A point overlooked here is, with only 1 fan running for 2 weeks you can not have done the card much good ! (I did not realise it was brand new)
I would suggest You tell them you herd a noise and found the fan blade in the bottom of the case ! I don't think anyone will be impressed if you say you had not checked the temps or noticed the fan jammed up when You installed the card.
Good luck, obviously a manufacturing defect as I would think it pretty hard to brake a blade off a new fan....not the case for an old dried out fan !
I would suggest You tell them you herd a noise and found the fan blade in the bottom of the case ! I don't think anyone will be impressed if you say you had not checked the temps or noticed the fan jammed up when You installed the card.
Good luck, obviously a manufacturing defect as I would think it pretty hard to brake a blade off a new fan....not the case for an old dried out fan !