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| LATEST VERSION : 5.01 |
LAST
UPDATE : 27/09/2013
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Based on the well-known original memtest86
written by Chris Brady, memtest86+ is a port by some members of the x86-secret
team, now working at www.canardpc.com. Our goal is to provide an up-to-date and completly reliable version of
this software tool aimed at memory failures detection. Memtest86+ was, is and will
always be a free, open-source software. The original Memtest86 is now handled by
PassMark® Software Pty Ltd.
Memtest86+ is released under the terms of the Gnu Public License (GPL). No restrictions for use, private or commercial exist other than the ones mentioned in
the Gnu Public License (GPL). Texts about the original version was taken from the
original website and written by Chris Brady.
PS : A newsletter for memtest86+ updates is available / Donation for Memtest86+ welcome. Please support free GPL software.
The first version of Memtest86+ was released on early 2004, based on memtest86 v3.0 that was not updated since mid-2002. Our main challenge was to provide an up-to-date version of this useful tool, as reliable than the original. Our work started when we got the first AMD64 system. Unfortunatly, the original memtest v3.0 didn't run at all. After looking at the source code, we fixed the bug.After some days, I saw lot of other things like chipsets or CPU that were not correctly detected or not detected at all. As I'm the chief-editor of a french hardware website (www.x86-secret.com now integrated into www.canardpc.com), I have access to lot of recent hardware and I can test and debug on quite all available motherboards on the market. After adding detection for all current CPUs, I've added detection for all current chipsets (SiS, VIA, nVidia, Intel) and ECC Polling for AMD64, i875P and E7205. Then, I decided to display some useful settings for the most popular chipsets. For exemple, on i865PE/i875P series, memtest86+ will now display FSB & Memory frequency, PAT status, memory timings, ECC status and the number of memory channels. Next version will perhaps contain several enhancements and bug-fixes.
Here is all the latest change logs for memtest86+ :
*** Enhancements in v5.01 : ***
- New Features
- Added support for up to 2 TB of RAM on X64 CPUs
- Added experimental SMT support up to 32 cores (Press F2 to enable at startup)
- Added complete detection for memory controllers
- Added Motherboard Manufacturer & Model reporting
- Added CPU temperature reporting
- Added enhanced Fail Safe Mode (Press F1 at startup)
- Added support for Intel "Sandy Bridge-E" CPUs
- Added support for Intel "Ivy Bridge" CPUs
- Added preliminary support for Intel "Haswell" CPUs (Core 4th Gen)
- Added preliminary support for Intel "Haswell-ULT" CPUs
- Added support for AMD "Kabini" (K16) CPUs
- Added support for AMD "Bulldozer" CPUs
- Added support for AMD "Trinity" CPUs
- Added support for AMD E-/C-/G-/Z- "Bobcat" CPUs
- Added support for Intel Atom "Pineview" CPUs
- Added support for Intel Atom "Cedar Trail" CPUs
- Added SPD detection on most AMD Chipsets
- Bug Fixes
- Enforced Coreboot support
- Optimized run time for faster memory error detection
- Rewriten lots of memory timings detection cod
- Corrected bugs, bugs and more bugs (some could remain)
Enhancements in v4.20 :
Enhancements in v4.10 :
Enhancements in v4.00 :
PS : Memtest86+ "3.00" was skipped and renamed 4.00 in order to avoid confusion with the original Memtest.
Enhancements in v2.11 :
Enhancements in v2.10 :
Enhancements in v2.01 :
Enhancements in v2.00 :
Some screenshots of memtest86+ on third recent platforms (i865/i875 - nForce2 - AMD64) :
Memtest86+ V1.00 on i875P |
Memtest86+ V1.00 on nForce2 |
Memtest86+ V1.00 on AMD64 |
Here is some pre-compiled distributions of memtest86+. Memtest86+ comes in three different way, first is a pre-build bootable ISO, second is a bootable binary and third an installable package for creating a bootable floppy. Third version are compressed in .zip and .tar.gz.
** Memtest86+ V5.01 (27/09/2013)**
* Memtest86+ V4.20 (25/01/2011) *
* Memtest86+ V4.10 (04/05/2010) *
* Memtest86+ V4.00 (22/09/2009) *
* Memtest86+ V2.11 (22/12/2008) *
* Memtest86+ V2.10 (15/11/2008) *
* Memtest86+ V2.01 (21/02/2008) *
* Memtest86+ V2.00 (08/02/2008) *
Here is the source code (under GPL) :
** Memtest86+ V5.01 (27/09/2013) **
* Memtest86+ V4.20 (25/01/2011) *
* Memtest86+ V4.10 (04/05/2010) *
* Memtest86+ V4.00 (22/09/2009) *
* Memtest86+ V2.11 (22/12/2008) *
* Memtest86+ V2.10 (15/11/2008) *
* Memtest86+ V2.01 (21/02/2008) *
* Memtest86+ V2.00 (08/02/2008) *
-= Features Requests & Features Requests =-An official forum for all features Requests & bugs fixes has been created on forum.canardpc.com. Even if the main forum is in french, the memtest86+ forum is *ONLY* in english. No registration required to post but *NO* help will be given to hardware issues. This forum is only dedicated to features requests and bug fixes for memtest86+. All other post will be erased.
