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I am looking for a CPU testing software. So, which would test every possible function of the CPU, many times and in many configurations, and displays its results.

In ideal case, it would be similar in its inner workings to memtest86+, which does with RAM what I am seeking for CPU:

  • minimalistic GUI
  • boot-time functionality for OS-less hw control (i.e. it's independent from whatever OS is installed on the computer, as it includes its own minimalist OS)
  • low-level asm or near-asm implementation

But note, these items are only advantages and not strict requirements.

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  • Ok. I think "every possible function" is quite much if you consider how many different opcodes are there for Intel and Amd. Do you need a burn-in test or are you searching for microcode problems?
    – Marged
    Jan 23, 2016 at 22:19
  • @Marged Yes that is true, especially for undocumented functions. Of course it is impossible to find every possible error in a cpu, but it is enough if an error would be found with a good chance. (Just as in the case of the RAM).
    – peterh
    Jan 23, 2016 at 22:24
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    Why the downvote?
    – peterh
    Jan 23, 2016 at 22:40
  • @peterh looked a bit confusing I guess. Hope my edit made it a bit clearer (please check it I got your idea right ;)
    – Izzy ♦
    Jan 23, 2016 at 23:07
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    Good question and good edits. Got my upvote.
    – RockPaperLz- Mask it or Casket ♦
    Jan 23, 2016 at 23:08

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