Just got my brand new pc in the mail today and when i plugged it in and started it up, my monitor just says No Signal and goes to sleep. I tried both DVI ports and then even tried the hdmi into my TV to see if it was the monitor or something. Any ideas what this could be? I have an R9 380 4gb, Corsair CX600M, AMD FX 8350 4.0 ghz, and Gigabyte GA-970A-DS3P AM3+ motherboard. Really frustrating and never have built a pc before so i dont even know where to begin as far as what i should be looking for or what to check. It turns on just fine, fans start up and i can hear what i presume to be the hard drive or something start up when i hit the power button. Any help is greatly appreciated.