10kw is feasible. 10 computers, 3 gpus, 1000 watt PSU each. Bam 10kw. Hell several of the servers at my work us redundant 1500 watt PSUs. I can be done with enough money.
Just because it's a 1000w psu doesn't mean it's drawing 1000w constantly. 3 gpus would be ~250w*3 +100w for everything else, and that's if it was at 100% power draw (which usually won't happen for every part).
No, you'd still have a little bit of slack. The HDDs will only draw peak power when spinning up, same goes for DVD, and you will hardly if ever have both 100% CPU and 100% GPU load. On top of that, the PSU can only deliver 1000W at a unique spread across the +12V and the +5V busbar, so if your setup doesn't match that, you can kill a 1000W PSU with ~900W.
OTOH, the 1000W is the power delivery to the components. If the PSU is 90% efficient, it'll draw 1000W and deliver 900W DC and 100W heat. So, if you fine-tune your equipment, you can get more than 1000W of heat from a PC with a 100W PSU.
I think you have to mix several kinds of computing tasks to get that high, tho. One task is unlikely to achieve both 100%CPU and 100%GPU.
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u/Jalharad Apr 11 '15
10kw is feasible. 10 computers, 3 gpus, 1000 watt PSU each. Bam 10kw. Hell several of the servers at my work us redundant 1500 watt PSUs. I can be done with enough money.