PSA: New Crimson Driver has a bug that may cap your fan speeds at 20%. Some claim their GPU's are burnt out.
https://www.reddit.com/r/pcmasterra..._bugged_new_drivers_killed_my_gpu_and_others/
AMD says a hotfix is coming Monday.
Be sure to check the temp for your GPU's.
Here's a temporary solution before they get the hotfix out.