First build, did everything as was described in guides, so I thought. Pluged in my PSU and every LED turned on, hit the power button on my front panel and every fan turned on and additional lights turned on. I plugged in my display and it will not recieve a signal. I tried every different connection I could concieve (hdmi>m/b hdmi>gpu displayport>m/b displayport>gpu usb>m/b) nothing helped. what could the problem be, and if that is too big of a question to answer, how can i troubleshoot? thanks