[TheRandomGuy7]

First of all, I didn't quite know where to post this, as I have pretty much no idea what is causing the problem.

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, thanks.

 

[VirGnarus]

Have you checked the CPU temp as well? Also, please provide us the information instructed here. Thanks. A couple of hardware tests to also perform over a few nights:

RAM: Memtest86+ - 7+ passes
CPU: Prime95 - Torture Test; Blend; overnight (9+ hours)
Drives: Seatools - All basic tests aside from the Fix all, Long generic or the advanced ones.

All of these are included in the UBCD if you prefer a Live CD environment (which is the best environment to test hardware on). Note that Prime95 currently does not work on the latest version of UBCD due to a bug. Also, please provide us temps/voltages using HWInfo with Sensors only option checked. Log two 30-minute instances: one for idle, and one for high load. If you can get the system to crash during high load logging, that's even better. Last, make sure that when running Prime95 that you check CPU temps during first 30minutes or so to see if temps are stable. Prime95 runs very hot so be sure your cooling can handle it before letting it run extensively.