I have and lenovo z50-70 laptop with windows 8.1 pro with 64 bit op?
Added (1). and the question is that what kind of DDR3 i can add,it has one 4GB 1Rx8 PC3L - 12800S -11 -12 -B4 HMT451S6AFR8A -PB NO AA 1406 DDr3 and i would like to add one more 4gb into empty slot. What kind DDR3 i can buy and use? Should i find exact one? Or can i use difrent?
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