I flashed my Sapphire Dual-X 270X 2GB to the latest VBIOS you guys have and according to the notes the Power Limit is now allowed to go to +80% but it seems like I'm still stuck at the default +20%. I've tried AMD CCC, MSI AB and Sapphire TriXX.
http://i.imgur.com/SjJvVXy.jpg
http://www.techpowerup.com/vgabios/166187/sapphire-r9270x-2048-140306.html
http://i.imgur.com/SjJvVXy.jpg
http://www.techpowerup.com/vgabios/166187/sapphire-r9270x-2048-140306.html