Missing critical hardware requirement for FreeNAS 9.3 in the documentation
After going through this issue here: https://bugs.freenas.org/issues/7130 it has become clear that FreeNAS is dropping some hardware support.
However, there is no indication of this in the current 9.3 documentation I found: http://doc.freenas.org/9.3/freenas_intro.html#hardware-recommendations
The problem is that FreeNAS 9.3 REQUIRES an EFI BIOS that is required to boot from a GPT partition which is the new standard, however that isn't mentioned anywhere in the documentation and causes issues when you try to install it on hardware that is affected.
In short what I can tell of the top of my head, current hardware that isn't supported is All socket 775 based machines, (Core 1 and Core 2 series) as all I have seen were BIOS based.
99% of the Socket 1366 lineup, as all the BIOSes weren't EFI based.
And some of the first gen Core i5 lineup as not all manufacturers did a shift to EFI.