System-Board Layouts; System-Board Connectors - Lenovo Flex System x440 Compute Node Installation And Service Manual

When you turn off the compute node, it is still connected to power through the Flex System chassis. The
compute node can respond to requests from the IMM2, such as a remote request to turn on the compute
node. To remove all power from the compute node, you must remove it from the Flex System chassis.
Before you turn off the compute node, shut down the operating system. See the operating-system
documentation for information about shutting down the operating system.
The compute node can be turned off in any of the following ways:
• The compute node can turn off automatically as part of the operating system shutdown process (if this
feature is supported by the operating system). See your operating-system documentation for more
information.
• You can press the power button on the compute node (see
LEDs" on page 14). This starts an orderly shutdown of the operating system, if this feature is supported by
the operating system.
• If the operating system stops functioning, you can press and hold the power button for more than 4
seconds to turn off the compute node.
Attention: Pressing the power button for 4 seconds forces the operating system to shut down
immediately. Data loss is possible.
• You can turn off the compute node through the CMM power command, the CMM web interface, the
Lenovo XClarity Administrator (if available), or the Flex System Manager management software (if
available).
– For more information about the CMM power command, see the
Module: Command-Line Interface Reference Guide" at http://pic.dhe.ibm.com/infocenter/flexsys/
information/topic/com.lenovo.acc.cmm.doc/cli_ command_ power.html
– From the CMM web interface, select Compute Nodes from the Chassis Management menu. All fields
and options are described in the CMM web interface online help. For more information, see the
System Chassis Management Module: User's Guide" at http://pic.dhe.ibm.com/infocenter/flexsys/
information/topic/com.lenovo.acc.cmm.doc/cmm_user_guide.html
– For more information about the Lenovo XClarity Administrator, see
documents/LNVO-XCLARIT
– For more information about the Flex System Manager management software, see
Software: Installation and Service Guide" at http://pic.dhe.ibm.com/infocenter/flexsys/information/topic/
com.ibm.acc.8731.doc/product_ page.html

System-board layouts

Use this information to locate the connectors, LEDs, jumpers, and switches on the system board.

System-board connectors

Use this information to locate compute node system-board components and connectors for optional
devices.
The following illustration shows the system-board components, including connectors for user-installable
optional devices, in the compute node.
Lenovo Flex System x440 Compute NodeInstallation and Service Guide
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"Compute node controls, connectors, and
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