I have been unable to get Apple to commit to a clear statement as to whether the logic boards they are using are simply refurbished or redesigned. I have had people at several levels of Apple make contradictory statements as to the condition of the replacement boards with one even claiming it was a new production with a different setup. Clearly a redesigned board with a new model of GPU would inspire more confidence in the repair but there is no evidence other than a few people claiming so. Searching reveals a lot of people who have had multiple logic board replacements and repeat failures with these supposedly "known good" boards. If anyone knows for sure if the boards are old stock, refurbs or redesigned please comment. Also if you have had the repair please give your experience and if the issue re-emerged with a new board. *I know there is a massive thread about the issue but it's not very current and I have read the handful of responses about this precise question so was hoping to get more eyes on the post and more current updates.