Why don't you just run Win7? I have a media server as well, just a PC with 2 HDDs and win7, for more than 3 years now and never had an issue, both HDDs are running very well, they are in AHCI mode due to the OS drive being a SSD. I recently upgraded the RAM to 6 GB but it was running just fine with 4 GB as well. Mobo is Intel with Q45 chipset.After reformat I installed and now running Server 2012 using the Disk Spaces feature. Unfortunately the issue remains.