Just a note for any non-techies who are buying these with a view to getting someone else to install them. Don't unpackage the chips when you receive them. Resist the urge to rip open the static safe packaging in order to marvel at your new purchase,

These chips are sensitive to static and handling them without taking suitable precautions could destroy them before they even get installed. There's already enough risk for the installer without being given bad chips to start with.