I just got all the parts in for a new system. With my ASUS Z170 Pro motherboard it cycles the red lights through CPU, then RAM, then gets stuck on VGA - the manual tells me to listen to beeps to get a handle on the issue but there's no beeping. Since the board has its own video card, I yanked the GPU thinking perhaps that is the issue, but still it gets stuck on VGA led. I've tried without GPU, with GPU in another slot, disconnecting/reconnecting all the internal plugs (in case something was loose/missing/wrong slot) but nothing. I'm at my wit's end, and I've seen similar issues where people mail in their motherboards only to be told there's nothing wrong with it. I'm hoping someone can help me in case it's not the motherboard.