So since bf4 install and the r331 driver on my 770 ive had big issues. first the screen would go black, then it would restart by itself, then after a while it restarted but this time the VGA LED was on. I reseated it, it worked, a few days later though. The dame thing happaned this time reseating didn't work, so i moved it down a slot, now it works. But the unexpected reboot and VGA LED just happened in this slot too...i've reseated it and it works now, if im following the pattern, it should do it again soon and not work after reseating, in which case my knowledge goes no further. Can anyone please help? I spent all my savings on my PC and ive only had it a couple of months. thanks guys 
Mobo- M5A99FX PRO R2.0
GPU- GTX770
CPU- FX8350

Mobo- M5A99FX PRO R2.0
GPU- GTX770
CPU- FX8350