I just built my first rig 2 months ago and it's worked great until yesterday when it crashed mid dungeon in elder scrolls online. Now it won't play any games. Temp readings look fine, mid 40s to 50s with a h100i cooler, i have 850w for a i5 4670k and gtx 780, so that should be ok. Also, I'm not overclocking. In all the responses I've seen people suggest overheating, but I'm pretty sure it's not that. Pretty stumped here. I reckon I"ll pull it apart and check for dust but I can't imagine there being much in so short a time frame. Anybody got any suggestions?