Summary: I had the same problem of intermittent and unexplained restarts. I read somewhere that OCZ recommends a voltage setting of 1.9 volts. This MoBo comes with a default setting of 1.5 Changed it to 1.9 and the problem went away.
Summary: This is a fine MB, the only issue I had is that it doesn't support 8 Gig(4x2G) of 1600 RAM but only 4 Gig(2X2G). Buy the slower 1333 RAM and save some $ and grief. Otherwise this board works great. I would also recommend visiting the Intel site and buying only RAM that is certified.