NI PXIe-8881 Manuel utilisateur
USER MANUAL
PXIe-8881
This document provides reference information for PXI Express and the PXIe-8881 embedded
controller.
Contents
Related Documentation ............................................................................................................1
PXIe-8881................................................................................................................................. 1
Description........................................................................................................................ 1
Functional Overview.........................................................................................................2
Configuration............................................................................................................................ 4
BIOS Setup Utility............................................................................................................ 4
System CMOS.................................................................................................................14
Boot Options................................................................................................................... 15
Hard Drive Recovery...................................................................................................... 16
Upgrade Information.......................................................................................................16
I/O Information....................................................................................................................... 16
Front Panel Connectors...................................................................................................17
NI Services..............................................................................................................................18
Related Documentation
The following documents contain information you may find helpful as you read this manual:
•PICMG EXP.0 R2.0 CompactPCI Express Specification, PCI Industrial Computers
Manufacturers Group
•PCI Express Base Specification, PCI Special Interest Group
•PXI-5 PXI Express Hardware Specification, PXI Systems Alliance
•PXI-6 PXI Express Software Specification, PXI Systems Alliance
•Serialized IRQ Support for PCI Systems Specification, Compaq Computer et al.
PXIe-8881
Description
The PXIe-8881 PXI Express/CompactPCI Express embedded controller is a high-performance
PXI Express/CompactPCI Express-compatible system controller. The PXIe-8881 controller
integrates standard I/O features into a single unit by using state-of-the-art packaging.
Combining a PXIe-8881 embedded controller with a PXI Express-compatible chassis, such as
the PXIe-1095, results in a fully PC-compatible computer in a compact, rugged package.
The PXIe-8881 has an Intel® Xeon® W processor (4-Core, 8-Core, and 18-Core
configurations), all the standard I/O, and a 500 GB or larger M.2 NVMe solid state drive.
Table 1. PXIe-8881 Processors
Processor Core Count Base Frequency Turbo Frequency
Xeon® W-2225 4 4.1 GHz 4.6 GHz
Xeon® W-2245 8 3.9 GHz 4.5 GHz
Xeon® W-2295 18 3.0 GHz 4.6 GHz
The standard I/O on each module includes one DisplayPort, one RS-232 serial port, four Hi-
Speed USB ports, two SuperSpeed USB ports, two Gigabit Ethernet ports (one enabled for
1588), two Thunderbolt 3 ports, a reset button, GPIB, and an SMB connector for triggers.
Functional Overview
The PXIe-8881 is a modular PC in a PXI Express 3U-size form factor. The following figure is
a functional block diagram of the PXIe-8881. Following the diagram is a description of each
logic block shown.
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Figure 1. PXIe-8881 Block Diagram
CPU
Intel Xeon
W-2225/
2245/2295
SO-DIMM
DDR4 SDRAM
PC4 2666
DisplayPort 1.2
Memory Bus Ch. A/B/C/D
x24
GPU
AMD Radeon
E6465
x4
PCIE
PXI
Express
x4 DMI3
Intel C422
Chipset
USB 2.0 x4
M.2 NVMe
FLASH
Watchdog
Trigger SMB
Connector
PXI
Triggers
GPIB
Controller
GPIB
Connector
USB 2.0 x4
x4 PCIE
SPI
PCIe-to-
PCI-Bridge
USB 3.2 Gen 1 x2
USB 3.2 Gen 1 x2
x1 PCIE
PCI
Intel I219
Gigabit
PHY
RJ45
Port 0
Intel I210
Gigabit
MAC/PHY
RJ45
Port 1
x1 PCIE
Thunderbolt x2
x4 PCIE
x1 PCIE
UART
RS232
TPM
The PXIe-8881 consists of the following logic blocks on three circuit card assemblies (CCAs):
• The processor is an Intel® Xeon® W available with different core count and base
frequency.
• The SO-DIMM block consists of four SO-DIMM sockets that can hold up to 64 GB of
DDR4-2666 MHz PC4-21300 ECC memory.
• The processor provides the PCI Express interface to the PXI Express backplane.
• The Platform Controller Hub (PCH) provides the USB, PCI Express x1, and LPC
interfaces that connect to the peripherals on the PXIe-8881.
• The DisplayPort 1.2 block consists of a 1.2 compatible DisplayPort connector.
• The USB block consists of four Hi-Speed USB 2.0 connectors and two SuperSpeed USB
3.2 Gen 1 connectors.
• The Ethernet Port 0 block consists of an Intel® I219 Gigabit Ethernet Connection.
• The Ethernet Port 1 block consists of an Intel® I210 Gigabit Ethernet Controller.
• The UART block connects to one serial port.
• The SMB Front Panel Trigger provides a routable connection of the PXI triggers to/from
the SMB on the front panel.
PXIe-8881 User Manual | © National Instruments Corporation | 3
• The Watchdog block consists of a watchdog timer that can reset the controller or generate
triggers.
• The PXI Express Connectors connect the PXIe-8881 to the PXI Express/CompactPCI
Express backplane.
• The GPIB block contains the GPIB interface.
