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Solution # K16184380
Title A %SYS-3-CPUHOG error message is displayed on a Cisco router
Core Issue Causes for the error message include bootup processes, Online Insertion and Removal (OIR) events, attempting to access a bad or missing Flash device, or a Cisco IOS® Software bug.
Resolution The severity of the error depends on the cause. In some cases, no action is required. In other cases, a configuration change or an upgrade may be necessary.

For more information on the %SYS-3-CPUHOG error message as well as troubleshooting steps, refer to What Causes %SYS-3-CPUHOG Messages?.
Problem Type Error message received
When Problem Occurs
After reboot or power cycle (and no other changes)
Intermittent
Error Messages and Warnings %SYS-3-CPUHOG
Direct URL http://www.ciscotaccc.com/core/showcase?case=K16184380