[CentOS] Memtest86+ running time

cpolish at surewest.net cpolish at surewest.net
Wed Nov 3 22:41:56 EDT 2010

Bob McConnell wrote:
> Jake Shipton wrote:
> > Akemi Yagi wrote:
> >> Keith Roberts wrote:
> >>> I have run one full test and got no errors on the memory
> >>> module. Is it worth keeping it running overnight, just to
> >>> see if temperature changes will afect the test?
> >> I had a system that started crashing randomly. I ran memtest overnight
> >> (about 10 hrs) but it did not report any errors. Next time I extended
> >> the run to 18 hrs or so and finally saw errors.  Replacing the RAM
> >> solved the crash problem. So, I would recommend running memtest for
> >> one full day.
> >>
> > I agree. Usually, when systems crash due to possibly memory related
> > errors I let them run testing for 24 hours, or if they have lots of
> > memory possibly longer (48 hours) to allow all memory to be fully
> > tested. :-)
> > 
> And make sure you button the cabinet back up, with all covers in place 
> and put it back on the rack where it normally sits. Running this test 
> with the case open or sitting in free air is a waste of time unless that 
> is how the system usually operates. All memory testing has to be done 
> under normal working conditions to get the maximum benefit.

And, you're using reasonable precautions against ESD, right?
The sad thing is, most ESD problems don't show up right away.
Charles Polisher

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