i'm thinking of upgrading from my current 256 to 512 ram.
but i'm not sure how to go about it.
1. how to check the compatibility issue? how to know what kind of RAM is for my laptop?
2. currently mine is 2 x 128, even though i'm opting for 512 ram, but can i get a 512ram in one of the slot while another is 128 , which make up 640ram ?
3. what's the price range ??
i know tat i can easily bring my laptop to the vendor, but before that i hope to know more abt it before the they can chop me ...