Edit: I have another idea (i write a third post because the other is long enough): But i have no idea, how good it is:
Ok, look, there are these little bars left and right from the keyboard and left and right from the touchpad (they are moveable too).
You could take them off temporary (if laptop is in desktop-usage). As i said above: Connect the heatpipes with thermalpads with the metal-cover which sits on top of the hardware. But try to (somehow) connect the heatpipes with the metal-cover, which is directly on the spots, where these bars are.
Then you could add some magnets somewhere below the metal-cover (just somewhere, where there is free space to glue magnets on the metal cover). So now, when the laptop is build together, you could take these bars off and put a heatsink on the place, where the bars were.
My Idea is now: Buy any heatsink, which fits good from the dimensions. Drill some hole in the heatsink and glue some magnets in it (at the same spots, where the other magnets sits, which are mounted below the metal-cover).
Now buy some of these reusable graphit-thermal pads from thermalgrizzly. Then put it on the free space, were the bars were and put the heatsinks on top of it and hope, that the magnets make enough “mounting pressure”, to connect the heatsink with the metal-cover. And hope, that this little metal-sheet does not bend, otherwise this graphit-thermalpad maybe has no good contact.
If wanted: At some fans. If you have to go just take off the heatsink (because there are only magnets) and the graphit-pad (its reusable).
So for now: This is my beast idea. But it is an idea. Maybe this is a total fail. But in my opinion this is the best “give a try” which lets the laptop be a laptop and untouched (no drilling holes in laptop and only parts, which you can take of in a second).
Edit2: I heard of a thermalpad, which have mindblowing heat conductive capabilities, BUT only in the x and y axis (so it does only spread heat. A normal thermal pad should guide the heat on the z-axis.). In this case this could be very helpfull to spread the heat over the whole area, where these bars sits. Because the hestpipes are only ~ 1cm wide or so.
So maybe you could do this: Attach thermal pad on top of the heatpipes. But they now dont have to touch the metal-cover. Put some of these special-thermal pads between. But they are very thin, so you would have to glue them with thermal-glue on the metal-cover. Then it sits between the thermal pad and the metal-cover. Maybe it spreads the heat a bit, maybe the thermal-glue destroys the effect.
So hope it spreads the heat better.
I mean this “special” pads (he is applying wrong because he thinks it has high z-axis heat transfer. Read also the comment from jpeg6 in this video):
Edit 3: For sure, you have these bars left and right from the keyboard only, if you are not using the 10-key from the keyboad. Otherwise there is no bar.
Edit 4: Instead of using thermal pads, you could use thermal putty. Watch this for this topic: Upsiren UX Pro Thermal Putty - YouTube