Graphics card fault

wolfdra

Honorable
Dec 25, 2013
5
0
10,510
Are these symptoms of a damaged graphics card?

1. When it reaches ~75°c my whole PC starts stuttering even out of game until the card cools down and I don't know if this is relevant but at the same time I loose connection to the internet but it still says I'm connected.

2. Motherboard splash screen shows up then it doesn't show the desktop but instead random coloured lines across the top

3. Random blue screens, I've only had 2 since I installed my i7 one was graphics related I'm not sure about the other

PC specs;
i7 4770k
Asus sabertooth z87
Corsair hx1050
Corsair 16gb vengeance blue 1600mhz
Samsung evo basic 120gb ssd
Evga gtx 770 2gb superclocked