My daughter bought a gtx980 from her friends game design business and when she got it it looks like new, not a speck of dust on it. I put it in my pc and my pc and fired up bf1 and it shut down, it did this twice. I updated the drivers although I didn't think I really needed to as I'm running a 970. I managed to play a full 30odd minute round of BF1 operations without an issue. Shut it down to go food shopping and I get a call from son to tell me my pc was hard locked. Could it be my 550w evga psu isn't strong enough or is the card most likely a lemon? Edit....I'm running a stock clocked 2600k, 4x4gb 1866 ram, 1 hdd, 1 2.5"ssd, 1 M2 ssd, a sound card and about 5 fans and an H80i.