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I would track it down to a specific date &amp;&nbsp;time and check the logs to see what happened at that time. &nbsp;Possibly a backup, large SQL query, Anti Virus scan or other event could cause it.
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I would track it down to a specific date & time and check the logs to see what happened at that time.  Possibly a backup, large SQL query, Anti Virus scan or other event could cause it.

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Mine is the only solution for the &gt;100% state of the processor.
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Mine is the only solution for the >100% state of the processor.

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I had a server's CPU peg this morning forcing us to reboot the machine. &nbsp;I was able to reboot from the OS cleanly. &nbsp;The software that monitors CPU usage tossed it's warning at 9:26 AM. &nbsp;Looking through the logs, I don't see any errors or warnings. &nbsp;<br />
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Looking at the Resource Monitor - I see normal CPU usage, which for this machine is very minimal - typically under 10%. &nbsp;But the &quot;Maximum Frequency&quot; field is running at over 100% - it never drops. &nbsp;What do you make of this?<br />
<a href="https://filedb.experts-exchange.com/incoming/2015/06_w27/921032/Resource-Monitor-CPU-over-100-Percent.pn" target="_blank" class="file-inline" title="CPU running at over 100% (65 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>Resource-Monitor-CPU-over-100-Percent.pn</a>
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Resource-Monitor-CPU-over-100-Percent.pn

I had a server's CPU peg this morning forcing us to reboot the machine.  I was able to reboot from the OS cleanly.  The software that monitors CPU usage tossed it's warning at 9:26 AM.  Looking through the logs, I don't see any errors or warnings.  

Looking at the Resource Monitor - I see normal CPU usage, which for this machine is very minimal - typically under 10%.  But the "Maximum Frequency" field is running at over 100% - it never drops.  What do you make of this?

Processor running at 109% of the Maximum Frequency - CPU Usage well bell 10%

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.

Windows Server 2012

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.