08-27-2015, 01:15 PM
yashar26: You're going to start a fire with that configuration. Why are you coupling a $1000 GPU with a $100 PSU? The 295X2 pulls upwards of 550-575W under compute workloads (though Powertune will do everything it can to try to keep it under 500W.) Even though it's an 850W PSU, it likely doesn't have enough amperage available on the 12V rail to actually supply that much power to the GPU, resulting in system instability.
rico: power supply ratings are for the output side, not the input side. Efficiency is measured by how much input power is required to produce the desired output. A PSU rated at 850W can push 850W; but if it's only 85% efficient, it's going to pull 1000W from the wall to produce those 850W.
rico: power supply ratings are for the output side, not the input side. Efficiency is measured by how much input power is required to produce the desired output. A PSU rated at 850W can push 850W; but if it's only 85% efficient, it's going to pull 1000W from the wall to produce those 850W.