How to move chips/components from old motherboard to new bare one?

damian hodges, there is really not a specific component that gets damaged. water damage can affect any part on the board that carries power when it gets submerged. The best thing to do is to properly clean the board with 90%+ isopropyl alcohol and a soft brush (or an ultrasonic cleaner). You need to remove the EMI shields to properly clean it. Then you need to do a visual inspection of the components. Check for missing burned or otherwise damaged looking components. Replace those as well as the battery and the lightning port, then reevaluate.