I was going through a pile of old graphics cards and pulled out a HD Radeon 6950. The card was working fine last time I used it in Germany. However, I hadn't used it since I brought it back from over seas.
Simply put whenever I install the card on any PC it start to boot up by going into a high fan mode. I would describe this as being 90% of the fans maximum speeds. It will stay at those maxed fan speeds and will not boot into windows (or at least wont show up on monitors).
I have tried this card on two separate systems and three separate monitors.
Here are the system specs for the primary testing rig: