01-24-2016, 11:58 PM
I'm not as much of a power expert as others in the forum, but here's my take. Max power for 980s is 165W. Even if you were doing password generation on your CPU or something, assuming max 350W for the rest of the board running at full tilt, I would expect your power supply to have been OK for the task. What's the motherboard and CPU?
I would definitely expect a 1200W PSU to be more than enough. I have 6 970s in a single chassis, and unless I'm running something on the CPU as well, I only pull 1050W from the wall with all GPUs engaged, and only 105W at total idle.
You may want to get a Kill-A-Watt so that you can measure power consumption yourself. I find it helpful to baseline with no load and no GPUs inserted, peg the processor and measure that, install the GPUs and measure GPU-only draw, and then measure draw with both CPU and GPUs pegged.
I would definitely expect a 1200W PSU to be more than enough. I have 6 970s in a single chassis, and unless I'm running something on the CPU as well, I only pull 1050W from the wall with all GPUs engaged, and only 105W at total idle.
You may want to get a Kill-A-Watt so that you can measure power consumption yourself. I find it helpful to baseline with no load and no GPUs inserted, peg the processor and measure that, install the GPUs and measure GPU-only draw, and then measure draw with both CPU and GPUs pegged.
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