I have been having this problem for the past couple of days were i would leave my computer on for a little then come back to it and then i cant play any games , then i go to my geforce experience and it shows that were my graphics card was it just says unknown like it doesnt detect my graphics card i have a zotac 980 ti amp extreme. then i will turn my computer off then back on again, and i go to the geforce experience and then i says that the 980 ti is detected but that i cant use some of the geforce features like game optimization or shadow play please help. Also my Specs are
CPU i7 6700k
GPU 980ti
Mobo asus z170-pro
Ram EVGA 16GB 3200
PSU rosewill hive 750 series
CPU i7 6700k
GPU 980ti
Mobo asus z170-pro
Ram EVGA 16GB 3200
PSU rosewill hive 750 series