Posts: 18 +5
Check you original contribution. You wrongly claimed that:" The CPU is the one notable component that can't be replaced as it's designed as a BGA package that's soldered onto the motherboard. "
So, replacing the motherboard means it'll force you to replace the CPU.
Somehow I also get the feeling you read the whole article....and yet you fail to understand what that means!! Or maybe the word "soldered" is foreign to you....
* the motherboard cannot be replaced - yes, it can
* "what's left that can be replaced?? Ah yes, RAM and the GPU" - not so, I listed many more replaceable parts
* "Ah yes, RAM and the GPU" - not so, GPU can not be replaced
Leaving an old motherboard and replacing the CPU only is something no laptop allows, many good reasons why, Google if you are curious. BTW, I did soldering of electronic components well before you were born, my friend ;>