# memtest86plus/memtest86plus

Official repo for Memtest86+

Repository: https://github.com/memtest86plus/memtest86plus
Canonical: https://ross.abutalabs.com/products/memtest86plus
Homepage: https://memtest.org
Language: C
License: GPL-2.0
License Family: copyleft
Last push: 2026-08-19T11:42:45+00:00

## Health v2 (maintenance only)
Score: 82/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 52, longevity 100
- inputs: {"age_days": 1664, "days_push": 14, "days_rel": 109, "gap_med": 275.0, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1757, forks 134 (observed 2026-08-28T04:05:32.292690+00:00)

## What it is
Memtest86+ is a free, open-source, stand-alone memory tester for x86, x86-64, ARM AArch64, and LoongArch64 computers. It boots directly from BIOS/UEFI or a bootloader and thoroughly tests system RAM independent of any operating system.

## Use cases
- test if my RAM is faulty
- diagnose random crashes and freezes on my PC
- validate memory stability after overclocking
- check new server RAM before production
- run a thorough memory test outside the OS
- create a bootable USB memory testing tool

## When to choose
- you suspect faulty RAM causing crashes or instability
- you need to test all system memory without OS restrictions
- you want a free, open-source alternative to PassMark Memtest86
- you need to validate memory after overclocking or building a new PC

## When to avoid
- you need memory testing from within a running operating system
- you need closed-source vendor support or commercial licensing
- you need non-x86/ARM/LoongArch architectures

## Facets
- artifact type: application
- maturity: active
- function: testing, benchmarking
- domain: hardware, developer-tools, operating-systems
- platform: cross-platform
- tags: ram-testing, memory-diagnostics, bootable, hardware-diagnostics, uefi, bios, linux

## Member repositories
- memtest86plus/memtest86plus (main) score 82

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:32.292690+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:27:40.005799+00:00, confidence not recorded.
  - readme: https://github.com/memtest86plus/memtest86plus (fetched 2026-08-28T04:05:32.292690+00:00, sha 41670555df7c)
  - homepage: https://memtest.org (fetched 2026-08-29T11:05:50.433214+00:00, sha 26525ef81005)
- Data as of 2026-08-30T08:39:29.467469+00:00.