How do you test/check RAM that is not installed in your computer?
you have to buy a ram tester http://www.tequipment.net/InnoventionsINN-8668.asp?Source=Google
is just a pass/fail unit with some software.
ram it self will last for years as long as you leave it in the anti static bag or box it was shipped with. it esd that will kill ram fast..so dont walk across carpet while holding them or pet a fuzzy kitten