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Memtest86 10.7 Build 1000 by PassMark Software

Memtest86 10.7 Build 1000 by PassMark Software
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Memtest86 by PassMark is a comprehensive, free, stand alone memory diagnostic software It is designed to stress test an x86 compatible computer’s random access memory (RAM) for errors.

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. It tries to verify that the RAM will accept and correctly retain arbitrary patterns of data written to it.

Memtest86 writes a series of test patterns to every memory address, reads back the data written, and compares it for errors. Using the information about the chipset you can enhance these tests – particularly in an overclocked system.

PassMark Memtest86 Main Features:

  • 13 different RAM testing algorithms
  • DDR4 RAM (and DDR2 and 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 and more)
  • Self booting off USB, without needing DOS, Linux nor Windows
  • Network (PXE) boot – Scalable, disk-less provisioning from a single PXE server

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 and PC manufacturers.

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 32-bit and 64-bit 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 and 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.

MemTest86 supports booting from the newer UEFI platform.

When booting from UEFI, MemTest86 has access to additional services not available in BIOS including:

  • Native 64-bit support
  • No longer requires the use of the PAE workaround to access more than 4GB of memory. (PAE = Physical Address Extension)
  • Mouse support, where supported by the underlying UEFI system. On older systems a keyboard is still required.
  • Improved USB keyboard support. The keyboard now works on systems that fail to emulate IO Port 64/60 correctly. So Mac USB keyboards are now supported.
  • Improved multi-threading support, where supported by the underlying UEFI system.
  • Reporting of detailed RAM SPD information. Timings, clock speeds, vendor names and much more.
  • Support to writing to the USB drive that MemTest86 is running from for logging and report generation. In all prior MemTest86 releases, there was no disk support.
  • Use of GPT. (GUID Partition Table)
  • ECC RAM support (limited hardware support, ongoing development)
    • Detection of ECC support in both the RAM and memory controller
    • Polling for ECC errors
    • Injection of ECC errors for test purposes. (limited hardware only)
  • Support for DDR4 RAM (and associated hardware), including retrieval and reporting of DDR4-specific SPD details. This includes DDR4 RAM that support Intel XMP 2.0 DDR4 RAM timings
  • Option to disable CPU caching for all tests
  • Support for Secure Boot.
  • Speed improvements of between 10% and 30%+. Especially for tests, #5, #8 & #9. This is the result more moving to native 64bit code, removing the PAE paging hack, switching compilers and using faster random number generation algorithms.
  • Addition of 2 new memory tests to take advantage of 64bit data and SIMD instructions.
  • Support for network PXE boot for scalable, diskless deployment to multiple targets

Changes in Memtest86 10.7 Build 1000:

Fixes/Enhancements

  • Preliminary support for obtaining memory settings for Intel Core chipsets:
    • 2nd gen (Sandy Bridge)
    • 3rd gen (Ivy Bridge)
    • 4th gen (Haswell)
    • 5th gen (Broadwell)
    • 6th gen (Skylake)
    • 7th gen (Kaby lake)
    • 8th gen (Coffee Lake)
    • 9th gen (Coffee Lake Refresh)
    • 10th gen (Comet Lake/Ice Lake)
    • 11th gen (Rocket Lake/Tiger Lake)
    • 12th gen (Alder Lake)
    • 13th gen (Raptor Lake) Core chipsets
  • Preliminary support for obtaining memory settings for Intel Core Ultra chipsets:
    • 1st gen (Meteor Lake)
    • 2nd gen (Arrow Lake)
    • Lunar Lake
  • Preliminary support for obtaining memory settings for Intel Xeon scalable chipsets:
    • 1st gen (Skylake-SP)
    • 2nd gen (Cascade Lake-SP)
    • 3rd gen (Ice Lake-SP)
    • 4th gen (Sapphire Rapids-SP)
    • 5th gen (Emerald Rapids-SP)
  • Preliminary support for obtaining memory settings for Intel Atom X Series (Elkhart Lake) chipsets
  • Preliminary ECC support for the following Intel chipsets:
    • 10th gen core (Ice Lake)
    • 1st gen core ultra (Meteor Lake)
    • 5th gen Xeon scalable (Emerald Rapid)
    • Atom X Series (Elkhart Lake)
  • Preliminary support for module decoding for Intel 10th gen core (Ice Lake) chipsets
  • Added support for reporting various ECC error types (eg. IBECC/Scrub)
  • Fixed rounding of DDR5 latency timings
  • Fixed offsetted temperatures for AMD 19h family chipsets
  • Suppress CPU errors due to UEFI firmware issues once already displayed
  • Display “SPD FAIL” block error message when SPDMATCH check fails after test completion
  • Updated localization strings (courtesy of Nagisa)
  • Updated ImageUSB to v1.5.1006
  • Updated blacklist

Changes in Memtest86 10.6 Build 3000:

  • Added support for CFGDEFAULT tag for multi-config files to specify the default configuration
  • Added support for CFGTIMEOUT tag for multi-config files to specify the timeout in seconds
  • Fixed possible divide by zero error when displaying file system info of attached disks
  • Fixed system address to UMC decoding for AMD Ryzen chipsets
  • Fixed incorrect transfer speed obtained for Alder Lake/Raptor Lake chipsets

Homepage – https://www.memtest86.com

System Requirements:

  • x86 based hardware, 32bit or 64bit
  • UEFI platform firmware
  • Windows, Linux, or Mac OS
  • USB Flash Drive (>= 512MB capacity)

Notes:

  • IMPORTANT: MemTest86 V8 images support only UEFI boot. On machines that don’t support UEFI, MemTest86 will not boot. Please download the older V4 BIOS release of MemTest86 instead.
  • Installation and usage instructions are available on the Technical Information page
  • MemTest86 is a stand-alone program that does not require or use any operating system for execution. The version of Windows, Linux, or Mac being used is irrelevant for execution. However, you must use either Windows, Linux or Mac to create a bootable USB drive.

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