Hi,
Not sure what brought you use the tool however the links below may be of some help to you.
There are, perhaps, some better, more specialized tools out there for testing the RAM modules on your device. The one I've seen most often referenced is:
Also, the link below is to a tutorial video put together by Corsair for best practices in testing RAM modules using Memtest:
www2.corsair.com/training/how_to_memtest/
(Don't let the name Memtest86 fool you, it now supports up to 2 TB of RAM on X64 CPUs).
Hope this helps and Good Luck, let us know how it goes.
-Richard