• The Thunderbolt 3 block contains the Thunderbolt 3 interface and connects to two
USB-C connectors.
Configuration
BIOS Setup Utility
You can change the PXIe-8881 configuration settings in the BIOS setup program. The BIOS is
the low-level interface between the hardware and operating system software that configures
and tests your hardware when you boot the system. The BIOS setup program includes menus
for configuring settings and enabling PXIe-8881 controller features.
Most users do not need to use the BIOS setup program, as the PXIe-8881 controller ships with
default settings that work well for most configurations.
Caution Changing BIOS settings may lead to incorrect controller behavior and
possibly an unbootable controller. If this happens, follow the instructions for
restoring default settings in the System CMOS section. In general, do not change a
setting unless you are absolutely certain what it does.
Accessing BIOS Setup Utility
1. Power on or restart your PXIe-8881 controller.
2. When the message Press <DEL> to enter setup appears, press the <Delete> key.
The setup program loads after a short delay.
The Main menu is displayed when you first enter the BIOS setup program.
Use the following keys to navigate through the BIOS setup program:
•Left Arrow, Right Arrow—Use these keys to move between the different setup menus.
If you are in a submenu, these keys have no effect, and you must press <Esc> to leave the
submenu first. (To use the arrows on the numeric keypad, you must turn off Num Lock.)
•Up Arrow, Down Arrow—Use these keys to move between the options within a setup
menu. (To use the arrows on the numeric keypad, you must turn off Num Lock.)
•<Enter>—Use this key either to enter a submenu or display all available settings for a
highlighted configuration option.
•<Esc>—Use this key to return to the parent menu of a submenu. At the top-level menus,
this key serves as a shortcut to a Quit without Saving? prompt.
•<+> and <–>—Use these keys to cycle between all available settings for a selected
configuration option.
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•<Tab>—Use this key to select time and date fields.
•<F9>—Use this key to load the optimal default values for BIOS configuration settings.
The optimal default values are the same as the shipping configuration default values.
Main Setup Menu
The most commonly accessed and modified BIOS settings are in the Main setup menu. The
Main setup menu reports the following configuration information:
•Serial Number—This value is the controller identity.
•BIOS Version and Build Date—These values indicate the version of the PXIe-8881
controller BIOS and the date on which the BIOS was built.
•Hardware Revision—This value identifies the hardware version.
•Embedded Firmware Version—This value helps identify the built-in hardware
capabilities.
•Processor Type, Base/Max Processor Frequency, and Active Processor Cores—These
values indicate the type of processor used in the PXIe-8881 controller, the processor
speed, and the maximum number of processor cores.
•Microcode Revision—This is the microcode revision of your PXIe-8881 processor.
•Total Memory and Frequency—This value indicates the system RAM size and
frequency the BIOS detects.
•PXI Express Chassis Information—These values indicate the overall chassis link
configuration, the link width of each link, and the link speed of each link.
The Main setup menu also includes the following settings:
•System Date—This setting controls the date, which is stored in a battery-backed real-
time clock. Most operating systems also include a way to change this setting. Use <+>
and <-> in conjunction with <Enter> and <Tab> to change these values.
•System Time—This setting controls the time of day, which is stored in a battery-backed
real-time clock. Most operating systems include a way to change this setting. Use <+>
and <-> in conjunction with <Enter> and <Tab> to change these values.
Advanced Setup Menu
This menu contains BIOS settings that normally do not require modification. If you have
specific problems such as unbootable disks or resource conflicts, you may need to examine
these settings.
PXIe-8881 User Manual | © National Instruments Corporation | 5
Caution Changing settings in this menu may result in an unstable or unbootable
controller. If this happens, follow the procedures outlined in the System CMOS
section to restore BIOS settings to their factory defaults.
The Advanced setup menu includes the following settings and submenus:
•System Profile Configuration—Use this setting to access the System Profile
Configuration submenu. Refer to the System Profile Configuration Submenu section for
more information.
•CPU Configuration—Use this setting to access the CPU Configuration submenu. Refer
to the CPU Configuration Submenu section for more information.
•Video Configuration—Use this setting to access the Video Configuration submenu.
Refer to the Video Configuration Submenu section for more information.
•Power/Wake Configuration—Use this setting to access the Power/Wake
Configuration submenu. Refer to the Power/Wake 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.
•Embedded Firmware Programming—Use this setting to access the Embedded
Firmware Programming submenu. Refer to the Embedded Firmware Programming
Submenu section for more information.
•TPM Configuration—Use this setting to access the TPM Configuration submenu.
Refer to the TPM Configuration Submenu section for more information.
•Network Boot Configuration—Use this setting to access the Network Boot
Configuration submenu. Refer to the Network Boot Configuration Submenu section for
more information.
•Thunderbolt Configuration—Use this setting to access the Thunderbolt
Configuration submenu. Refer to the Thunderbolt Configuration Submenu section for
more information.
System Profile Configuration Submenu
Use this submenu to apply alternate settings to the System Profile. Normally, you do not need
to modify these settings, as the factory default settings provide the most compatible and
optimal configuration possible.
