So I did a test boot outside the case and everything ran fine, but once I put it into the case and power it up... the motherboard blinks on and off every 5 seconds or so and shows the Q-code 00. The fans spin for a second or two and turn off in unison with the blinking. All the components are new (except for the optical/hard drives) including the motherboard which is an asus z87 hero. The manual says code 00 means "not in use" and I have unplugged several things to see if one thing is the cause, but I haven't found anything yet. Anyone have any ideas?