Thinkpads Forum

velani wrote:So the heat pipe from GPU which currently does not touch the area of copper HS above where CPU chip would be, near the start of the CPU fat heat pipe, I need to use a Bonding Compound?

Now you have me confused

What you need is to remove the thermal pad from the GPU heatsink. It is about 2mm high, so if you try to out everything back you will see that GPU heatsink is no longer touching the GPU chip area. You will need to add extra pressure from the top so that heatsinks bends a little and touches the chip area. For this you can use pennies. If you put them on top of the heatsink and then put back the chrome bracket (not on images), and then screw the bracket pack, pennies will add this pressure to bend the heatsink so that it connects the chip area.

One think I would suggest is to experiment on a spare heatsink. Just get one from eBay, they should be very cheap now. Otherwise you risk losing your only heatsink and you won't be able to turn your laptop on.

A sucess it is
I used the penny mod method, applied AS5 on both sides of penny, did not use the quarter/dime to add pressure to that steel plate on top but rather bent those tabs to add a little extra pressure to copper plate over GPU/NB chips. Added a fresh coat of AS5 over CPU and her are the temps.

Start up: CPU 52c, GPU 62c, Fan about 3,008RPM
Running 3 online video sites (ABC News/YouTube): CPU 56c, GPU 65c, Fan about 3,049RPM

Thanks to all who took time to help me with tips and suggestions. I truly appreciate it.

Velani

A quick update - for those looking for a good copper GPU shim, it appears that searching "CPU Shim" on eBay returns millions of very good usable results. Those will be useful for those who do not want to bend their heatsinks.