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Tech riderRev. 1 Oct 2026

MemTest86+

Ch 037.1of 30 PC Overclocking Software
  1. 1Runs onLinux, Mac, Windows
  2. 2CostsFree plan
  3. 3Platform supportmulti-platform
  4. 4Stress testingYes
  5. 5Memory testingYes
  6. 6Disk health checksNo
  7. 7GPU testingNo
  8. 8Bootable diagnostic mediaYes
8 lines stated Written from the maker's own pages: memtest.org
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The MemTest86+ homepage

Overview

MemTest86+ is ranked #3 of 30 in PC overclocking software on Specifiction. It runs on Linux, macOS, Windows. There is a free plan.

MemTest86+ plans and pricing

All plans
Free and open-source Free stand-alone memory tester · GPLv2 · private or commercial use memtest.org · 1 Oct 2026

Compared on PC overclocking software

Free plan
Yesmemtest.org
Platform support
multi-platformmemtest.org
Stress testing
Yesmemtest.org
Memory testing
Yesmemtest.org
Disk health checks
Nomemtest.org
GPU testing
Nomemtest.org
Bootable diagnostic media
Yesmemtest.org

Facts

Purpose
Memtest86+ is a free, open-source, stand-alone memory tester for IA-32, x86-64, and LoongArch64 systems.memtest.org · 1 Oct 2026
Memory access
It can access almost all computer memory without being restricted by operating-system memory or UEFI libraries.memtest.org · 1 Oct 2026
Architectures
The README says it supports x86, x86-64, ARM AArch64, and LoongArch64 computers.memtest.org · 1 Oct 2026
Boot modes
It can run directly from legacy or UEFI BIOS or through Linux boot protocols.memtest.org · 1 Oct 2026
Testing purpose
It uses various algorithms to detect memory failures and troubleshoot crashes, freezes, and system instability.memtest.org · 1 Oct 2026
Supported media
It can run from a FAT32 USB flash drive, CD-ROM, or network boot using PXE.memtest.org · 1 Oct 2026
Network boot
For PXE, memtest.bin can be used with BIOS PXE and memtest.efi with UEFI PXE as an iPXE or PXELINUX payload.memtest.org · 1 Oct 2026
Algorithms
Its documented algorithms include moving inversions and Modulo-20 testing.memtest.org · 1 Oct 2026
Execution
Memtest86+ executes indefinitely, and the pass counter increments after all selected tests have run.memtest.org · 1 Oct 2026
Secure Boot
The binary is not signed by Microsoft, so Secure Boot must be temporarily disabled.memtest.org · 1 Oct 2026
USB limitation
The USB drivers are still work in progress and not all USB devices are supported.memtest.org · 1 Oct 2026
License
Memtest86+ is released under GNU GPL version 2 with no restrictions beyond the GPL for private or commercial use.memtest.org · 1 Oct 2026
Build environment
The build is tested on Linux and uses the GNU toolchain, including GCC, binutils, and make.memtest.org · 1 Oct 2026
Release support
Stable and nightly binaries are available, but nightly builds are automatically generated, fully untested, and unsupported.memtest.org · 1 Oct 2026
Support channel
The project asks users to submit bug reports on its official GitHub page with hardware and reproduction details.memtest.org · 1 Oct 2026

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Sources