I tell my customers who are in the market for a portable computer, whether it be a Notebook, Laptop, etc., buy what you need, because you won't be able to upgrade it later.
Then I tell them to get all the RAM memory that the unit will hold.
The PC controls the speed of the RAM, not vise-versa. So adding faster ram will do you NO GOOD at all.
Get what the PC calls for and nothing more.
www(dot)crucial(dot)com is an excellent source for replacement ram.
Just take their Ram-Scan and they will tell you exactly what you have, what you need and if you want, you can buy it right there. I do this for my customers all the time.
I just want to DITTO, the admonition to NEVER set any portable computer on any soft surface that could block the air intakes. Keep your little PC on a clean, hard surface.
And if you take your Netbook, Notebook, Laptop with you, protect it with a HARD CASE.
A soft case can allow your little PC to be broken in half, in a car accident, etc.
I found a great Hard Case for my Netbook, at Harbor Freight Tools, for less than $20.
Pictures available upon request.
Cheers mates!
Old Timer
PS: I won't give away all my secrets, but on any laptop, I try to absolutely Minimize the work load on both the CPU and the hard drive.....the two largest heat generators.
I shut down every TSR or Service that's not absolutely necessary to run the computer.
Get the program load on the CPU down to a bare minimum. Then get every file off of the HD that's possible and keep it clean and defragmented on at least a weekly basis.
I run a script to load the 'Kernel' into RAM on boot-up, which greatly increases the efficiency of the OS. I keep all my computers, Clean, Lean and Mean!