thank you everyone for answering, greatly appreciated.
The reason I want to do this is because the VAIO is always super hot and the fan always run at top speed, if I would talk with someone over Skype the other person would hear the fan.
For the MSI the fan keeps going on and off each few seconds on idle operation, which is really annoying.
Apparently both devices have these problems commonly, so I'm hoping a really good thermal paste would help.I know for sure it would help the VAIO. I know the VAIO must have some crap thermal paste and most likely not well applied, as for the msi I read it should come with MX-2 but I also believe its not well applied. I've seen videos and pictures of the laptops being taken apart. Also this is general for most laptops, as I've seen it with other laptops as well.
As I read about the AS5, it is capacitive so it might hurt my CPU/GPU if it touches multiple exposed connections nearby them, I would rather avoid that. Using a less thermally conductive but non-capacitive thermal paste would worth it a lot better for me since this is my first time.
The Coolaboratory Liquid Pro hurts aluminum as you said, and as the website also says. My heat sink is copper, but is it safe on the CPU/GPU side? Do they all come with some non-aluminum metal?
@Alex Kelly: How did you apply the thermal paste?