Dsr...In its current state its rubbish, I've tested the hell out of it and still get random black screens every now and then.
Eat - Sleep - Overclock - Repeat
Its random, like I said I've tested it a lot and it's done it with pretty much every game except for a select few.
Yeah I made sure to test it, if you're running @120Hz like I am make sure you turn dsr off or drop down to 60Hz, dsr made my 120Hz gaming experience pretty shit with all the black screens and crashes, even got a full on lock up while playing COD AW.
Eat - Sleep - Overclock - Repeat