What is MemTest86
MemTest86 is the original, free, stand alone memory testing software for x86 computers. MemTest86 boots from a USB flash drive or CD and tests the RAM in your computer for faults using a series of comprehensive algorithms and test patterns.
The latest version of MemTest86 supports all the current technologies, including
The test algorithms have been developed for over 20 years, with the origin of MemTest86 going back to 1994. See this page for a more detailed history of MemTest86
Why use MemTest86
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.
The number 86 following the MemTest part of the name, refers to the orginal x86 CPU instruction set that all of today's PCs use. This covers both 32bit and 64bit machines. (So there is no need for a future product called MemTest64).
Free or Professional
From V5 of MemTest86 the software is offered as a free edition, or as a paid for Pro edition. The Pro edition offers a number of additional feaures such as customizable reports & automation via a configuration file.
Latest release date:
(See sales page for more pricing details).