Re: [Expert] memtest86 Help

[Richard Mollel]

> On Mon, 25 Sep 2006, Richard Mollel wrote:
> 
> > Hi,
> > I have two poweredge 1750's that have been
> suffering
> > from sudden death syndrome...sort of widely
> reported
> > on mandriva 2006....
> > I have gone step by step trying to isolate
> > issue...including setting up serial console for
> > capture of crash data (usually none!), running a
> > vanilla kernel compiled with same kernel config
> file
> > as Mandriva, same problem persisted.
> > Now i need to check for bad memory...and it seems
> > using memtest v1.65 does not do the trick. The
> memory
> > is ECC memory...and according to documentation,
> for
> > ECC, memtest  needs to know about the chipset. In
> my
> > case, it doesnt know the chipset...so i am
> concerned
> > that all errors i am seeing are because memtest86
> > tests are invalid in my test case, since it does
> not
> > know the chipset.
> > I tested even by swapping all 4GB memory with
> brand
> > new, out of the box chips, 2GB....and same error
> > location is pointed out...and after some time, a
> > sudden death similar to when system is running
> occurs.
> > My PowerEdge Server seems to have the ServerWorks
> > GC-LE chipset....and memtest does not know about
> it.
> > Any other means of testing for bad memory?
> >
> > _Thanks
> >
> > Richard

--- "Brian A. Seklecki"
<lavalamp@spiritual-machines.org> wrote:

> 
> Are you running the Memtest86 bootable ISO or
> running it as a binary 
> within a booted OS/kernel?  I've seen the latter
> suggested on mailing 
> lists and I come to wonder if people even know about
> process virtual 
> address space.
> 
> Obviously the test is useless unless you're running
> the former.  My 
> experience has been that the 1850s and memtest86+
> ISO probe the memory 
> specs, chipset, and bus speeds perfectly fine.  Good
> old genuine Intel.
> 
> Also, Dell has "authorized" memory testing tools
> free for download on 
> their website that thier support people will
> validate a support request on 
> given the results.
> 
> ~BAS
> 
Actually, there is a mandriva rpm (memtest86+) that
installs as a kernel to boot into. I tried that
(v1.60) as well as from bootable floopy (v1.65). Same
results. I am downloading the utilities from Dell
right now.....
_Thanks


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