI
Express devices. Valid options are Auto and 128 Bytes. The default value is Auto, which
allows the BIOS to choose an optimal value based on which devices are present.
• PCIe Max Read Request Size—This setting determines the maximum size of memory
read requests for PCI Express devices. Valid options range from 128 bytes to 4096 bytes.
The default value is Auto, which allows the BIOS to choose an optimal value based on
which devices are present.
• PCI System Error Reporting—This setting enables/disables reporting of PCI system
errors. The default value is Disabled.
USB Configuration Submenu
Use this submenu to apply alternate configurations to the USB ports. Normally, you do not
need to modify these settings, as the factory default settings provide the best possible
configuration.
• USB Devices—This item lists the total number of devices detected in the system,
categorized by device type.
• Legacy USB Support—This setting specifies whether legacy USB support is enabled.
Legacy USB support refers to the ability to use a USB keyboard and mouse during
system boot or in a legacy operating system such as DOS. The default value is Enabled.
This option is disabled automatically when booting LabVIEW Real-Time to reduce
application jitter.
• Transfer Timeout—This setting specifies the timeout value for Control, Bulk, and
Interrupt USB transfers. The default value for this setting is 20 seconds.
• Device Reset Timeout—This setting specifies the number of seconds the Power-On Self
Test waits for a USB mass storage device to start. The default is 20 seconds.
• Device Power-Up Delay—This setting specifies the maximum time a device takes before
it properly reports itself to the host controller. When set to Auto, a root port is granted
10 | ni.com | PXIe-8861 User Manual
To Next Page
Loading...
