I have tried Unigine on 2nd page of usasma's thread. Seems like the stress test is only included in paid version. The free version only provide normal tests like benchmarking. Anyway, I have tried this test for several times. Most of time it finished without problems. Only once, the whole computer crashed and frozen like what happened when I played 3D games for a while.
I will try running a stress test tonight cuz it seems that it needs a couple of hours to finish.
About 11.8, the installer doesn't even allow me to install display driver
. So I guess it doesn't support 7850 then.
I don't think overheating would be the cause. I noticed the GPU temperature was around 50 every time before crash.
I also found out, when I use driver 12.3, I can only play games for about 20min - 1 hr till computer crashes. But when I use 12.4, it can hold for a couple of hours. However, it still got frozen and crashed in the end when I almost thought problem gone. Does this mean it's probably the driver's problem? Maybe it can be solved in future version? If it is, I might end up returning the VGAs. don't wanna wait lol