hi all... i'm using the latest Alienware 15 model with 16GB RAM...

now i'm thinking to upgrade my RAM into 32 GB RAM...

my question is:
1) can i simply go to any shop to do the upgrade? (my unit is still under warranty)
2) since the RAM is 16 GB (8+8), so i need to get 16+16 rite?
3) what is the estimated cost? the RAM type is DDR4...


thank you!

anybody here provide the service for the upgrading also can PM me...