Basically, when I play games on my PC, after a while it will just crash to a black screen and after around 5 seconds a loop of an infernal buzzing sound will start. This video shows the exact problem:
7870 BF3 Black Screen Problem (while playing) - YouTube
Here are my specs, I built this in December.
Motherboard - Gigabyte Z77-DS3H
Processor - Intel Core i5-3570k
Graphics Card - Sapphire Radeon 7850 OC Edition 2GB
RAM - GSkill Ripjaws 8GB
Power Supply - XFX PRO650W
Now I would assume this is a graphics card problem but I can't be certain. It would certainly look like an overheating problem but I am pretty sure it isn't. There is close to no dust inside the PC, and using GPU-Z I monitor the GPU temperatures, which just before crashes goes no more than 50 degrees C. Usually it is 30-40.
The crashes happen while playing any game as far as I know, but GTA IV causes a crash after just 5 minutes or so, Civ V causes prompt crashes too. Other games like PlanetSide 2 or Mount and Blade (if you've heard of that) I can play for hours before a crash.
So can anyone help me with any solutions or pinpoint what is causing the problems please?
Any help is greatly appreciated as this is really annoying me, thanks.