Well I did it! I completed the re-pasting on my Alienware 17 R4 successfully! Temperatures are down 15 - 20C!! GPU at 36C and CPU at 40C on idle. 56C CPU Max under load! It used to be 70C! Right now my ambient temperature in my room is a little high. Anyways I was nervous as I was disassembling this beast but I tamed it! I used Arctic Silver 5. I'm surprised Dell didn't really add a good amount of paste. It was dry and not really sufficient. Now as the paste settles it'll perform better. I'm glad I did this! Really helps!
Perfectly!