noob question regarding macbook logicboard

hi, i am pretty new to this stuff and i have few doubts regarding repairs.
first one is how to check that which ASD will work with which board?
and second one is are capacitors necessary in macbook logic boards or will it work fine without them, for instance i have seen jessa knocking of caps from iphones and they still work, do same applies for macbooks as well?
thanks
 
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