Hello i just wonder if my PSU is enough for my card and rest of spec. Now its stable and i dont have any problem. My score in 3dmark 11 on stock 770/1000 is 5876 if i oc'ed gpu to 900 i have 6846 (this is only gpu score). I stress OCCT gpu on both clock no errors and in line V12 when clock is oc i have 12,46 stock 12,56 it is good?. And one thing i must underclocked my cpu from 3,6Ghz to 3,2Ghz to get it stable before when i have GTX460 1GB it was well soo mayby i change PSU??