How to memtest 16GB of DDR2?

On Thu, 08 Jan 2009 18:16:45 -0800, propman wrote:

Jim Whitby wrote:
On Thu, 08 Jan 2009 17:21:24 -0800, propman wrote:

pg wrote:


I think I hit a brick wall at www.memtest86.org


http://www.memtest.org/

try http://www.memtest.COM





http://www.memtest.org is the home page for Memtest86+...which I believe
the OP was after. :-)

www.memtest.org is not anything worth seeing. It is owned by some search
engine.

Try any of the links from that page.



--
I like being single. I'm always there when I need me.
-- Art Leo
----------------------
Mandriva Linux release 2009.0 (Official) for x86_64
2.6.27.7-desktop-1mnb AMD Athlon(tm) 64 X2 Dual Core Processor 5000+
----------------------

On Thu, 08 Jan 2009 21:12:28 -0600, Jim Whitby wrote:

On Thu, 08 Jan 2009 18:16:45 -0800, propman wrote:

Jim Whitby wrote:
On Thu, 08 Jan 2009 17:21:24 -0800, propman wrote:

pg wrote:


I think I hit a brick wall at www.memtest86.org


http://www.memtest.org/

try http://www.memtest.COM





http://www.memtest.org is the home page for Memtest86+...which I
believe the OP was after. :-)

www.memtest.org is not anything worth seeing. It is owned by some search
engine.

Try any of the links from that page.

I stand corrected!!! memtest.org is not the same as memtest86.org.

Pardon the old man for being stupid and not being able to read.




--
I like being single. I'm always there when I need me.
-- Art Leo
----------------------
Mandriva Linux release 2009.0 (Official) for x86_64
2.6.27.7-desktop-1mnb AMD Athlon(tm) 64 X2 Dual Core Processor 5000+
----------------------

Jim Whitby wrote:
On Thu, 08 Jan 2009 21:12:28 -0600, Jim Whitby wrote:

On Thu, 08 Jan 2009 18:16:45 -0800, propman wrote:

Jim Whitby wrote:
On Thu, 08 Jan 2009 17:21:24 -0800, propman wrote:

pg wrote:


I think I hit a brick wall at www.memtest86.org


http://www.memtest.org/
try http://www.memtest.COM





http://www.memtest.org is the home page for Memtest86+...which I
believe the OP was after. :-)
www.memtest.org is not anything worth seeing. It is owned by some search
engine.

Try any of the links from that page.

I stand corrected!!! memtest.org is not the same as memtest86.org.

Pardon the old man for being stupid and not being able to read.

Heh! No problem, Jim....you did have the "old man" at this end of things
going there for a couple of minutes though! :-)

propman whose little grey cells ain't what they used to be

Joe Pfeiffer wrote:

VanguardLH writes:

Pascal Hambourg wrote:

Nonsense. Memtest86 does not run under DOS.
If it ran under DOS it would be a 16-bit program.

And what *type* operating system (DOS is a type of OS, not a particular
one) do you think this *application* runs under? The program is NOT
written using machine or assembly code (but the boot sector loader was).
The bootstrap code in your BIOS is not going to load this application
directly into memory and transfer control to it.

The rest of us long ago quit insisting that DOS was generic and
recognized that when somebody says DOS they mean MS-DOS or a clone.

MS-DOS
PC-DOS
FreeDOS
CalderaDOS
DOS Plus
DR-DOS
PTS-DOS
OpenDOS

AmigaDOS
AMSDOS
Apple DOS
Atari DOS
Commodore DOS
TRS-DOS

So it depends on how far you go back or at what point you take a
snapshot of the word "DOS" as representing whatever was in most use at
that snapshot's time frame.


"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" (http://www.memtest86.com/about.html). The boot sector loader
(that your BIOS bootstrap code loads and to which it transfers control)
was written in assembly. That loads the C-written LinuxBIOS program
(http://en.wikipedia.org/wiki/LinuxBIOS) which loads the Linux kernel
which is the DOS that manages the C-written memtest application.

