Hi there,
I have a possible solution. Found this post about the performance counters (CPU Usage in SSMS is just an performance counter) https://social.technet.microsoft.com/Forums/windowsserver/de-DE/cb66af1c-0e3f-440b-9480-b94b4b8c4c38/event-id-2004-error-source-perfnet?forum=exchangesvradmin
I havn't tried it yet. But our servers are HPE servers with the HPE agent on them.