New computer. Played TF2 for 15 minutes, computer crashed and on boot it said something like PC shutdown because of power supply surge detected. I fixed the problem by playing TF2 at the worst resolution. No more crashes.
Then I wanted to start streaming TF2 and I had to change the resolution back to 1920x1080 in order to stream and of course I got the same crashes. I disabled Asus anti surge in BIOS and the PSU surge crashes are gone but the computer still crashes when streaming TF2. And the crashes looks like this: http://tinypic.com/player.php?v=nef808%3E&s=8#.UxyGcvmS
I have tried both the latest beta Cataclyst drivers and the 13.12 drivers, which I currently run. I have also tried two different Corsair PSUs listed in the specs. I have ran stress test on the CPU, GPU and RAM. Temps was fine and no crashes.
i7 4770K
Z87-K
8GB 1333 MHz
120 GB SSD
500 GB HDD
Asus R9 280X
Corsair VS 550 / Corsair VS 650
Here are some stats the seconds before the computer crashes (Is 11.2V min voltage on the safe side or is that a too high voltage drop?): http://tinypic.com/player.php?v=2gwrp7t%3E&s=8#.Ux40k_mSyHC
Sometimes this happens when I open an mp4 file or when I open a video on Youtube: tinypic.com/player.php?v=2qs032f&s=8#.Ux8k7_mSyHA
By the way, my computer draws around 300 W from the wall when I am streaming TF2.