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The standard for memory diagnostics

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

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

Download Buy MemTest86 Pro

What is
MemTest86

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

MemTest86 boots from a USB flash drive and tests the RAM in your computer for faults using a series of comprehensive algorithms and test patterns.

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Why test
your ram?

Unreliable RAM can cause a multitude of problems. Corrupted data, crashes and unexplained behaviour.

Bad RAM is one of the most frustrating computer problems to have as symptoms are often random and hard to pin down. MemTest86 can help diagnose faulty RAM (or rule it out as a cause of system instability). As such it is often used by system builders, PC repair stores, overclockers & PC manufacturers.

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Features

UEFI

The new graphical standard for BIOS

Network (PXE) boot

Large scale, disk-less deployment to 100+ test targets

Reports / Logs

Generate customizable HTML reports

Identify faulty component

Decode failed DIMM / chip from error address

Self-booting USB

No O/S required

All RAM types supported

DDR2 / DDR3 / (LP)DDR4 / (LP)DDR5(x) / ECC / CDIMM / CAMM2

Multi-language support

Chinese, German, Russian, Japanese & more

x86/64 & ARM CPU support

x86 (32/64-bit) or ARM64 based hardware

Graphical interface

and mouse support

Test algorithms providing extensive coverage

14 test algorithms including SIMD, row hammer and DMA tests

Secure boot signed

code integrity verified by Microsoft

Production line automation

Manage production line memory testing via PassMark Management Console

Licensing?

Free, Professional or Site Edition

Since MemTest86 v5, the software is offered as a Free edition, or as a paid for Pro and Site edition. The Pro edition offers a number of additional features such as customizable reports & automation via a configuration file. The Site edition includes all features in the Pro Edition but also supports scalable deployment of MemTest86 across LAN via PXE boot.

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