Kontron S5500 SEL Troubleshooting - Manual (Page 105)

Manageability Engine (ME) events System Event Log Troubleshooting Guide for Intel® S5500/S3420 series Server Boards
96 Intel order number G74211-001 Revision 1.0
15.4.1 Node Manger Alert Threshold Exceeded – Next Steps
First occurrence of an unacknowledged event will be retransmitted no faster than every 300 milliseconds.
First occurrence of Threshold exceeded event assertion/deassertion will be retransmitted no faster than every 300 milliseconds.
Next steps will depend on the policy that was set. See the Node Manager Specification for more details.