Upgrade Laptop RAM

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Hi
I wanna buy a new laptop ( ROG GL502VM - i7 7700HQ and 12GB RAM) and it has
Only a single RAM slot: 8 GB module soldered on-board. and I heard that if 2 ram has same serial number work better together ... in this case I can't find another soldered on-board RAM with same serial RAM so I have to put a DIMM RAM that doesn't have a same serial number :??:
so what can I do? I want to upgrade it to 16GB.
 

Bad Sector

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Aug 31, 2013
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yeah i know , they doesn't have a same serial number , it doesn't make any problem?
 

Bad Sector

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Aug 31, 2013
78
0
18,530


thanks for your replay but i couldn't find this configuration in my country yet.