Messquito

Just out of curiosity. You didn't buy the power supply for $231,48.. right?

From footages I see online other people get that much VRAM usage as well on this game at 1440p high (so similar if not identical to your settings) 
 
last but not least VRAM usage is not constant within a game, depending on which level of the game you are and what going on (e.g many NPCs etc) it can raise and drop its not like CoD or any game will have 7GB of VRAM usage through out the entire game because it has as much in the section of the footage above. 
 
And games in general nowadays are using lots of VRAM there is a reason graphics cards have higher capacities than they used to no matter if they are meant to be played at same resolutions (1080p/1440p , e.g GTX 980 couldnt do 4k and was meant for 1080p/1440p but had 4GB of VRAM and a RX 580 wasnt meant to play games at 4k but has 8GB of VRAM) 

That explains why nothing was able to read it then  If this turns into a data recovery problem, feel free to make a new thread about it.