Displays not getting signal

Aug 21, 2018
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(What I have tried.)
Pc turning on no problem but
3 monitors not showing anything.
I tried:
*Unpluging Gpu and puting back in.
*Removing ram and motherboard gave beeping. I guess that motherboard is fine.
*I tried Gpu in my old pc and it was working fine.so Gpu is fine...
*I tried 3 different ports on my gpu to see if that help. And no it didnt.
*I took out the motherboard batery out to make it reset. That didnt help.
*I have tried to unplug the power Nd hold the off button for 1 minute to clear the power. That didnt help.


(What happened)
I Guess its my processor but not sure.
The wierd thing is that pc was working fine I was watching youtube videos. Then i went afk while there was nothing turned on. Come back after 20 minutes the pc was frozen so i forced it off(hold off button 5 seconds) after that the monitors never turn on again. Also my pc inside was build by a professional and I havent touch much inside. So all the cables are sitting the same wasy.

CPU: I7-7820x
GPU: GTX1080ti
RAM :8gb x4
OS: Windows10
Mobo: ASUS® ROG STRIX X299-E GAMING
Pc: about 5 month old.

If anybody got any solutions please let me know.
Thanks Deniel.