May be I am not the expert to answer this question... but per my understanding, there should be no restriction on RMA part return from field and of course we are not able get any part replacement from NV when find this is GPU failure unless you get some spare part on hand to do this service.. Normally, the oversea Sales won't recommend to do this RMA return from field.. or prefer to do the credit offer to his customer instead of card return.Hope I can answer your question.