I think he typoed and meant "chips". Assuming jafer did ...
I doubt if the equipment exists outside of a motherboard plant or the companies that make and sell the equipment to the motherboard manufacturers. And then, high density SMT soldering requires very specialized (and expensive) equipment.
And I doubt if the motherboard manufacturers bother to try to repair a motherboard that fails testing. Basic rule of manufacturing - cost of manufacturing an item is about 50% of wholesale cost cost out the factory door.
That means that a motherboard that you buy for $100 costs less than $50 to manufacture. It's not economically worth repairing.