| LAST VERSION : 1.27 | LAST
UPDATE : 10/12/2004 |
Based on the well-known original memtest86 written by Chris Brady, memtest86+ is a port by some members of the x86-secret team. Our goal is to provide an up-to-date and completly reliable version of
this software tool aimed at memory failures detection.
Memtest86+ is, like the original, 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 now available. See here
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), 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 change logs for memtest86+ since first release :
*** Enhancements in v1.27 : ***
- New Features
- Add Support for nVidia nForce 4
- Add Support for FSB1066 P4 EE
- Add Support for Intel i925XE
- Add Support for 90nm Athlon 64
- Add a special "Beep on Error" Mode (See Menu #6)
- Bug Fixes
- Correct Athlon 64 detected as Sempron
- Solve the P4 0.18 µm FSB detection bug
- Some code optimizations
Enhancements in v1.26 :
Enhancements in v1.20 :
Enhancements in v1.15 :
Enhancements in v1.11 :
Enhancements in v1.00 (Based on Memtest86 V3.0) :
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+ V1.27 (10/12/2004) **
* Memtest86+ V1.26 (09/02/2004) *
* Memtest86+ V1.25 (08/29/2004) *
* Memtest86+ V1.20 (06/28/2004) *
* Memtest86+ V1.15 (05/17/2004) *
Here is the source code (under GPL) :
** Memtest86+ V1.27 (10/12/2004) **
* Memtest86+ V1.26 (08/30/2004) *
* Memtest86+ V1.25 (08/29/2004) *
* Memtest86+ V1.20 (06/28/2004) *
* Memtest86+ V1.15 (05/17/2004) *
* Memtest86+ V1.11 (02/17/2004) *
An official forum for all features Requests & bugs fixes has been created on forum.x86-secret.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 --
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.
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)
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.
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 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 lechenejb for memtest86+ logo.
Thanks to all Beta-testers.
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
Donator List (Thank you !) :
- 09/25/2004 -> Michael Griffith
