it's my first post here. Yesterday i've heard about the Downclocking issues for the first time. Got my R9 390 2 weeks ago. Switched from nVidia.
Yesterday i've installed the latest release of Crimson (Crimson Edition 16.3.2). So i have a Sapphire R9 390 Nitro (8GB).
My Problem is the Function Power Efficiency is not showing up in the Global Settings.
Do you guys have any idea what's wrong? I've read the 200 Series are excluded, but mine should be not, or isn't it?