First of all check if your monitor overheating. Becouse of new videocard brightness, contrast and saturation setings my monitor starts overheating and drop signal from videocard to prevent damages. Just try to adjust monitor brightness settings to lower values.
(If you get two monitors and one of them droping signal and another don't, than you have problems with monitor, but if two of yours monitors drops signal, then you got problems with videocard).
Hello, thank you for your reply, now this issue is solved, it needed more I
guess. I upgraded my power supply 650watts to 1000 watts, and now it works
Glad you solved your problem. Just little update. My problem apears again now with two of my monitors (they both droping signal at the same time). That was really scary until i noticed that my my 8 pin cable had bad connection with power supply (750W). I just reconnected it and still that problem doesn't apear again (which is surprising because problem has appeared every 1-2 hours!)
Do you have any UPS in between power line?
This can happen when some heavy spike is there in main power, heavy loads
like air conditioner, washing machine ( in short which got heavy motor),
every time thease load cuts in or cuts out spike can be generated. This can
be reason of your problem.
So the best answer I can help you with is it depends on the card and the quality of the parts that are on it and how it is over clocked. I have a XFX card and not happy with it will not be buying another one. So depending on what your card is you will have to play with the settings and test.
I had the same problem. I discovered that it was because of the monitor i had, it is seen that the drivers fail a bit when using old monitors or adapters (in my case from hdmi to vga)