I recently built a new high end PC and tried to hook it up to my Samsung 65 8550 4k tv. I keep getting no signal message. I tried 1.4 & 2.0 cables. I tried several hdmi ports on the tv but I know the 2nd HDMI is labeled DV-I so I kept it with that and renamed it to PC as well. I have another lower brand PC hooked up to it and it displays well but only in 1080p. I got it to work but only with my other Sony XBR6 tv which only outputs in 1080p. Only together did the Samsung display in 4k under display properties and with both displays extended. ANy other configuration, I got no signal.
Here are specs of new PC..
4790k
Asus z97 Hero vii
2x8Gb 2133 ram
2xgtx 970 sc @ SLi
Samsung evo SSD 1tbx2
Corsair 1200Axi
Windows 8.1 Pro

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