•System Profile—This setting specifies which system profile configuration the BIOS
should use to optimize hardware settings depending on application. To configure the
settings optimized for Windows, select Performance Optimized. To customize the
settings manually, select Custom. The default is OS Defined, in which the system detects
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the OS it is in and automatically selects between Performance Optimized or NI Linux
RT Optimized (disables Hyper-Threading).
•Current OS Defined Profile—This setting shows which system profile configuration the
system is currently using based on the OS it is being booted in. It shows either
Performance Optimized or NI Linux RT Optimized. This setting is hidden if OS
Defined is not selected in System Profile.
•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 RTOS, Hyper-Threading is disabled automatically. You can change
this setting only if Custom is selected in System Profile. Otherwise, this setting is greyed
out.
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 RTOS, Hyper-Threading is disabled automatically. You can change
this setting only if Custom is selected in System Profile. Refer to the System Profile
Configuration Submenu section for more information.
•Configure CPU Power Limit—This setting enables standard or extreme performance.
The default value is Standard Performance. Extreme mode runs the CPU at a higher
frequency, which may result in CPU throttling at lower temperatures or workloads and
drawing more power than typical. Operating the CPU while throttled for long periods of
time may reduce the product lifetime. Extreme mode is not recommended for heavy
workloads. If your application is throttling while in extreme mode, use standard mode.
•Enabled CPU Cores—This setting selects the number of active CPU cores for the
processor. Valid values are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, and All.
The default value is All.
•C-States—This setting enables or disables CPU power management. The default value is
Enabled. Enabling C-States allows the processor to put idle CPU cores to sleep, allowing
active cores to run at higher than base frequencies when Turbo Boost is enabled. Enabling
C-States can increase application jitter, so be careful when enabling this setting on a Real
Time system.
•Turbo Boost—This setting enables or disables Intel Turbo Boost technology. The default
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
PXIe-8881 User Manual | © National Instruments Corporation | 7
increase application jitter, so be careful when enabling this setting on a LabVIEW Real-
Time system. To achieve maximum possible Turbo Boost frequencies, also enable the C-
States setting.
•Hardware Prefetcher—This setting enables or disables CPU cache hardware
prefetching. The default value is Disabled when booting RTOS 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
RTOS 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.
•VT-d—This setting enables or disables VT-d. The default value is Enabled. VT-d
improves performance of I/O devices in virtualized environments.
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 Video Device—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 Offboard Video. The default value is Onboard AMD
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, Last State, 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 Last State, the controller returns to
the state it was in when power was lost. When set to Turn On, the controller powers on
when AC power is restored.
•Power Button Behavior—This setting specifies how the PXI Express power button
should behave. Valid options are Enabled and Disabled. The default value is Enabled.
When set to Enabled, 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.
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•PXI Express 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.
•PXI Express Backplane 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 Enabled.
•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 4096 Bytes, 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 Enabled.
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 most compatible and
optimal configuration possible.
•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.
•Overcurrent Reporting—This setting allows the BIOS to notify the operating system of
any USB ports which sources too much current. The default value for this setting is
Disabled.
•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
PXIe-8881 User Manual | © National Instruments Corporation | 9
100 ms, and for a hub port, the delay value is taken from the hub descriptor. When set to
Manual, you can set the delay manually. The default value for this setting is Auto.
•Device Power-Up Delay in Seconds—This setting specifies the number of seconds the
Power-On Self Test waits for a USB device or hub to power on. This setting is visible
only if Device Power-Up Delay is set to Manual. The default is 5 seconds.
In addition, the following option is available for each detected device if a USB mass storage
device is present:
•Emulation Type—This setting specifies how the BIOS presents the USB mass storage
device to the system. You can use this option to present a USB mass storage device as a
Floppy, Forced FDD, Hard Disk, or CD-ROM drive. The default is Auto, which allows
the BIOS to treat small USB flash disk drives as floppy drives and larger USB flash disk
drives as hard disk drives.
Embedded Firmware Submenu
Use this submenu to enable or disable firmware updates at startup. Normally, you do not need
to modify these settings, as the factory default settings provide the most compatible and
optimal configuration possible.
•Current Firmware Version—This item displays the firmware version currently
installed.
•Available Firmware Version—This item displays the firmware version available.
•Embedded Firmware Programming Mode—This setting specifies whether firmware
updates are performed at startup. When enabled, the BIOS checks to see if an older
version of the firmware is currently installed and provides the option to update the
firmware. When disabled, the BIOS does not check the firmware. The default value is
Enabled.
TPM Configuration Submenu
Use this submenu to view the Trusted Platform Module (TPM) hardware type and execute
selected TPM commands.
•Clear TPM—Use this option to clear the TPM.
Caution Clearing the TPM is a destructive operation that may result in the loss of
all data protected by the TPM device.
TPM Physical Presence Confirmation Screen
Some TPM commands may require confirmation of physical presence before they can be
executed. In this case, the system will reboot and the BIOS will present a screen asking for
confirmation to execute the TPM command. You can confirm or reject the execution of the
TPM command.
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