> repair manuals and was pretty repairable

Very interesting, I might consider Asus laptops if repair manuals can be easily found.

Can you point me a direction to find it?

From my experience, Asus does not provide any official repair manuals on the specific laptop site. Googling for model keywords doesn't seem to provide any good sources, aside from the typical YouTube videos but these sometimes misses/skips specific instructions/techniques that are mentioned in official Dell/HP repair guides. Will be glad to finally have reliable sources to get Asus repair manuals.

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> If you have to do this more than once or twice over a ten year lifespan of a laptop, you probably should invest in air cleaning systems.

If you're referring to home/work area air filters I don't think its possible since the mentioned laptops are not mine. Unless you mean there's a heatsink cleaning tool that cleans the exhaust fins without disassembly? I'll gladly consider this tool if it means I don't have to do a disassembly.

Unfortunately (or fortunately?), I'm the go-to repair guy in the family. Not unusual to find the fans spinning at high with clogged exhaust + likely old thermal paste (not sure for thermal pads helped much but I used new ones anywhare while the laptops disassembled anyway).

While typing this, I recalled one of the old Dells that had to have the bottom cover assembly replaced more than once, the plastic part of the bottom cover holding the metal hinge mechanism is absolutely terrible. Thankfully the specific part numbers in the repair manuals made it easy to order replacement parts.