Hey. I just bought this board + 2 of (2 x 4GB) OCZ PC6400 kits. It is working in Ubuntu Linux 64-bit with all 16GB RAM registered and working. Yay, now I can keep even bigger indexes in memory. Bit of a pain to get it to work in Linux. I had to set the SATA controller to AHCI mode. Ethernet is still not working. There appears to be patches to get it to work. The atl1e driver is needed is needed. It is supposed to be included in the 2.6.27 kernel.