I never said 2 sp20's to 1 psu
I said 6 sp20s to your 6 psu's
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that means 1 psu per 1 sp20
with my settings .
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I hope you did not damage your psu's or the cables
I think there was some misunderstanding , i'm not running 1 for 1 i have 2 for 2 , if that makes sense. I just think i had them wired incorrectly and even with what i thought was a spread load something kept going off. But it's been stable for a few hours now.
2 machine using 2 psu's should work if settings are a tiny bit low say 1300gh using 700 watts like klondike_bar mentions.
Honestly, theres no reason to spread 2 PSUs over two units. Because when one PSU trips both units will continue 1/2 working, and thus transferring the controller+fan power draw to the other PSU - which will likely trip that one soon after.
1 unit, 1 power supply. If the PSU trips, your settings are too high. watch the asic stats page, you need to set maximum wattage per loop to <180