PassMark MemTest86 7.3 Pro Edition



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.

Main Features:
The latest version of MemTest86 supports all the current technologies, including:

- 13 different RAM testing algorithms
- DDR4 RAM (and DDR2 & DDR3) support
- XMP - high performance memory profiles
- UEFI - The new graphical standard for BIOS
- 64bit - From version 5, MemTest86 is native 64bit code
- ECC RAM - support for error-correcting code RAM
- Secure boot - With MemTest86 being code signed by Microsoft
- Graphical interface, mouse support and logging of results to disk
- Foreign language support (Chinese, German & more)
- Self booting off USB or CD, without needing DOS, Linux nor Windows
- Network (PXE) boot - Scalable, disk-less provisioning from a single PXE server
- Dual booting - Will boot to V4 in BIOS and V7 in UEFI from a single flash drive

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.

MemTest naming
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. This covers both 32bit and 64bit machines. (So there is no need for a future product called MemTest64).

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.

What's New in Version 7.3:
Fixes/Enhancements
• CPU cores that are identified as hyperthreads are now disabled by default, due to minimal performance benefits
• Fixed potential system hang caused by memory alignment issues when allocating 128-bit variables on the stack during the 128-bit random number sequence test (Test 12)
• Improved performance of the 128-bit random number sequence test (Test 12) by using SSE2 comparison intrinsics
• Improved performance of the row hammer test (Test 13) by increasing the default step size to 0x1000000 (16MB) for subsequent passes after the first pass. On the first pass, the default step size is 0x4000000 (64MB)
• Reduced test time of the row hammer test (Test 13) by using only a single offset bit to determine the row address pair, rather than cycle through all possible offset bits.
• Added 'ENABLEHT' config file parameter to enable/disable CPU cores identified as hyperthreads
• Added 'HAMMERSTEP' config file parameter to specify the step size for the next row pair to hammer in the row hammer test (Test 13). Increasing the step size reduces the memory test coverage, but will also decrease the test time. By default, the step size is 0x1000000 (16MB)
• Added several known baseboards to to a 'blacklist' of boards that have known issues when running in multiprocessor mode. If a blacklisted baseboard is detected, the Multiprocessor test is skipped during startup and the CPU selection mode is set to single.
• Fixed triggering of ECC error injection on Intel Skylake (Xeon E3 v5) chipset
• Added ECC detection and injection support for Intel KabyLake (Xeon E3 v6 family) chipsets
• Added ECC detection and injection support for Apollo Lake SoC (Atom E3900 Series) chipsets
• Added support for retrieving RAM SPD data on Intel Skylake-E chipsets
• Fixed issue with the test elapsed time having strange values when running in round robin or sequential CPU mode due to the timestamp counter not being synchronized on the CPU cores

Requirements:
- CD or USB Flash drive (>= 256MB capacity)
- Platforms: x86 Systems

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PassMark MemTest86 7.3 Pro Edition - ISO | 24.55 MB
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