Memory testing program for PC - 13 different RAM testing algorithms!

Memtest86

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Memtest86 8.4

  -  9.26 MB  -  Freeware
Free Download

Security Status

  • Latest Version

    Memtest86 11.1

  • Operating System

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10

  • User Rating

    Click to vote

  • Author / Product

    PassMark Software / External Link

  • Filename

    memtest86-usb.zip

  • MD5 Checksum

    b83df24797a16026621a6298828e3984

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Memtest86 8.4.


For those interested in downloading the most recent release of Memtest86 or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download Memtest86 8.4

  • Memtest86 8.4 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Memtest86 8.4 Screenshot 1
  • Memtest86 8.4 Screenshot 2
  • Memtest86 8.4 Screenshot 3
  • Memtest86 8.4 Screenshot 4
  • Memtest86 8.4 Screenshot 5

What's new in this version:

- Added new config file parameter 'SPDMATCH'. If enabled, will look for SPD.spd file which contains the raw bytes to compare SPD bytes to
- Memory is now reserved at the beginning and released at the end of the test session to reduce frequency of memory allocations/release and improve UI responsiveness
- Added fallback when failing to set the menu screen size to the max supported resolution
- Added tftp.remap file for fixing backslash/forward slash issues with uploading XML files when running TFTP server on Linux machines
- Added warning message when failing to inject ECC errors for Ryzen chipsets (due to being disabled in production)
- Added specific Mac Pro models to black list to workaround display and multiprocessing issues
- Added preliminary ECC support for Ryzen Zen 2
- Added preliminary support for retrieving CPU info for Intel Comet Lake chipsets

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