green and pink squares on monitor

[RhynOh]

Hello, it started off with me getting a pink screen when exiting a lobby on battlefield 1 and a little flashing of the screen. I turned off the computer and back on and it was fine. I went out for a little and left my computer in sleep mode and came back and it has little green and pink squares when I move the cursor around for about 15 seconds now it is fine again. I'm not sure if its the monitor or my NVidia gtx 660 ti gpu. I am really hoping its just the monitor.

 

[cryoburner]

It may be that part of the graphics card is overheating, or potentially failing. Also if the system is in sleep mode, there will still be some components powered on to a certain degree, and without any fans running in the case, it's possible that certain things could potentially overheat. If you've had the system a while, you might first make sure there isn't just a buildup of dust on the card, or elsewhere in the case, preferably using something like compressed air to remove it. Also, it might be worth powering the system down entirely when you're away for hours, or setting it to hibernate rather than sleep, which also powers down the system, but will be slower to start back up. And of course, if you have the card overclocked, it would probably be best to disable or reduce your overclock and see if that helps.