As title says, there is no option to turn overdrive off in AMD Radeon settings since Crimson update. It applies our overclock everytime when computer boot up and don't apply voltage increase like in MSI Afterburner, so computer keep giving black screen at startup. All we need is such a small check box like it was in Cataclyst Control Center. Because, it is ALWAYS ENABLED in new Crimson drivers. Tested on AMD Radeon 16.2 driver.