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 Home » Freeware Downloads » Hardware Testing and Diagnostics » Memtest86 Free v9.3   
File - Download Memtest86 Free v9.3

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Memtest86 Free v9.3

industry standard for memory diagnostics

MemTest86 is the original, free, stand-alone memory testing software for x86 and ARM computers.

Boots from USB flash drives to test the RAM in your computer for faults.

Utilizing algorithms that have been in development for over 20 years.

Industry standard since 1994.


PassMark MemTest86 supports all current technologies:

13 different RAM testing algorithms - including row hammer fault detection*
All RAM types supported (DDR2, DDR3, DDR4, SODIMM, XMP, ECC)
Self-booting off USB or Network (PXE)* boot, without needing DOS, Linux nor Windows
Optimized for UEFI-based x86/ARM systems
Native 64-bit code (since version 5)
ECC error detection & injection*
Secure Boot verified – Code signed by Microsoft
Graphical interface with mouse input
Save logs and create customizable HTML reports
Full test automation via configuration file
Support for memory blacklisting in Windows (badmemorylist) and Linux (BADRAM)
Multi-language support (Chinese, German, Russian, Spanish & more)


IMPORTANT: MemTest86 V8 images support only UEFI boot. On machines that don't support UEFI, MemTest86 will not boot. Please download the older V4 BIOS release for CD or V4 BIOS release for USB of MemTest86 instead.
Installation and usage instructions are available on the Technical Information page
MemTest86 is a stand-alone program that does not require or use any operating system for execution. The version of Windows, Linux, or Mac being used is irrelevant for execution. However, you must use either Windows, Linux or Mac to create a bootable USB drive.

System Requirements

x86 (32/64-bit) or ARM64 based hardware
UEFI platform firmware
Windows, Linux, or Mac OS
USB Flash Drive (>= 512MB capacity)

Version 9.3 (Build 1000) 6/Oct/2021

Support custom test definitions specified by a configuration file. A custom test definition consists of an existing test algorithm, specific test pattern, cache settings, and number of iterations. Custom test definitions are enabled by specifying the TESTCFGFILE parameter (Pro Edition only)
Fixed incorrectly formatted XML Status/TestResult files sent to PXE/TFTP server (Site Edition only)
Fixed incorrect reporting of error endianess for 128-bit test
Fixed bug in displaying/logging ECC error channel/slot number
Fixed report/log files not being saved correctly for non-standard USB flash drive installs
Improved responsiveness of pattern string updated on screen
Display row hammer warning, if applicable, in test completion popup message
Fixed ECC error reporting on AMD Ryzen chipsets to include channel/slot information
Fixed ECC error reporting on AMD Ryzen chipsets with 8 memory channels
Improved robustness of ECC error reporting for Intel Atom C2000 chipsets
Fixed retrieval of DDR4 SPD bytes on Intel Alder Lake chipsets
Added support for parsing DDR3 Module Manufacturer’s Specific Data
Updated blacklist with additional Surface Pro models with display issues

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Downloads Views Developer Last Update Version Size Type Rank
4,191 10,243 Passmark Software <img src=""border="0"> Oct 06, 2021 - 17:53 9.3 build 1000 8.27MB ZIP 5/5, out of 47 Votes.
File Tags
Memtest86  Free  v9.3  
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