-- Offical Memtest86+ Forum --
-= Memtest86+ Newsletter =-The Memtest86+ Newsletter is only intended to provide an information about new Memtest86+ updates. Nothing more will be sent. Of course, the emails addresses provided will NEVER be passed to others and will be kept STRICTLY confidential. Subscribers will received an email with the changelog when a new version of memtest will be released.
-= Author of Memtest86+ =-Memtest86+ is written by Samuel DEMEULEMEESTER, chief editor of www.x86-secret.com (visit us). You can send an email to memtest[nospam]@memtest.org (sorry for the syntax, remove [nospam]). But don't expect an answer...
PS : Again, the original author of memtest86 is Chris Brady (www.memtest86.com)
-= Contributors of Memtest86/Memtest86+ =-The initial versions of the source files bootsect.S, setup.S, head.S and build.c are from the Linux 1.2.1 kernel and have been heavily modified.
Doug Sisk provided code to support a console connected via a serial port.
Code to create BadRAM patterns was provided by Rick van Rein.
Screen buffer code was provided by Jani Averbach.
On-fly timings change for A64/i865/915 was provided by Eric and Wee
Eric Biederman reworked the build process making it far simpler and also to produce a network bootable ELF image. He produce a nice patch in mid-2003 which was included in memtest86+
Memtest86+ Loader (and lots of help) was provided by Eric Auer.
Udo Rader create a piece of code for better badram support (remove duplicate)
Thanks to Franck Delattre (www.cpuid.org) for his help.
Thanks to Michal Schmidt, Yann D. and Warren Togami for unvaluable support
Thanks to Remko van der Vossen (aka Wichetael) for the FAQ
Thanks to CDH for his help.
Thanks to lechenejb for memtest86+ logo.
Thanks to all 5.xx contributors, especially Passmark guys.
Thanks to all Beta-testers.
-= Donation for Memtest86+ =-We occasionally receive email that ask for a doantion, so, here is the donation section ! So, if you've found memtest86+ useful - maybe it saved you some money or helped you to understand an issue that's been bothering you for ages - then please consider making a donation to support free software and help us face costs that occur (webhosting, buying of some hardware for debugging, ...etc). Don't forget donations are very welcome, but by no means required. However, they will directly increases the amount of time we can spend on developing mt86+.
Your name or company name will be asked in the Paypal's form and it will be added to this page as a mt86+ donator. Any amount is greatly appreciated
Donators List (Thank you !) :
- 05/24/11 -> Michel Machado
- 05/15/11 -> Web Hosting Geeks
- 06/02/08 -> Solange Macarthur
- 02/16/08 -> George Joseph
- 02/01/08 -> Muhammad Haider
- 05/05/05 -> Network Engines
- 03/12/06 -> Steve Tsai
- 12/03/13 -> NDCHost.com
- 04/12/11 -> neoSaej
- 11/23/09 -> KWLUG
- 10/29/10 -> Alexandre LISSY
- 08/03/10 -> Help Desk HESK
- 01/28/07 -> Stephen Mollett
- 03/24/10 -> Puget Computer Systems
- 01/28/08 -> KingTiger Technology
- 05/10/10 -> P.C.
- 11/01/08 -> Kenneth Seymour
- 02/22/08 -> Linulex VOF
- 06/03/10 -> AVADirect Custom Computers
- 10/08/09 -> Bickley Consulting West Inc
- 12/29/13 -> Webpromotion GmbH
- 09/25/04 -> Michael Griffith
- 01/14/14 -> Scankampagne
- 11/01/13 -> Nicolas Chevallier
- 01/17/07 -> Gregory Roussel
- 12/17/05 -> Ian Jones
- 02/22/08 -> Joe Hackman
- 05/25/10 -> David McKeen
- 01/07/05 -> www.memory-up.com
- 07/02/13 -> Webagentur Website Werkstatt
- 12/29/10 -> Torn City
- 11/12/04 -> Mike Ehrlich
- 01/21/14 -> Buy Hosting
- 01/16/06 -> Gleb Shevelev
- 02/15/08 -> Daniel Baye
- 10/28/04 -> www.upgradememory.com
- 07/11/08 -> Marco Kammerer
