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Editors' Review Staff Feb 27, 2009

Although it has a single purpose, this application couldn't push CPU usage to a continuous 100 percent as promised. CPU 100 doesn't even need an interface. It merely displays a dialog information box with a simple statement and a URL for donations.

Execute CPU 100 and the app does increase CPU usage. However, the load varied considerably during testing and rarely reached 100 percent. Testers also complained that the application often failed to close when requested. Task Manager's End Task command was often the only way to shut down CPU 100.

It's possible CPU 100 could work on some systems. Those with a dire need to see their systems pushed to full load have a small chance CPU 100 will do the trick. There's no monetary risk to trying this application. And it is easy to uninstall.

Full Specifications

What's new in version 1

This version is the first release on CNET


Release November 7, 2008
Date Added March 19, 2008
Version 1

Operating Systems

Operating Systems Windows 2000, Windows Vista, Windows 98, Windows Me, Windows, Windows XP
Additional Requirements Windows 98/Me/2000/XP/Vista


Total Downloads 5,300
Downloads Last Week 0
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Developer's Description

CPU 100 is a program for making your computer's CPU usage go to 100 percent. I originally designed it so I could see how hot my processor would get at continuous full load. You also might find other uses, such as testing adjustable speed fans. This version is the first release on CNET