Single node does not power on

1. If you recently installed, moved, or serviced the computer node, reseat the compute node in the bay. If the compute node was not recently installed, moved, or serviced, perform a virtual reseat through the CMM service command. For more information about the CMM service command, see the IBM Flex System Chassis Management Module: Command-Line Interface Reference Guide.
2. Check the event logs for any events that are related to the compute node, and solve them. If an IBM® Flex System Manager management node is installed, check the event log on the management node. Otherwise, check the event log on the chassis management module.
3. Make sure that the Chassis Management Module (CMM) can recognize the compute node. Log in to the Chassis Management Module (CMM) user interface and verify that the compute node appears in the chassis view. If the Chassis Management Module (CMM) cannot recognize the compute node, remove the compute node and inspect the compute node and the back of the node bay to make sure there is no physical damage to the connectors.
4. Make sure that the power policy that is implemented on the Chassis Management Module (CMM) is sufficient to enable the compute node to power on. You can view the power policy from the CMM pmpolicy command and the CMM web interface.
   • For more information about the CMM pmpolicy command, see the IBM Flex System Chassis Management Module: Command-Line Interface Reference Guide.
   • From the CMM web interface, select Power Modules and Management from the Chassis Management menu. For more information, see the IBM Flex System Chassis Management Module: User's Guide. All fields and options are described in the CMM web interface online help.
5. Make sure that the IBM Flex System Manager management node has completed the discovery of the compute node. Log in to the IBM Flex System Manager user interface and verify that the compute node appears in the chassis view from the Chassis Management Module (CMM).
6. Replace the system-board assembly (see Removing the system-board assembly and Installing the system-board assembly).
   Note: Until you are able to replace the system-board assembly, you can attempt to power on the compute node from the Chassis Management Module (CMM) or from the IBM Flex System Manager user interface.

For additional information, see UEFI Compliant Firmware on IBM System x® and BladeCenter® Servers. and the IBM Flex System Quick start guides.