Hardware - Stress Test With Prime95

How to Stress Test your Hardware for Stability and Heat Problems with Prime95​

   Tip

Be sure to keep an eye on your temperatures when running these tests, especially the Large FFTs. I recommend the free utility Speedfan.

1. Download the appropriate 32-bit or 64-bit Windows version of Prime95 from this link: Free Software - GIMPS

You can skip down to step 2 on that page; it is not necessary to register, if all you want to do is torture test.

2. Run the Prime95.exe file. If the UAC warning appears, click "Yes" to allow it.

3. Select "Just Stress Testing" in the first window that appears.

4. Select "Small FFTs", or whatever tests someone asks you to run. Prime95 will automatically select the maximum number of threads reported by Windows in the "Number of threads to run" box.

5. Keep an eye on your temperatures, and stop the test if the machine starts to overheat.

6. Leave the test running for up to 2 hours, unless errors occur sooner. Errors will show up by one or more of the workers stopping.

   Note

As with all hardware tests, Prime95 is not fail-safe. If the test passes for 2 hours with no errors, it is most likely to be stable. Unfortunately, it sometimes makes mistakes and gives a clean bill of health to faulty hardware.

Related Tutorials

---

• How to Stress Test a Video Card with Furmark
• How to Test and Diagnose RAM Issues with Memtest86+
• Test your CPU Stability with IntelBurnTest
• How to Diagnose Intel CPU with Intel Processor Diagnostic Tool

 

[RoasterMen]

Use task manage and check if all threads are under 100% load when the Prime95 test is running. If it's under 100% load then it is running.

 

[Layback Bear]

Check out Advanced and or Options at the top of the page. Make a selection.

Then open RealTemp and watch the load and temps.

Jack

 

[ICIT2LOL]

Ok I was looking for a screen that showed it actually running so what is that screen for?

 

[ICIT2LOL]

Use task manage and check if all threads are under 100% load when the Prime95 test is running. If it's under 100% load then it is running.

Ok and is that correct for that much RAM to be used too??

 

[ICIT2LOL]

Check out Advanced and or Options at the top of the page. Make a selection.

Then open RealTemp and watch the load and temps.

Jack

Ok Jack I chose torture test and this is after about four to five minutes.

 

[Layback Bear]

It all depends what test you select.
Some are cpu heavy and some are ram heavy also.

Jack

 

[RoasterMen]

The CPU test seems to be alright. I'll have to check on my system if I get the same RAM usage too.

EDIT: I just want to ask if you selected the Blend test in Prime95? It uses somewhat bigger percentage of RAM to my system (Almost all).

 

[ICIT2LOL]

NO my CPU maxed at 100% and he RAM a constant 98.6% and I ran the torture test temps never got above 60C and although Tjunc is 72.5C or something at least the cooling is working fine.

But am now stumped as to what my main problem is I cannot think of anything else to test

 

[RoasterMen]

ok it looks like you chose the Blend test which stresses the CPU and the RAM. The temps look OK too.

Have you tried changing drives? I'm also running out of idea :X

 

[ICIT2LOL]

Yep Roaster mate this is the third in approx 2 months with each OS anyway I have put otu feelers here
New motherboard and CPU - Windows 10 Forums for ideas on a new mobo and CPU as I have simply had it now with this one.