Summary: I have four of these and all of them are super stable with Windows and FreeBSD. Besides the stability, this board comes with TWO INTEL (not RealTek!) NICs, which is very convenient for using as a server. Also, this is very energy efficient. Its idle power consumption is only 21W with no additional PCI cards. Anyway, I like this board very much.
Summary: I'm using this in a (home) server class system to run virtual machines and it's got everything I want. The vPro feature is excellent once you get it working. I took off a star because the BIOS appears, to me, to be impossible to ever update. None of the update tools work and I blew out one motherboard already trying to do it. I gave up, but I don't think it needs any BIOS updates, it works perfectly on the current BIOS for my needs.
Summary: This was purchased to replace an older board for a system running VMware vSphere 5.1U1. There is one thing you need to know if you intend to run VMware on this. The default VMware drivers will only detect 1 of the 2 network cards. To get the 2nd one working, following the directions from here: http://virtual-drive.in/2012/11/16/enabling-intel-nic-82579lm-on-intel-s1200bt-under-esxi-5-1/ After following those instructions, everything was working perfectly.
Summary: This motherboard is an excellent choice for people interested in virtualization, remote management options, and a highly stable and compatible system. With the right (non-K) processor, it supports pretty much every virtualization option available out of the box. I don't use a bare metal hypervisor, but this board has wide compatibility with them. The UEFI BIOS is simple to use and mouse-compatible.
Summary: This board is working great for ESXI 5.1. You will need to install a custom VIB to get the 82579LM to work but that only takes about 5 min. Vpro AMT KVM is why i bought this board and it is working great although documentation is lacking. You can configure access by hitting ctrl P at the boot screen. after configuring you will need to download VNC plus or Dameware Mini remote control to access the console. you can also power on/off and reboot.