This isn't of me but I get that same buzz sound, my screen goes black, and a few seconds later it goes blue. It only happens when playing Path of Exile. I tried reinstalling the game, updating to the newest video card drivers and I reverted back to drivers that were two months older than that as well. I just finished building this PC a few days ago as well.
Specs are I-5 2500k, 4x2 Gigs of ram, Windows 7, and 700W modular power supply.