[CentOS] Memtest86+ running time

[cpolish at surewest.net]

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?
http://www.intel.com/design/packtech/ch_06.pdf
The sad thing is, most ESD problems don't show up right away.
-- 
Charles Polisher