MemTest86

6.9easy start · #11 of 30
in PC Overclocking Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you workyes

Runs on Linux, Mac, self-hosted, Windows.

MemTest86 is ranked #11 of 30 in PC overclocking software on The Geeks Club. It runs on Linux, macOS, Self-hosted, Windows. There is a free plan.

MemTest86 plans and pricing

All plans

Free Edition Free No usage restrictions memtest86.com · 4 Oct 2026

Pro Download $116 once $116.00; free upgrades for 12 months One license per machine running Pro at the same time memtest86.com · 4 Oct 2026

Pro USB Flash Drive $144 once $144.00 plus shipping; free upgrades for 12 months One license per machine running Pro at the same time memtest86.com · 4 Oct 2026

Site Edition $5,557 once $5557.00; free upgrades for 12 months Unlimited users within one organization in one country memtest86.com · 4 Oct 2026

Compared on PC overclocking software

Free plan: Yes
Platform support: multi-platform
Memory testing: Yes
Bootable diagnostic media: Yes
Diagnostic reports: Yes

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OCCT 0 of 4 in the starter kit Lesson 17.2 Universal x86 Tuning Utility 0 of 4 in the starter kit Lesson 27.2 MemTest86+ 0 of 4 in the starter kit Lesson 37.1 RyzenAdj 0 of 4 in the starter kit Lesson 47.1 Intel VTune Profiler 0 of 4 in the starter kit Lesson 57.0 Quick CPU 0 of 4 in the starter kit Lesson 67.0

The record

Purpose: MemTest86 boots from USB and tests computer RAM for faults using memory test algorithms and patterns.
Use cases: The maker says system builders, PC repair stores, overclockers, and PC manufacturers use it to diagnose faulty RAM or rule RAM out as a cause of system instability.
Test coverage: The product page lists 14 test algorithms, including SIMD, Row Hammer, and DMA tests.
Memory support: The product page lists DDR2, DDR3, LPDDR4, LPDDR5(x), ECC, CDIMM, and CAMM2 memory support.
Diagnostic reporting: It can generate customizable HTML reports and decode an error address to identify a failed DIMM or chip on supported configurations.
Automation and deployment: Pro supports full test automation and custom tests through a configuration file, while Site Edition adds scalable LAN deployment through PXE boot.
Integration: Site Edition supports PassMark Management Console integration and reporting.
Security: The product page says MemTest86 binaries support Secure Boot and are signed by Microsoft to verify code integrity.
Free edition limit: The Free Edition supports up to 16 CPU cores; Pro supports up to 512 cores.
Platform requirements: Version 11.7 requires UEFI firmware and x86 or ARM64 hardware, and the maker says it does not support Apple Silicon M-series Macs.
Operating system independence: MemTest86 runs as a standalone program without an operating system, though Windows, Linux, or Intel-based Mac can be used to create its bootable USB drive.
Support: Free Edition support is through the public forum; Pro and Site include phone, email, and forum support plus 12 months of free upgrades.
Company: MemTest86 is a PassMark Software product; PassMark describes itself as a privately owned software development group headquartered in Sydney, Australia, with a California branch office.
Founded: 1994
Price from: Free

Where it ranks on The Geeks Club

Best PC Overclocking Software in 2026#11 of 30
Best Hardware Diagnostic Software in 2026#5 of 25

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Sources

memtest86.com· checked 4 Oct 2026
memtest86.com/compare.html· checked 4 Oct 2026
memtest86.com/technical.htm· checked 4 Oct 2026
memtest86.com/download.htm· checked 4 Oct 2026
passmark.com/about/index.php· checked 4 Oct 2026
memtest86.com/pricing.html· checked 4 Oct 2026