gtx 560 ti 448 core directcu 2
asus xonar dx
wd blue 500gb
2x2gb ram corsair
fps and all are good but very rarely (like 1 time every 10 hours or more) while i game my screen goes black and i have to go to task manager to kill the game process, sometime it even recuperate alone and i can keep playing
what could it be? the psu not giving enough power?
im using the latest nvidia drivier and update even the motherboar driver, also when i changed my system i did a quick format no the complete one (i had windows.old in my system) could be some driver survived and giving me trouble?
FC3 is a very demanding game, 4 GB is not good for a game like it so I guess that might be a main reason in why you are crashing/freezing and forced to kill the process. This game will eat your RAM within 1 hour of playing.
IT HAS NOTHING TO DO WITH YOUR SYSTEM RAM - Don't even think about replacing it. Games use VRAM not RAM, I expect you are using less than 3GB while gaming - task manager will show you.
Black screen sounds like the driver crashing and failing to re-initialise fast enough causing your games to crash. I'm guessing that Asus DCUII is factory OCd? Use EVGA PrecisionX to 'downclock' it back to original nVidia specs and go play some games (albeit at slightly lower frame rates). My bet is that it will no longer crash.
Run Heavan at max settings on a permanent loop for a few hours (while at DCU2 factory shipped clocks) and I imagine it will crash more than once per 10hrs.
If no crashes at NVIDIA STOCK, its time to claim on Asus's loverly 3yr warranty.
P.S Also just saw your extra bit of info in topic, could very well be heat related and thermal throttleing. So time to get GPU-z out and set the temp sensor to show max and update in back ground.
Install MSI afterburner and monitor your temps - I bet they are a little high. down clocking can help but I think your card is not getting enough cool air. My GTX460 did same black screen when it overheated.
It happens because of overheating. I have a GTX 560 ti AMP! OC at 1050mhz, I know the sound, try capping the FPS at 60. Remove the cabinet's PCI slot cover or whatever it is called, the one below your card so the graphics card radiator can pass the heat outside. Install some fan on the cabinet near the graphics card (exhaust)