Memtest86 9.1 freeware

For windows installation begin by downloading either the Pre-Compiled Windows package to build a boot-able floppy disk or an ISO (zip version) to create a boot-able CD-ROM. After the file is downloaded an extract must be done to uncompress the file(s). To extract right click on the downloaded file and select the "Extract All" option. ...

Author MemTest86
Released 2021-05-21
Filesize 8.20 MB
Downloads 2278
OS Windows 2000, Windows 2003, Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64
Installation Instal And Uninstall
Keywords Memtest, Memory test, Test ram, Ram test, Ram tester, Memory manager, Memory management, Memory benchmark, Memtest 86
Users' rating
(19 rating)
Memtest86 - check usb drive Freeware Download Notice

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Memtest86 freeware - The Latest User Reviews
Memtest86 freeware - The Latest Versions History
9.1 May 21, 2021 New Release Fixed parsing of SMBIOS memory device structure for compatibility with DDR5 DIMM data
Fixed non-page aligned addresses for ADDRLIMLO/ADDRLIMHI configuration file parameters
Fixed hang when running in UEFI Shell caused by improper cleanup of localization strings after an exit from a previous MemTest86 run.
Added support for retrieving CPU info for Intel Rocket Lake chipsets
Added support for retrieving CPU info for Intel Tiger Lake chipsets
Fixed misalignment of text containing full-width characters
9.0 Feb 10, 2021 New Release New Features:
Support UEFI-based ARM systems (arm64/aarch64), including memory test algorithms ported to ARM64 and optimized using hand-written assembly code. Special thanks to Simula eX³ project ( for providing high-end ARM64 systems for testing.
Added BADRAM & badmemorylist formatted strings and instructions in the exported HTML report to mask defective memory addresses (Pro only)
Revamped RAM SPD screen in the Main Menu with graphical view of all RAM slots
Added preliminary support for DIMM temperature reporting (when supported by DIMM)
Added option to change save location of logs/reports to another disk volume (file system)
Added prompt on various exit options (shutdown, reboot, exit to BIOS) on application exit.
Added keyboard shortcut (F12) to save screenshot to file within the Main Menu
Support for saving test results to a byte-packed, binary file for storage-limited systems
Support for passing configuration parameters via command line arguments
8.4 Apr 10, 2020 New Release Fixes/Enhancements:
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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