Quote from: Optimizer on June 24, 2016, 09:03:40 PM

Quote from: E on June 24, 2016, 07:18:40 PM

208V vs 240V efficiency numbers aren't commonly published, but the difference is likely to be less than 0.5% or so.

For example, an unspecified HP PSU measured in 2007:

BTW I'm making my measurements with a calibrated Xitron 2503AH (http://www.xitrontech.com/products/general-purpose-power-analyzers/#2503ah) with an external 500A precision shunt for the DC current.

Nice. I am jealous! We may rely on your for accuracy.

Let me know what numbers you find.

@Philipma, be careful when testing to 2500. I have not tested these boards beyond 2kW for an extended period of time. It should be safe, but try not to exceed 130C anywhere on the board.

-Optim
[/quote]

no worries my tests will use 1 miner for each psu which will pull about 1200-1500 watts at the wall

I just have the

dps1600 1 with your board

dps2000 2 in a j4bberwock 4k board

dps2500 1 not set up waiting for your second board.

basically any of the above will only run 1 s-9

I will over clock and under clock. and take heat measurements plus give my pdu amp readings, but I do not think I will ever exceed 1500 watts at the wall on any of the above psu's