This is a rather strange thing. Recently my last 6850 ended up dying out when the heatsink began to chug and churn really loudly. The next few days it would slowly wind down before dying completely.
I ended up deciding to just replace it with a new 7950 for the power and I have been having a great time with it!
Except every now and again, the heatsink will not start up on boot. And I did not realize this was an issue until the computer would shut down because of it overheating. Usually when this happens I can just start and restart until it finally does spin.
I have searched around and have not really found much of an answer for this one. Any help would be appreciated!
AFTER A LONG SERIES of hilarious ( not really ) incidents, I have managed to pin the problem down with just a bad DoD fan. The good people who I bought the card from were more than happy to exchange it for a new one when I brought it in. They had no explanation why it was dead when they tested it either.