650W should be enough if your computer isn't filled with loads of extra HDD etc. It might have been the fail-safe in the power supply the switched off because of the dust. Try the game again and see if your computer shuts off. And make sure the extra power cable is connected to your GPU.
150-200 ms with spikes up to 2500 ms every 30 seconds with a LOAD of rubberbanding. "Server Not Responding" all the time anywhere from 30 to 400 seconds. I want to play this game so badly, but right now it is unbearable. PS. This is the only game I play that I have a problem with. All other games work fine, so the problem…