AMD now offers new version 15.11.1 Crimson reference hotfix drivers for AMD graphic cards. These have a bunch of changes and fixes, and importantly, address the problems where fan speeds were impeded (thanks HARDOCP). Here's word on what's changed:

Resolved Issues with AMD Radeon Software Crimson Edition 15.11.1 Update

• [82050] Star Wars™: Battlefront - Snow flickers in a few locations in the game
• [82240] Star Wars™: Battlefront - Sky rendering may be broken in some game locations
• [82645] Fallout 4 - The compass may flicker during gameplay on AMD Radeon R9 390 series products. We continue to investigate the issue with AMD Radeon R9 290 and AMD Radeon R9 295X2 series products
• [82667] Star Wars™: Battlefront - Shadowy textures are visible around hills/structures/caves
• [81890] Just Cause 3 - Texture corruption may be experienced during gameplay
• [54874] Call of Duty: Black Ops 3 - Poor AMD Crossfire™ performance may be experienced
• [82338] The driver installation may fail while installing the ACP component
• [82426] The font size in Chinese language installations may be too small
• [82438] The label range values in some AMD Freesync™ installations may be incorrect
• [82536] The Radeon Settings dropbox does not close when it is clicked on a second time
• [82603] The AMD Overdrive™ fan settings is always set to ON after first edit on reboot
• [82586] Language shows up as Chinese Simplified when Chinese Traditional is selected in Windows® 7
• [82656] Radeon Settings crashes on the Display tab when cloning a display via HDMI on some notebooks
• [82671] Overdrive™ fan speed is reset to Manual on exiting from a 3D game or application
• [82766] Radeon Settings does not get upgraded in some install scenarios
• [82691] AMD Overdrive™ cannot revert to default settings in some situations