Memtest86 DOES run under an DOS (disk operating system). It's Linux.

The README file makes it pretty clear that a few files started out as
parts of a very old version of Linux; beyond that, it's a standalone
program.

Yep, just like edlin.com, notepad.exe, and winword.exe are standalone
programs - that run atop a DOS.

Where did you find documentation claiming that it loads a Linux
kernel, or that memtest is an application running under it?

Try the links that I provided. The first one is from the memtest site
itself. Download the source code and enjoy looking at bootsec, head,
and linuxbios.c. The 2nd link I got after seeing in the code that
memtest uses coreboot (aka linuxbios).

"propman" wrote:
Jim Whitby wrote:

I stand corrected!!! memtest.org is not the same as memtest86.org.

Pardon the old man for being stupid and not being able to read.

Heh! No problem, Jim....you did have the "old man" at this end of things
going there for a couple of minutes though! :-)

propman whose little grey cells ain't what they used to be

Damn kids, get off my lawn!

Jon

On Thu, 08 Jan 2009 19:39:57 -0600, Jim Whitby wrote:

Ron May's Law:
The quality of correlation is inversly proportional to the density
of of my head. Da da do deee dumb


--
"If Milbank aka hummingHomo and Me.Whore stand by Bear Bottoms,
the idiot who outed himself as William "Bear" Bottoms, the baby killer,
then they are no better than baby killers themselves." Ari ~1Jan09

pg wrote:
Hello.

I'm setting up a new rig, with 4 X 4GB DDR2 modules.

I tried run memtest86 but it only detected 4GB of my memory.

In Linux and in XP-64 I see all 16GB of the RAM.

So how to test the RAM?

Anyone knows?

Please help. Thanks !

The Ubuntu 64-bit live-cd comes with a 64-bit version of Memtest. I'm
pretty sure most Linux distros' live-cd does this also.

Yousuf Khan

In article ,
General Schvantzkoph wrote:
On Wed, 07 Jan 2009 23:36:35 -0800, pg wrote:

Hello.

I'm setting up a new rig, with 4 X 4GB DDR2 modules.

I tried run memtest86 but it only detected 4GB of my memory.

In Linux and in XP-64 I see all 16GB of the RAM.

So how to test the RAM?

Anyone knows?

Please help. Thanks !

Sys_basher will test most of it. Memtest86 runs under DOS so it's a 32
bit program, sys_basher runs under Linux so it can see all of the RAM.
However sys_basher can't identify which DIMM is bad, only that you have a
bad DIMM. The problems is that Linux lacks a call which will translate a
logical address to a physical address, if anyone knows how to do this I'd
appreciate if they would post the instructions for how to do this.


http://www.polybus.com/sys_basher_web/

If it gives the failing address, can't you just divide by 4 GiB (in this
case) to get the bad stick?

--
-eben P
1101000 1110100 1110100 1110000 0111010 0101111 0101111 1110010 1101111
1111001 1100001 1101100 1110100 1111001 0101110 1101101 1101001 1101110
1100101 0101110 1101110 1110101 0111010 0111000 0110001 0101111

On Thu, 8 Jan 2009 23:10:09 -0600, VanguardLH wrote:

So it depends on how far you go back or at what point you take a
snapshot of the word "DOS" as representing whatever was in most use at
that snapshot's time frame.

DOS the point, isn't it?

HAHAHA

I crack me up.
--
Social ecology encompasses the fabric of societal structures,
including peace and human rights, dignity and democracy, employment
and social integration, security and safety." ~ Walter Stahel

On Fri, 9 Jan 2009 20:16:30 -0500, Rant By Dopy wrote:

On Thu, 8 Jan 2009 23:10:09 -0600, VanguardLH wrote:

So it depends on how far you go back or at what point you take a
snapshot of the word "DOS" as representing whatever was in most use at
that snapshot's time frame.

DOS the point, isn't it?

HAHAHA

I crack me up.


--
Peter.
You don't understand Newton's Third Law of Motion?
It's not rocket science, you know.