I have Win 7 Pro and a RAID5 connected to the motherboard. Normally, it works fine. But about once a week, the array gets DOG slow - even during POST boot-up. I just shut down and reboot, usually works. I used to get a BSOD when the array is slow during shutdown, but since a few SSD updates, this part seems to go away. Otherwise the array works great.
Anything I can do? Or this is just the way a cheap RAID 5 works? Can I expect much better from a dedicated-premium RAID 5 NAS ?