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thorough real-mode memory tester

Memtest86+ scans your RAM for errors.

This tester runs independently of any OS - it is run at computer boot-up, so that it can test *all* of your memory. You may want to look at `memtester', which allows to test your memory within Linux, but this one won't be able to test your whole RAM.

It can output a list of bad RAM regions usable by the BadRAM kernel patch, so that you can still use your old RAM with one or two bad bits.

Memtest86+ is based on memtest86 3.0, and adds support for recent hardware, as well as a number of general-purpose improvements, including many patches to memtest86 available from various sources.

Both memtest86 and memtest86+ are being worked on in parallel.

Package version:4.20-1~bpo60+1


memtest86+ for Debian

Two binary images are provided:

  - A legacy /boot/memtest86+.bin that uses Linux zImage boot

  - An experimental multiboot /boot/memtest86+_multiboot.bin image
    that follows the Multiboot specification.

memtest86+_multiboot.bin is automatically registered against grub2.  For
other bootloaders you'll need to do some manual setup (see


Memtest86++ v4.20

Table of Contents
  1) Introduction
  2) Licensing
  3) Installation
  4) Serial Port Console
  5) Online Commands
  6) Memory Sizing
  7) Error Display
  8) Trouble-shooting Memory Errors
  9) Execution Time
 10) Memory Testing Philosophy
 11) Memtest86+ Test Algorithms
 12) Individual Test Descriptions
 13) Problem Report


memtest86+ (4.20-1~bpo60+1) squeeze-backports; urgency=low

  * Rebuild for squeeze-backports.

 -- Matt Taggart <>  Fri, 22 Jul 2011 01:55:28 -0700

memtest86+ (4.20-1) unstable; urgency=low

  * New upstream release.
  * Acknowledge NMU.
  * Adjust to call genisoimage.
  * Produce a memtest86+.iso using and ship it in
    /usr/lib/memtest86+/.  Add build-d


Memtest86+ V4.20 changelog

	- Added failsafe mode (F1 at startup)


This package was debianized by Yann Dirson <>

It was downloaded from

Browse inside memtest86+_4.20-1~bpo60+1_i386.deb

         [DIR]boot/ (2)  65535+ mirrors
         [DIR]DEBIAN/ (7)  65535+ mirrors
         [DIR]etc/ (1)  65535+ mirrors
         [DIR]usr/ (3)  65535+ mirrors

Download memtest86+_4.20-1~bpo60+1_i386.deb

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