anyone have a top choice of PSU/recommendations, just read over on the Gridseed post a 30W saving on using a Platinum PSU over the supplied PSU!. Any advice appreciated.
It is a matter of cost vs efficiency. Assuming the miners take 60 watts, using 90 watts to run the miners is a 67% efficient PSU. If you use a 90% efficient PSU (platinum), then it would only take 67 watts. 90% efficient PSU will cost more than a 67% efficient PSU. What is it worth to you to save 23 watts? At 1/2 Kwh/day at 15 cents per kwh, that is $27 per year. A cheap PSU costs $20. A Platinum PSU costs $80.