Hi, not sure if this is the right place to post this, but I am looking to upgrade the memory in my hp dv7-4063ca laptop. My question is how exact do the numbers have to be? I found one that is Neewer 4GB PC3-10600s-09-10-f2 for Samsung M471b5673fh0-ch9 Laptop Memory Ram. The samsung part inclluding the m47 bit is what is written on the existing memory I have. The problem with this is that the only place I could find that was selling this wanted 15-28 buisiness days. That is way too long; would it still work if i got something that was 4gb pc3-10600?