I have an old rig with a Geforce 6800GT
It started to give random lockups that could be reduced by lowering memory clock. Then there was artifacting from startup. I could start in safe-mode and see the screen full of artifacts.
I decided to bake it and the artifacts went away, but it still lockups frequently.
The odd thing is that if I remove the drivers it becomes much more stable. But still freezes from time to time.
I'm using it right now writing this.
It started to give random lockups that could be reduced by lowering memory clock. Then there was artifacting from startup. I could start in safe-mode and see the screen full of artifacts.
I decided to bake it and the artifacts went away, but it still lockups frequently.
The odd thing is that if I remove the drivers it becomes much more stable. But still freezes from time to time.
I'm using it right now writing this.