Hardware - Stress Test With Prime95

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    Hardware - Stress Test With Prime95

    Hardware - Stress Test With Prime95

    How to Stress Test your Hardware for Stability and Heat Problems with Prime95
    Published by
    Designer Media Ltd


    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.
    Hardware - Stress Test With Prime95-capture.png
    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.
    Hardware - Stress Test With Prime95-capture1.png
    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.











  1. Posts : 12,364
    8 Pro x64
       #1

    Don't forget to tick the 'Round off checking' option under Advanced:
    Hardware - Stress Test With Prime95-round-off-checking.jpg

    Otherwise you won't know if one of your cores has failed etc

    (And I personally prefer Realtemp over Speedfan, but that's just my opinion)
      My Computer


  2. Posts : 13,360
    Windows 7 Professional x64
    Thread Starter
       #2

    I have no idea what round-off checking is. Is it enabled by default? When I torture tested my CPU for my overclock, I didn't mess with that at all. I knew it had failed because one of the cores suddenly stopped testing and reported errors.
      My Computer


  3. Posts : 13,360
    Windows 7 Professional x64
    Thread Starter
       #3

    Done. Now all I need is a thumbnail for it...any suggestions?
      My Computer


  4. Posts : 339
    7Home64
       #4

    smarteyeball said:

    (And I personally prefer Realtemp over Speedfan, but that's just my opinion)
    Realtemp's only for Intel, isn't it?
      My Computer


  5. Posts : 13,360
    Windows 7 Professional x64
    Thread Starter
       #5

    scoopeeedoo said:
    smarteyeball said:

    (And I personally prefer Realtemp over Speedfan, but that's just my opinion)
    Realtemp's only for Intel, isn't it?
    Yes, that is correct.
      My Computer


  6. Posts : 12,177
    Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
       #6

    Nice tutorial Jon, nice to be able to link to this instead of writing it all the time.

    I use Realtemp as well.
      My Computer


  7. Posts : 11,991
    Windows 7 Ultimate 32 bit
       #7

    Excellent! Very well done and very helpful. Thanks much.
      My Computer


  8. Posts : 12,177
    Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
       #8

    Just thought I would add the CPU tempurature monitoring programs here for reference.

    For Intel: Real Temp

    For AMD and Intel: Core Temp

    For AMD and Intel: Speedfan (as in the 'Tip' above)

    I see these recommended on many forums, but others work as well.
      My Computer


  9. Posts : 13,360
    Windows 7 Professional x64
    Thread Starter
       #9

    Thank you Dave. :)
      My Computer


 
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