I am thinking about upgrading the ram on my laptop. Right now it only has 256 and I can upgrade it to 512. It is a dell c600for people wondering. So my question is how can I tell if I have one stick of 256 in there now or 2 sticks of 128? Also if I have only one stick of 256 is there a problem with just adding another one or should they both be matching? If someone could link me to what I need that would be great. Also I know it says max of 512 of ram but if anyone has had personal experiences with more working let me know also. Thank you.
