just as a caution make sure that your laptop does support RAM more than 4 GB. Else the excess will be of no use.
Presence of free RAM Slot may not always mean possibility of upgrade if the laptop came pre-installed with it's max RAM capacity, just in worst case situation.
Also I assume you have 64 Bit OS as 32 Bit OS shall not see any RAM > 4 GB as well.
BTW I could not see many of images in the post. It somehow opens a blank page.
This laptop supports max 16 GB RAM.
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What I meant is instead of going for 4+2 GB , go for a 4+4 GB Dual channel kit
Dude i don't have enough money to buy another 4 GB. My budget is 2500 INR. And in this budget i can only buy 4GB.
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purchased lenovo G50-70(59-417110) it is with 2gb ram and dos and i introduced windows 8.1 i feels it is bit laggy and moderate i think it is ram issue
so i need to redesign my ram and i need to include another 4gb ram
WHICH RAM IS SUITABLE DDR3 OR DDR3L IF WE INSTALL DDR3 DO I GET ANY PROB
Oh yeah I also got same laptop n yes RAM is less. But I never faced any problem in simple works. Only in gaming I get problem Sometimes. If u don't play games then Upgrade 2GB only.
This Laptop Supports DDR3L (L stands for Low Voltage). So u need to buy RAM which Support 1.35V voltage not 1.5V. If u will buy DDR3 RAM with 1.5V, that won't work in this Laptop.
I am attaching this picture. Buy the RAM with same specification. 2GB or 4GB, it's your choice.