How to Stress Test your CPU

There are loads of reason why someone would want to stress test their CPU. Some of the most common ones are after getting a new CPU or overclocking your existing one. Or perhaps you bought a used one from someone and want to make sure you didn’t get fooled. But before we begin, be sure to check out our GPU Stress Test.


The Software

The first thing we will do is download couple of software for stress testing. We will be using HWMonitor top keep the temperatures in check and Prime95 top do the actual stressing. Both downloads are straightforward. Download and extract of them to somewhere easily accessible like your desktop. We’re ready to go.

The Setup

However, before we begin the test open up HWMonitor and take a look at the idle temps. They should be only slightly above (better if below) your room temperature (this depends on your CPU cooling method, but it should not be too high). Use the + and – symbols to show the temps you want to see and make it look better. Here is what mine looked like at about 40c room temp.Capture

The Test

Finally, open up prime95 it should be in the zip file you downloaded earlier. When you run the program you will be greeted with the following message. Read it if you want then choose ‘Just Stress Testing’.



This should show you another window, choose Blend Test (default) and begin the test. Doing that will give you something like this (note the rise in temperature).


Well, let the test run but keep an eye on the CPU. If its faulty it should stop working and perhaps even crash. If you were testing your cooling then keep an eye on HWMonitor and the temperature should not exceed the maximum recommended temperature. To find out your processors max temp, follow this link. Well, thats all there is to it. I hope you found this useful.

Share Feedback We Want to Hear From You
AI Chatbot Avatar