My Toxic 5850 has started making excess noise as if the fan bearings have about had it. I bought it used so an RMA is out of the question, plus the card runs faultlessly otherwise wioth not so much as a cap whine. Does anyone know of an after-market cooler that would fit the Toxic Edition 5850 ? I've already had the fan apart and put some oil in the bearing and although it helped for about 12 hours, the noise is back again.