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Topic: Running an S7 on two PSUs (120V Not 240V!) - page 2. (Read 1297 times)

sr. member
Activity: 429
Merit: 250
January 12, 2016, 03:37:03 PM
#5
Should be fine, yeah. 120V 15A, would give you 1440W of AC input (assuming 80% continuous draw as safety margin). If the circuit is running only that miner, this gives you something like 1300W of DC output, which an S7 would only request what, 1000 to 1200 depending on batch/model and clock setting?

I'd put the 1000W across two blades, and the 750W across the third blade and controller. That'd keep both of them at about half power for good efficiency.

The only thing else that runs in the garage is the garage door opener, gas heat, and the water heater. The water heater is my biggest concern and I will investigate tonight when I get home what kind of power it eats up. If its too much I may be looking at another room in the house as it looks like I'm approaching max wattage. You're answer helps alot though sidehack, thanks.

Gas heat shouldn't be an issue. is your water heater gas or electric? and check the outlet that the garage door is plugged into and turn that 15 amp off in your box to see if garage door still works.

You might also have a couple 15 amp breakers that are on the same circuit. I have 2-3 15 amp breakers that run on the same circuit to prevent overload. Use that cheap outlet checker that lights up. You can get them at home depot for cheaper as well.
sr. member
Activity: 429
Merit: 250
January 12, 2016, 03:33:05 PM
#4
Should be fine, yeah. 120V 15A, would give you 1440W of AC input (assuming 80% continuous draw as safety margin). If the circuit is running only that miner, this gives you something like 1300W of DC output, which an S7 would only request what, 1000 to 1200 depending on batch/model and clock setting?

I'd put the 1000W across two blades, and the 750W across the third blade and controller. That'd keep both of them at about half power for good efficiency.

Just as sidehack said, just make sure that miner is the only thing running on that circuit. I would go to your box and turn it off and on checking outlets to verify this using something like this http://www.amazon.com/Power-Gear-50542-3-Wire-Receptacle/dp/B002LZTKIA

If you find any other outlets wired to the same circuit I would mark them so you don't forget and plug a power tool, etc. into the outlet
full member
Activity: 146
Merit: 100
January 12, 2016, 03:32:30 PM
#3
Should be fine, yeah. 120V 15A, would give you 1440W of AC input (assuming 80% continuous draw as safety margin). If the circuit is running only that miner, this gives you something like 1300W of DC output, which an S7 would only request what, 1000 to 1200 depending on batch/model and clock setting?

I'd put the 1000W across two blades, and the 750W across the third blade and controller. That'd keep both of them at about half power for good efficiency.

The only thing else that runs in the garage is the garage door opener, gas heat, and the water heater. The water heater is my biggest concern and I will investigate tonight when I get home what kind of power it eats up. If its too much I may be looking at another room in the house as it looks like I'm approaching max wattage. You're answer helps alot though sidehack, thanks.
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
January 12, 2016, 03:19:00 PM
#2
Should be fine, yeah. 120V 15A, would give you 1440W of AC input (assuming 80% continuous draw as safety margin). If the circuit is running only that miner, this gives you something like 1300W of DC output, which an S7 would only request what, 1000 to 1200 depending on batch/model and clock setting?

I'd put the 1000W across two blades, and the 750W across the third blade and controller. That'd keep both of them at about half power for good efficiency.
full member
Activity: 146
Merit: 100
January 12, 2016, 03:15:20 PM
#1
Hey guys so due to slow BTCTransfer from Coinbase I'm going to miss out on the Avalon 6 I planned on getting for home mining. Now I'm considering going back to an S7. The only problem I have is that I have no 240v connection in my home and have to run off of 120V.

I have a Corsair 1000H PSU http://www.corsair.com/en-us/rm-series-rm1000-80-plus-gold-certified-power-supplyI planned on running 2 boards from

and a 750Hi http://www.corsair.com/en-us/rmi-series-rm750i-750-watt-80-plus-gold-certified-fully-modular-psu

to run the other board and controller on. Will this be alright on my 120V 15A connection in my garage? I dont have a problem underclocking a little to make it work, just want to make sure its SAFE and doesnt burn my house down. Any input would be greatly appreciated. Cheers.
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