Sometimes while playing AC4 or FC3 i get a black screen, but the audio stays running for a couple seconds
Windows 7 Home Premium 64-bit SP1
Intel Core i5 3570K @ 3.40GHz
MSI Z77A-GD65
Gskill Ripjaws 4x2 DDR3 1600Mhz
MSI 7870 Hawk 1100Mhz (stock)
WD Blue 1000GB
Enermax NAXN 750w 80+ Bronze Modular
Also completely new problem, the screen freezes and make a buzzing noise but that happens rarely