my point is whether it is fatigued or it stopped working as a result of a large enough electrical impedance that current can't pass through or god knows some other reason. You would have replaced the motherboard either way because of 10 other motherboard/component failures. in which case, buy a new laptop.

thinkpads are rapidly depreciative. They approximately depreciate linearly compared to a theoretically and practically non-depreciative product; The longer they are used (or just held in stock), the cheaper they become. I've found used thinkpads that are worth the same amount for a same spec'd framework motherboards. until integrated circuits become cheaper your just purchasing a more expensive thinkpad that's easier to understand (from an upgrade perspective) for the user.