ok....i guess i got it and could solve my problem - it looks like i had a thermal problem. yesterday i was able to play for about 2h straight without any problems (underclocked, case open for better temperature). today i played about 1,5h with normal clocking (max. 2010MHz) and case open (better temp).
Yesterday i had about 59° CPU and 47° GPU Temp - today i got a little bit higher CPU (+3°) and even the same or lower GPU (-2°) Temp.
I put the lower front fan to the top but havent tested a closed case now. i guess the biggest temp problem i have is that my cooling tower of the CPU is right above the GPU processor (1,5cm) and the sensors are somewhere else. At the same time CPU temp seemed to be ok - but CPU Package temp was really high sometimes (~77-80°). Overall said - my Case maybe is just too small to put CPU and GPU that close and on the other hand i couldnt produce the needed airflow.
I really hope that this is the solution. What i am gonna do next? Told my wife i want a CPU AIO Cooling for christmas......so i get way more space above the GPU and more room for airflow and heat "exhaling".
Thanks to everyone who tried to help me and came up with possible solutions and i hope i don't have to come back with the same problem
Yesterday i had about 59° CPU and 47° GPU Temp - today i got a little bit higher CPU (+3°) and even the same or lower GPU (-2°) Temp.
I put the lower front fan to the top but havent tested a closed case now. i guess the biggest temp problem i have is that my cooling tower of the CPU is right above the GPU processor (1,5cm) and the sensors are somewhere else. At the same time CPU temp seemed to be ok - but CPU Package temp was really high sometimes (~77-80°). Overall said - my Case maybe is just too small to put CPU and GPU that close and on the other hand i couldnt produce the needed airflow.
I really hope that this is the solution. What i am gonna do next? Told my wife i want a CPU AIO Cooling for christmas......so i get way more space above the GPU and more room for airflow and heat "exhaling".
Thanks to everyone who tried to help me and came up with possible solutions and i hope i don't have to come back with the same problem