Anyone know a solution?

After a couple hours of use the same thing happens again and again. Buzzing and freezing. The freezing of the screen will happen for the duration of the buzz e.g. Computer Buzzes for 2 seconds screen freezes for 2 seconds, computer stops buzzing for 4secs comp stops buzzing for 4secs etc etc... and i'm not sure why. I end up having to restart my comp every couple hours just to get rid of the buzz but of course it comes back not long after.

I contacted Cyberpower from whom i bought my computer from and they said it could be a sound driver issue. Downloaded latest driver as well as trying windows default yet the issue still occurred.

They then told me to format/reinstall windows 7 so i did... yet the problem still persists...

Anyone have any clues?

Is the sound coming from your speakers or the internal speaker that is connected to the motherboard?
Some internal speakers alert you that the system is overheating. But if the sound is coming from your regular speakers, it could possible be a display driver issue, which could be an indicator of a more serious hardware problem with your graphics card.