So my 780 Ti won't work it will crash at stock reference clocks it's an Asus 780 Ti DCU2 had to underclock memory and core Clocks by 10 megahertz because otherwise when it began to run a game or sometimes even just at idle on the desktop it would crash unless I would underclock my Mem and core clocks . all temps are fine my PSU is a 850 EVGA Supernova and I just want to know why I can't overclock my 780 ti
Cpu 4790k 4.6ghz oc
Ddr3 2400mhz (xmp) 2 8gb sticks
780ti asus dcu2
850 evga supernova 80 plus gold
Asus maximus Hero 5
And i do have red tube lights
3 120m corsair case fans
H110i