those are easy and cheap to replace
replyDepends, the SMD caps spread across the board the tiny ones do start to fail and go out of spec over time. they are a right pain to replace and hard to spot one that has gone out of spec to cause the chip to start crashing.
replyCan you not just move the epxensive part (the gpu itself) to a new carrier board in that situation? Also isn't most of the cost of the GPU itself the design of the board, not actually making one, esp if you can move the heat sinks around?
reply"just"
replyBGA Reflow rework is not rocket science, How do you think the PCBA gets assembled in the first place? Its much easier if you dont care about the boards at all and with the huge die sizes on these accelerator chips its worth it to do a board swap
replyNot if you account for labour.
replyCaps also have a rapid aging with temp.
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