On Wed, Mar 20, 2013 at 11:14 AM, Grant Edwards <grant.b.edwa...@gmail.com> wrote: > > On 2013-03-20, Carlos Hendson <skyc...@gmx.net> wrote: > > > That's by no means conclusive, however, I've also run a complete pass of > > memcheck for over an hour without any issues reported. > > FWIW. I've had flakey memory that ran memcheck fine for several hours > and multiple passes -- but if I let it run long enough, it would fail. > I wouldn't be confident unless memtest ran for at least 12 hours (24 > would be even better).
When I've had memory problems, it seemed like it was always shown in tests 5 and 8 from memtest86+. So, now, to expedite the tests, I set it to only run tests 5 and 8. A few hours of those can find problems faster than a couple days of running the full battery of tests. I always run the full set at least once, but my experience and those of people I've seen on Google seems to indicate that on modern systems 5 and 8 are where errors are exposed. YMMV of course. :)