MemTest86 can help diagnose faulty RAM (or rule it out as a cause of system instability). Insufficient RAM is one of the most frustrating computer problems, as symptoms are often random and hard to pin down. Unreliable RAM can cause many problems: corrupted data, crashes, and unexplained behavior. (So there is no need for a future product called MemTest64). This covers both 32-bit and 64-bit machines. The number 86, following the MemTest part of the name, refers to the original x86 CPU instruction set that all of today's PCs use. 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. The download links for the V4 downloads are still provided for those that prefer to work with the V4 bootable images.Free Download PassMark MemTest86 Pro for Windows is the original, free, stand-alone memory testing software for x86 computers. In order to run MemTest86, PCs with legacy BIOS platform must use the older V4 release of MemTest86. However, you must use either Windows, Linux or Mac to create a bootable USB drive.įor information on creating a boot disk in Linux/Mac, visit the Technical Information pageĪs MemTest86 V10.5 supports only the newer UEFI platform, older PCs without UEFI support would be unable to boot MemTest86. The version of Windows, Linux, or Mac being used is irrelevant for execution.
On machines that don't support UEFI, MemTest86 will not boot.
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