Hi, I had the same issue today. Everything was working fine except for the front LEDs and the alien head logo on the front was flashing 2x amber 1x white. But absolutely everything else seemed to be working just fine. I shut it down turning power completely off. I waited a few minutes and unplugged power supply from the wall. I waited about 10 minutes and plugged back in, started up again and it completely cleared the issue. I have no idea what caused this to happen in the first place. 
Aurora R13 Blinking Orange Alien Head Power Switch Right Outta the Box. 2 Blinks. HELP!  I need a quick resolution and I AM NOT opening this pc up. They will have to come pick it up before I do that.
Aurora R13, blinking orange AlienHead power switch two blinks