I'll grab some ziploc plastic bags and freeze the card for a few hours.
(I'll try the "hot" method first...heatsink will get very hot just having the card on, but it will load windows (I won't risk 3D)..if that doesn't help, then in the freezer it goes
BTW, the fan has apparently been dead for many months (maybe more than a year). I never caught it because I have a huge 120mm sunon case fan blowing a _lot_ of air directly on the card and motherboard (that did a great job).. I have a new copper Ti cooler on order.