Do u have a different set of compatible ram, i doubt thats the problem but u can try, or maybe since u have no video output the gpu is dead, maybe some cables are loose, check those things
This happened on my laptop, i waited and it went into repair mode, i waited about 2-3 hours and everything was back to normal on windows 10 aswell, so see if that happens, if not try to get into ur bios and boot it safe mode
Damn sorry to hear that, im not sure if it's dead so wait for others to answer, but i'd say you should not overclock it straight to almost a ghz because temps get too high and the card gets unstable.
I just received 2x8gb 3600mhz cl18 Corsair vengeance rgb ram sticks, and i was planning on getting a Asus Prime x470-Pro and i onpy have a r7 1700 oced at 3.8ghz for my rig. I was wondering if anyone knew if i could down clock my ram to 3200mhz while having cl16 or lower timings instead of cl18? Thanks