Just an fyi for anyone wanting to use s3 sleep feature. Cant get it to work. It will sleep but nic does not stay alive to enable wake up. I even installed an intel nic into pcie and still could not wake it up. After half a day of frustration
After half a day of frustration, returned it and got refurbished Supermicro MBD-X7SPA-HF for a little over $100. No s3 problems with latest rc.