Motherboard MSI X-power 2, x79 chipset.
I have RAID from 4 drivers, 2tb RAID 0 (2xWD1001FALS) and 4tb RAID 0(2xWD2002FAEX).
With the last RST drivers RSTe_Win7_8_220.127.116.119_PV.exe, at reset from an operating system, hard disks stops and it is necessary to wait for their promotion.
This only occurs when the controler in the RAID mode, with non-raid mode - all ok, at reset from system hdd don't stop.
With RST driver (18.104.22.1682) from Windows 8, it isn't observed..
Bug or what?.
As you are using a third party motherboard, I recommend you to post your inquires at the chipset support forums, they will be able to assist you further.