well thank you for your answer...
one last question :
how do i see the difference between 4 GB that i had once and 16 gb that i have now ?
i mean, windows had enough of 4 GB to run smoothly games, win itself and multitasking wasnt that bad, now when i got 16 im not really sure what ive done

..*stupid*\
btw thats the reason i wanted to squeeze the max of these ram stick for ,maybe, get some difference and feel it