I have the same issue. The CPU fan will not throttle up when the CPU gets warm. I can manually adjust it from the bios, but.. shouldn't the fan increase speed when the CPU get warmer? I also updated to the latest bios. I have not updated the firmware yet. would this be the issue? should I go back to v3.88. could this be the issue? Is there a setting in the BIOS to turn that feature on?
Bios 3.9
E5-1650 v1 3.2ghz
Win 10 Pro
GTX970 GPU