If the server restarts unexpectedly, PowerPivot System Service creates minidump files that contain useful information about ...

If the server restarts unexpectedly, PowerPivot System Service creates minidump files that contain useful information about application state just prior to the crash. This information can be used to diagnose problems with a PowerPivot for SharePoint server. Currently, there are {0} minidump files in the Logs directory: {1}.