AW: trouble with T3500

[Morten P.D. Stevens]

Hi Alex,

i think this is a hardware based problem with the DDR3 Memory or the the  physical memory slot on your mainboard. (SLOT 6 = 1105 DIMM6)
Also possible is a manufacturing error with some DDR3 modules.

Did you try the dell diagnostic utilities?

I suggest to call the dell support and change the memory modules / mainboard on the affected machines.

Best regards,

Morten

Von: linux-precision-bounces at lists.us.dell.com [mailto:linux-precision-bounces at lists.us.dell.com] Im Auftrag von Alex Mestiashvili
Gesendet: Montag, 17. August 2009 13:24
An: linux-precision at lists.us.dell.com
Betreff: trouble with T3500

Hello  ,
I run into big problem with DELL Precision T3500 workstations .
Our company have got 20 workstations equipped  with :
Xeon X5550 CPU's
12 G of RAM
SAS1068E controller
and Quadro FX 1800 nvidia card .
The problem is that 12 workstation from this 20 are randomly crashing ,
some of them have logs in BIOS like:
Uncorrectable ECC Error SMBIOS Handle=   1105 DIMM6
others just silently crashing after they have been running more then 2-12 days
I don't think that it is a RAM error , because there are at least 6 computers with 12G of ram each(6x2G  memory modules ) which are crashing . exchanging of modules doesn't help.
I have upgraded BIOS to the last revision, but it also didn't help .
They still keep crashing .
We used Debian and Ubuntu distros of Linux and Windows XP as well .
on linux systems computers just hang , no ping , no keyboard actions .
on Windows XP ( installed from  dell cd ) in some cases blue screen shows up with message:
*** Hardware Malfunction
Call your hardware vendor for support
*** The system has halted ***

It seems that DELL support doesn't know about that problems , at least they didn't help up so far , the problem is hard to reproduce , because some of the workstations crashes after weeks of use .

Does anybody of you have seen something like that ? Could it be that this series of Precisions  are completely faulty ?
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