Okay... I wanted adding more RAM to new laptop(is currently 8GB RAM) to make have 16GB... RAM stick inside laptop is HMT41GS6BFR8A-PB I go to the amazon.. I order this: HMT41GS6AFR8A-PB I receive in mail today... And I am make mistake.. I should pay attention... Now what is my option? Can I use into laptop? Or perhaps it may cause unwanted mlafunction of laptop? I do not want risk such thing... Please help.. Perhaps I will return?