PassMark MemTest86 Pro - 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.
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, overlockers & PC manufacturers.
Features
• 13 different RAM testing algorithms - including row hammer fault detection*
• All RAM types supported (DDR2, DDR3, DDR4, SODIMM, XMP, ECC)
• Self-booting off USB or Network (PXE)* boot, without needing DOS, Linux nor Windows
• Optimized for UEFI-based x86/ARM systems
• Native 64-bit code (since version 5)
• ECC error detection & injection*
• Secure Boot verified – Code signed by Microsoft
• Graphical interface with mouse input
• Save logs and create customizable HTML reports
• Full test automation via configuration file
• Support for memory blacklisting in Windows (badmemorylist) and Linux (BADRAM)
• Multi-language support (Chinese, German, Russian, Spanish & more)
NOTE: This version is FULL version (NOT demo + retail files), which includes Memtest86 v9.3.1000 for UEFI and Memtest86 v4.3.7 for BIOS, and you don't need to replace files, just write to USB flash drive or ISO.
Download: 
Memtest86_v11.2.1000_Pro.iso - 16.4 MB
PassMark MemTest86 Pro 11.2 Build 1000.rar - 23.5 MB