Memtest86 4.3.6

Published November 14, 2013 by Download Software

Memtest86 is thorough, stand alone memory test for x86 architecture computers. BIOS based memory tests are a quick, cursory check and often miss many of the failures that are detected by Memtest86.

MemTest86 was originally developed by Chris Brady with a first release in 1994. However, some of the testing algorithms used have been under development since 1981 and have been previously implemented on Dec PDP-11, VAX-11/780 and Cray XMP architectures. Since then there has been more than a dozen new versions being released. Support for 64bit, new CPU types, symmetrical multiprocessors and many other features have been added during this period. In Feb 2013, PassMark Software took over the maintenance of the project from Chris.

Before you can use Mestest86 on a Windows system it must first be installed on a CD-ROM, USB flash drive or floppy disk. To create a CD-ROM a system with the capability of creating a CD-Image from an ISO file is required.

Create a boot-able CD-ROM:

Download the Windows MemTest86 ISO image.
Right click on the downloaded file and select the “Extract to Here” option. This places the CD-ROM ISO image into the current folder.
Use the CD burning software available on your system to create a CD-ROM using the extracted ISO image. Be sure that you create a CD image from the ISO file rather than placing a copy of the ISO file onto a data CD. Look for “Burn Image from File” or similar option under the File menu of your CD burning software.

Create a boot-able USB Flash drive:

Download the Windows MemTest86 USB image.
Right click on the downloaded file and select the “Extract to Here” option. This places the USB image and imaging tool into the current folder.
Run the included imageUSB tool, it should already have the image file selected and you just need to choose which connected USB drive to turn into a bootable drive. Note that this will erase all data on the drive.

Create a boot-able floppy:

Download the Windows MemTest86 floppy disk image.
Right click on the downloaded file and select the “Extract to Here” option. This places the floppy disk image into the current folder.
Creating a boot-able floppy disk requires use of a third party program to write the floppy disk image to a disk.

System Requirements:

Operating System: Windows All Version
Language: English-US
License: Freeware
Author: PassMark Software

Changelog:

Fixed crash (particularly for AMD machines) that is seemingly resolved by adding CPU synchronication barriers before and after performing the memory speed test
Fixed an error in setting the barrier structure's base address, preventing a possible crash or freeze of the system.
Added a check to perform a spin lock only when more than 1 CPUs are detected

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