Disassembly
Remove those screws and remove the HDD:
Lift off the palm rest:
Lift up the keyboard, pull it back a bit, flip it over like that and then disconnect it from the board:
Gently wedge both sides loose:
Remove that cable from the position:
Remove the bezel (sorry forgot to take pics).
On the CPU (and there is another chip south-east to it, sorry forgot to take pic)
clean off the old thermal paste (with the alcohol) and apply new (Artic Silver 5 is good, others are good too)
you should also clean the heatsink the same way
This is also an opportunity to change the CPU to another one. For example if you had a Core Duo T2400, you can upgrade it to a better processor (higher speed, 64-bit support). A Core 2 Duo T7600 was installed here.
Attach the heatsink and install the screws (also, make sure to install the AC jack as highlighted):
Reinstall that upper bezel:
Do that:
Attach keyboard:
Place keyboard and (sorry, forgot to take pics) reinstall the palmrest and insert screws on the underside:
It lives!
Always stress test ('stress -c 2' and xsensors. below 90C is ok) when replacing cpu paste/heatsink:
