I installed it January, 2013 have it running on the ASROCK AMD FM2A85X EXTREME6 motherboard with 8 GB of memory. The 5.1 version installed the nic drivers without a hitch. With all default settings, direct path I/O was not enabled. SVM, secure virtual machine, is enabled by default in the bios. I have a question into support asking if anything in bios needs to changed to allow this. However this is more of a wish than a need at this point as my VM's are all windows 2008 and windows 2012 servers.