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Old 06-01-2012, 12:31 PM   #1
Vkthor
LQ Newbie
 
Registered: Jan 2011
Location: Portugal
Distribution: Ubuntu 12.04 Precise Pangolin
Posts: 6

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Question Seeking: memory test software for Ubuntu 12.04


Hi

My desktop is freezing a lot(*). I have googled some answers and most of them pointed to memory problems.
Previous versions of Ubuntu (in Grub) had a memory test option, I think but since 11.04 I have deleted the windows partition and alocated all disk to Ubuntu so, I have no Grub anymore.

I looked for memory test through Software Center and I have found Systester Pro for US$2.99 Not much but there are no avaliations and no developer website. I could not know if it even could work for what I need.

There's another one, the Thorough real-mode memory tester aka Memtest86+.
I tried it but I did not found any user manual even in the developper's website.
The more close to it I have found was here:http://www.virtualbroker.org/como-te...-no-linux.html
As it is written in Portuguese I'll show the output:
1) $sudo apt-get install memtester (it was installed already)
2) $sudo memtester 4000 5 (I have 4Gb RAM 4x1024=4096Mb)
Code:
vkthor@vkthor-dsk:~$ sudo memtester 4000 5
[sudo] password for vkthor: 
memtester version 4.2.2 (64-bit)
Copyright (C) 2010 Charles Cazabon.
Licensed under the GNU General Public License version 2 (only).

pagesize is 4096
pagesizemask is 0xfffffffffffff000
want 4000MB (4194304000 bytes)
got  4000MB (4194304000 bytes), trying mlock ...
vkthor@vkthor-dsk:~$ echo $?
137
vkthor@vkthor-dsk:~$
Now what? I have a feeling. Not ZERO then *Problem* but I really do not know.
Is there any other program? There are for Windows, but I have no Windows in this machine. Not anymore.
It is a Pentium(R) Dual-Core CPU E5700 @ 3.00GHz × 2 with a GeForce 210/PCIe/SSE2 Ubuntu 12.04 64 bits and HDD 37,9 GB (one 15Gb partition for Ubuntu, 2.0 Gb swap and all rest to /home)

Thanks for reading.
--
(*) More often when I use XBMC Media Center in library mode, not viewing a movie. My CPU goes near the 90% use.
 
Old 06-01-2012, 04:55 PM   #2
jefro
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Registered: Mar 2008
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Try a few memory tests and for a few days. Get OEM hard drive diags too.

https://help.ubuntu.com/community/FaultyHardware

If the system was stable before this version then we may assume some setting may need to be changed or even go back to the prior version.

Any part from hardware to software could be at fault along with any setting or value. Don't forget to consider bios settings may help.
 
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Old 06-01-2012, 05:01 PM   #3
TobiSGD
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Registered: Dec 2009
Location: Hanover, Germany
Distribution: Main: Gentoo Others: What fits the task
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Quote:
Originally Posted by Vkthor View Post
the Thorough real-mode memory tester aka Memtest86+.
You don't need one, just burn it to a CD (like you would do with Ubuntu), boot from it and let it run for a few hours. If it don't show red error messages your RAM is OK.
From my experiences, freezes are most likely caused by faulty power supply units. Test if you get more freezes when the system is under heavy load (like encoding a movie or running a hardware demanding game). Also have a look at your temperatures, may be your system is overheating.
 
1 members found this post helpful.
Old 06-11-2012, 05:43 AM   #4
Vkthor
LQ Newbie
 
Registered: Jan 2011
Location: Portugal
Distribution: Ubuntu 12.04 Precise Pangolin
Posts: 6

Original Poster
Rep: Reputation: 0
Talking The solution

Quote:
Originally Posted by Vkthor View Post
Hi

My desktop is freezing a lot(*). I have googled some answers and most of them pointed to memory problems.
Previous versions of Ubuntu (in Grub) had a memory test option, (snip, snip...)
Hi.
Thanks a lot for your help.
It took me a lot of time and many, many tries because maybe I did not understood or was no luck.

@jefro
Quote:
Try a few memory tests and for a few days.
@TobiSGD
Quote:
You don't need one, just burn it to a CD (like you would do with Ubuntu), boot from it and let it run for a few hours.
Yes, that was what I was trying to do but I could not realize how to do it.
:-)

I had always used this link to download Ubuntu: http://www.ubuntu.com/start-download...32&release=lts and I could not get the memory test to work because the CD always went in the «Try Ubuntu» mode.

Then I could find this article (in Portuguese) http://ubuntued.info/faca-download-d...ecise-pangolin and could read about an alternate download package: http://releases.ubuntu.com/precise/u...nate-amd64.iso

I have used it, burned a new CD, started it and could (at last) see what I wanted: a menu with the check memory option.

After 8 hours of test and six pass times just a single byte was faulty once. I think it is no reason for replace a 4Gb memory

Although people say that the 64bits Ubuntu version is quite stable I will now try the Canonical recommended 32bits version. But this is now out of the thread subject.

:-)
 
  


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