Before. The same as it's done.
Loose the screws for the heat pipes and the fan.
(Left - CPU, Right - ATi GPU)
CPU
(This model doesn't have integrated graphic card)
Clean the old thermal paste. Don't remove the plastic film.
ATi (It's AMD now) GPU
Put new thermal paste on CPU and GPU, clean the fan (fold it and clean it).
Put them back together.
Temperature goes from 80C back to 60C when idle.
Replace memory chips
Should use 204-Pin DDR3 SO-DIMM DDR3 1066 (PC3 8500) Laptop Memory.
Bye bye Kingston. Hello Corsair.
Stable
No problem