Some more info, here is the gpu-z log before the system froze, do you guys think it could be the power supply? but the ps i have should be more than sufficient, not sure what those voltage numbers mean.
Date , GPU Core Clock [MHz] , GPU Memory Clock [MHz] , GPU Temperature [°C] , Fan Speed [%] , GPU Load [%] , Fan Speed [RPM] , GPU Temp. #1 [°C] , GPU Temp. #2 [°C] , GPU Temp. #3 [°C] , VDDC [V] , VDDCI [V] , VDDC Current [A] , VDDCI Current [A] , VDDC Phase #1 Temperature [°C] , VDDC Phase #2 Temperature [°C] , VDDC Phase #3 Temperature [°C] , VDDCI Phase #1 Temperature [°C] , VDDCI Phase #2 Temperature [°C] ,
2011-08-19 08:27:14 , 725.0 , 1000.0 , 76.0 , 30 , 99 , 2465 , 76.5 , 80.0 , 80.5 , 1.0500 , 1.1000 , 50.5 , 18.9 , 91 , 92 , 92 , 58 , 60 ,
2011-08-19 08:27:15 , 725.0 , 1000.0 , 76.0 , 30 , 99 , 2458 , 76.5 , 80.5 , 81.0 , 1.0500 , 1.1000 , 49.6 , 18.9 , 91 , 92 , 92 , 58 , 61 ,
2011-08-19 08:27:16 , 725.0 , 1000.0 , 76.0 , 30 , 99 , 2453 , 77.0 , 80.0 , 80.5 , 1.0500 , 1.1000 , 49.6 , 18.9 , 91 , 92 , 92 , 58 , 61 ,
2011-08-19 08:27:17 , 725.0 , 1000.0 , 76.0 , 30 , 99 , 2462 , 76.5 , 80.0 , 80.5 , 1.0500 , 1.1000 , 49.6 , 18.9 , 91 , 92 , 92 , 58 , 61 ,
2011-08-19 08:27:18 , 725.0 , 1000.0 , 77.0 , 30 , 99 , 2452 , 76.5 , 80.0 , 80.5 , 1.0500 , 1.1000 , 49.6 , 18.9 , 91 , 92 , 92 , 58 , 60 ,
2011-08-19 08:27:19 , 725.0 , 1000.0 , 76.0 , 30 , 99 , 2455 , 77.0 , 80.0 , 81.0 , - , - , 0.0 , 0.0 , 0 , 0 , 0 , 0 , 0 ,
2011-08-19 08:27:20 , 0.4 , 3196.9 , -1.0 , 100 , 100 , 0 , 32767.5 , 32767.5 , 32767.5 , - , - , 0.0 , 0.0 , 0 , 0 , 0 , 0 , 0 ,
2011-08-19 08:27:21 , 0.4 , 3196.9 , -1.0 , 100 , 100 , 0 , 32767.5 , 32767.5 , 32767.5 , - , - , 0.0 , 0.0 , 0 , 0 , 0 , 0 , 0 ,
2011-08-19 08:27:27 , 0.4 , 3196.9 , -1.0 , 100 , 100 , 0 , 32767.5 , 32767.5 , 32767.5 , - , - , 0.0 , 0.0 , 0 , 0 , 0 , 0 , 0 ,