Yeah, bake it. It works 100%. I saved a 8800GTX, a 8800GTS 512, and a 8800GT that way. Sold them all, and they still work today. Around 200°C 8-9min, then take out of the owen, dont leave it in. Let it rest till it cools down. Stick it in, and let it rock.
Oh, and pre-heat the owen.