Of the few cards Nvidia actually designs, sure. That just leaves all the other AIB boards.
On the whole, GPU boards aren't too complicated at the component level. Board level repair just isn't usually economical viable most of the time. Buying small numbers of components, diagnosing which components failed, desoldering, soldering new components (Only to see if that fixes the issue). If the card fails within warranty period it just needs to go back to the manufacturer. Once it is out of warranty, you are looking at several hundred dollars for repair (and it will have depreciated), which is only worthwhile on cards valued well above that. Then you run the risk of the repair failing...