This is superb, something like the modern equivalent of the engineer's slap that one could use with old spinning drives that would no longer spin up.
I found that if I manipulated the axle of the read-write-head arm where it came out through the bottom of the drive, it would "unstick" the head from the surface of the disk, and the thing would boot! I imagine there was some kind of lubricant in there that would congeal when the machine was off for a certain amount of time.
So I left the drive slot cover off, and "fingering" the drive would get it to start reliably for a number of years after that.
I took pieces of wood, and a clamp and applied pressure there and it worked.
The same pressure is applied if you use washers on the heatsink clamp - I did that and it's been running fine for months.
The solder joints on the GPU get brittle under the stress of heat and compressing it restores the connection. Pressure or re-flowing is really just a band-aid, the real fix is to re-ball the GPU but that gets expensive.
Never actually had to escalate to reflowing the BGA mount underneath the GPU but recall tutorials of how to do that in a consumer oven.. thank goodness I never tried that one at home.
Tech is already pretty reliable in my experience (At least the cheap stuff that isn't as high power and doesn't thermal cycle as much I guess), but getting rid of solder as a failure mode and making chips swappable would be so cool.
If they could somehow make production grade Z axis tape we could just tape the parts on with a 3d printed frame for position, and anyone could do component level repair without much skill.
And all the chips from dead devices could be reusable, if there was a way to automatically sort them all.