Hello everyone if I am posting this in the wrong spot I am sorry. I have a dell Inspiron N7110 laptop it came with a 1tb 5400 rpm Hard drive. However I would like to change it out with a 7200rpm hard drive. My question is do you have to use a dell 7200 rpm hard drive for the computer. Or can I just buy one from somewhere else as long as it is compatible? any info about this would be great appreciated thank you in advance.