Having a Lenovo 3000 N200 notebook I decided to upgrade my memory from 2×1 GB to at least 4 GB.
Due to an advice from a friend of mine I almost picked up 2×2 GB memory for like a hundred bucks, and I'd be good to go.
But, after visiting some webshops I came to the conclusion it'd be a better idea to purchase one 4 GB memory and replace only one of the old ones.
So I'd end up with 25% more memory for a little less money.
Is this combination safe? Is there anything I should consider? (I am already running x64, no need to remind me about that.)