On Sep 7, 2006, at 6:02 PM, Ed Howland wrote: > If you run it at different times, say after powered down for 12 hours, > then when powered up for at least 1 hour, do you get the same results. > If you get different results that aren't even in the same bank's > address range, it is likely to be the controller chip, otherwise the > bank. > > ... > >> We also ran Dell's own memory diagnostic, which didn't produce any >> errors. > > Just putting on my conspiracy hat here, but doesn't Dell benefit as a > company if their testing system finds fewer errors (i.e. their quality > must be higher?) > > I'd sooner trust another testing software first. Can you move the > banks around? Do you have another Dell server to swap with?
On this particular system we did all of the suggestions from the Memtest86 page[1]: 1) Removing modules 2) Rotating modules 3) Replacing modules Yet, we still got errors, although we didn't note if they were the same errors. We then did the following tests: 1) ran Memtest on a second PowerEdge 1750. Result: no errors. 2) removed the RAM from the second machine, installed the RAM from the first machine into the second machine, and reran the test. Result: no errors. 3) installed the RAM removed from the second machine into the first machine and reran the test. Result: errors. We haven't checked to see if the errors are the same errors as before. In any case, these tests suggest that something is amiss on the MoBo of the first machine. >> The questions I have are: >> >> 1) does are machine have problems with RAM or not? > Probably, esp. if repeated test runs under diff conditions (uptime, > heat, cosmic rays exposure) still produce errors. >> 2) what do the errors that Memtest86 output mean? > See above >> 3) why is there a discrepancy between Dell's test and Memtest86? > Dell probably sucks more at this, maybe on purpose. Which puts us in a challenging position: how do we convince Dell there's something wrong with the machine, especially since the machines are coming off warranty in just under a month? Regards, - Robert http://www.cwelug.org/downloads Help others get OpenSource software. Distribute FLOSS for Windows, Linux, *BSD, and MacOS X with BitTorrent _______________________________________________ CWE-LUG mailing list [email protected] http://www.cwelug.org/ http://www.cwelug.org/archives/ http://www.cwelug.org/mailinglist/