- 10/20/07 -> Edward Matthews
- 02/02/11 -> David Whitestone
- 05/05/10 -> Allen Webb
- 12/03/10 -> Windows 7 Forums
- 06/04/10 -> Adam Stovicek
- 11/19/04 -> Catalina Computers & Discount
- 12/11/05 -> Leif Nordland
- 01/28/11 -> Jorge Rodriguez
- 03/06/10 -> Riivo Must
- 04/12/11 -> Harrison Metzger
- 06/08/10 -> Olle Franceschi
- 08/29/04 -> Leif Westerlind
- 07/16/10 -> J. M. George
- 03/28/10 -> Robert Trevellyan
- 05/08/08 -> Leonhard Kurz
- 05/08/08 -> Leonhard Kurz
- 10/23/09 -> Barry Jackson
- 07/21/08 -> Brian Won
- 12/27/09 -> Owen Mann
- 03/10/10 -> Daniel Butterfield
- 12/22/08 -> William Agar
- 12/03/08 -> Christopher Sohns
- 10/18/09 -> Victor Tchistiak
- 03/19/08 -> Osmin Camero
- 09/16/08 -> Antoniu Savu
- 11/23/05 -> Gerald Lohr
- 01/24/07 -> Christopher Cargin
- 08/04/07 -> Simulacron
- 03/08/05 -> Dotcom-Computers Ltd
- 12/11/04 -> Nathaniel Bezanson
- 01/04/05 -> Beno?t LEUDET
- 02/03/08 -> Darren Larson
- 02/10/06 -> Larry Rubanka
- 01/17/05 -> Joe Hackman
- 09/06/06 -> Frank McLaughlin
- 12/14/07 -> Duncan Gunn
- 04/07/10 -> Jochen Müller
- 04/11/10 -> Alexandre MORLET
- 06/29/08 -> MonkeyBrains.net
- 11/26/05 -> Scott "abrasion" Lansbury
- 04/17/08 -> Angela Biasini
- 09/04/08 -> Chuck Fox
- 10/24/05 -> Hand In Hand Productions
- 10/07/09 -> Gennaro d'Alessandro
- 10/15/08 -> Louis Julien
- 03/13/06 -> John Hunter
- 07/29/08 -> Sartori Giovanni
- 05/03/08 -> Kristen Sleboda
- 02/25/10 -> Phil Blackburn
- 02/13/08 -> www.casawave.fr
- 05/03/08 -> Kristen Sleboda
- 01/23/05 -> Tomas Runde
- 10/28/09 -> Richard Baker
- 03/02/10 -> William Tidwell
- 02/24/11 -> Liam Matthews
- 03/06/10 -> Jim Houghton
- 11/23/05 -> Johnson Lam Chun Sang
- 03/08/10 -> Gregor Kronenberger
- 02/28/11 -> William Massano
- 11/15/04 -> Anita McIntosh
- 11/28/05 -> Frank Olivieri
- 09/19/04 -> Timothy Thompson
- 02/03/11 -> Nadir Garouche
- 01/06/10 -> Joost van Pinxten
- 12/23/04 -> Ross Porter
- 01/28/05 -> www.poklik.com
- 01/05/05 -> Marc Trummel
- 02/10/05 -> Alexander Forth
- 12/31/10 -> Michael Bartlett
- 01/24/11 -> Timothy Lester
- 04/16/05 -> Stefano Simonetti
- 07/26/05 -> Pauli Borodulin
- 05/06/10 -> Audrius Markevicius
- 01/30/11 -> Pierre Lacombe
- 12/20/09 -> David LeBlanc
- 12/22/09 -> Hans Hermann Weber
- 02/17/10 -> Teknician Solutions
- 01/14/08 -> America Project Services
- 09/24/08 -> Ellington Brown
- 01/28/07 -> Rolf Han?en
- 03/13/07 -> Christian Stuke
- 08/10/08 -> Siegfried Glaser
- 03/12/07 -> Andre Fabiani
- 08/01/08 -> Klaus Nordby
- 06/24/07 -> Neil Anderson
- 08/07/07 -> Phillip Ketron
- 11/26/08 -> Martin Hans
- 05/22/08 -> Lachlan Mackenzie
- 05/10/08 -> David Norman
- 09/02/07 -> Nasir Khan
- 05/10/08 -> David Norman
- 05/22/08 -> Lachlan Mackenzie
- 09/09/07 -> Michael Kalyaano
- 01/29/08 -> Petr Herzig
- 12/24/07 -> Bernd Gordon
- 10/02/08 -> Andrzej Kukowski
- 10/14/08 -> Cahill Casterline Limited
- 12/21/05 -> Richard Gilson
- 12/25/05 -> Michael Haines
- 01/29/08 -> Cooper Bills
- 10/14/09 -> Paul Jurczak
- 02/12/06 -> Raynald Bureau
- 02/09/05 -> Christian Burisch
- 03/20/06 -> Kay-Uwe Reiche
- 11/16/08 -> Jan Kosciuszkiewcz
- 11/26/08 -> Martin Hans
- 11/06/08 -> Alexander Barnes
- 08/09/08 -> Jelle Schefuß
- 10/01/04 -> Donald Alexander
- 12/16/09 -> Jonas Saeys
- 04/16/05 -> Henry Barud Johansen
- 12/12/04 -> Don Komarechka
- 10/14/08 -> J. Rieche
- 10/26/08 -> Alexander Ovcharenko
- 02/17/06 -> Francisco Mercadoallende
- 06/10/10 -> Thyago Martins Correa
- 12/29/04 -> Kathleen O'Connor
- 01/17/10 -> Luke Enderby
- 02/11/10 -> Soren Ragsdale
- 07/21/08 -> Esteban Tobar
- 01/18/05 -> Martin Thomas
- 12/12/04 -> Brian Lance
- 11/16/08 -> Christian Kohler
- 03/15/10 -> Oleg Kazak
