Awesome post. I saw that my write cache was disabled and wasn't sure about enabling it. Thanks for posting your experiences and the commands ran to change the states. I was also experiencing the sub 50MB/s speeds prior to enabling write cache and now get over 200MB/s.
GIGABYTE GA-7PESH2 board with onboard sas controller flashed to IT mode with Seagate ST6000NM0034 drives.
Has anyone been able to get the fan control working? If yes, what did you use/do? Currently I am able to monitor cpu/mobo temp with dynamix System temp plugin but fan is not being read even though I have 2 pwm fans plugged in.