There are many alternatives to Memtest86+ for Linux if you are looking for a replacement. The best Linux alternative is PassMark MemTest86, which is free. If that doesn't suit you, our users have ranked more than 10 alternatives to Memtest86+ and three of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Memtest86+ are GoldMemory and RAM Stress Test Pro2.
MemTest86 is a memory test for x86 computers. This includes 64-bit machines.
There are many good approaches for testing memory. However, many tests simply throw some patterns at memory without much thought or knowledge of memory architecture or how errors can best be detected. T.
R.S.T. Pro2 is the definitive memory diagnostic and validation tool designed for the rigorous testing needs of desktop & server memory manufacturers, system builders, design engineers, and service professionals. Powerful new features and advanced functionality make R.S.T.
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MemTest86 is the original ram testing program. It is native 64bit, supports ECC RAM, has mouse support, runs in UEFI and has row hammer testing. The 'MemTest86+' version is a unmaintained fork of the original code.