HI,

I'm planning to upgrade my Dell Inspiron N5010 RAM from current 3GB(2+1) to 6 GB(2+4).

I heard that some Dell Inspiron Laptops require same RAM to be present in both slots so that the O.S can detect the installed RAM, else only one slot will be detected( ex: 4GB RAM (Usable 3GB)).

So, can I go ahead with having a 2GB RAM in one slot and 4GB RAM in another?

So, can you suggest me any best brand(verified by Dell) to purchase the RAM and also the recommended frequency it should be supporting?

Many thanks in advance!!!