So, I have had this computer for about a month now, and just a couple days ago I have been getting this problem. When playing a game the display crashes to a screen of vertical lines and after a few seconds the sound stops as well. I have to restart my computer to fix it. I have normally been having this problem about once a day and it is pretty random. Normally when it happens, I am alt tabbing back into a game, but sometimes it has happened where I am just playing normally and it crashes. I have the most updated drivers and overheating is not an issue. I have my CPU overclocked to 4.2ghz and my GPU overclocked as well. I am trying without my GPU overclock but since it happens randomly it is hard to tell whether that is fixing the problem.
I have an idea that the problem is related to either a bad PSU or a bad GPU. I do not think it is because of my CPU or its overclock but I could be wrong.
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I originally posted this is a thread they they have since closed, even though several people were having the same problem and the issue remains unsolved:
"I have an AMD Radeon HD 6700 video card; brand new in a brand new PC and I'm getting these pink screen lock-ups (with vertical dark pink lines over a lighter pink background), not whilst watching You Tube, but frequently in games, very irritating!
It's been doing it a lot in "Rise of Prussia", a graphically undemanding 2D strategy game that I'm currently playing."
Since posting that the screen is now generally a blue-grey, but with the same vertical lines, and does it 2-4 times per 8 hours (a complete lock-up requiring a hard re-boot), it's driving me nuts!
I have an ASUS motherboard as well, and it is also a brand new PC (3 months old).
In the old thread some thought it an Nvidea problem, my and your cards are ATI family so it isn't a graphics card problem it seems.