On 03.07.2015, Chris Murphy wrote:
And after that, over the weekend if you can afford to be without the
use of this computer, run memtest86+ as long as you can stand it.
Sometimes it takes days for problems to show up.
Most often, mprime95 is a better alternative and fails within a short
amount of time in case of failing RAM or heat problems:
http://www.mersenne.org/download/
One full hour with each of the three stress-tests (respectively) will usually
suffice.