I need help with amps and S7...

[VirosaGITS]

You guys have been a huge help. Thanks!

I just talked to my electrician. We are doing (3) outlets each connected to its own 240v/30 amp breaker (I have the space). There is a surge protector being installed on the whole panel (internally). I will go with one of the PDU's shown above that are rated for 30 amp but pushes less. The outlets are right by my panel which works perfect. My plan is to only plug 3 miners in each PDU to start as I work my way up to 9 miners (3 PDU's).

Has anyone seen a difference with using the Bitmain power supply compared to the EVGA power supply? The Bitmain's is much cheaper and didn't know if the EVGA is really even necessary with my electrical setup now. I know most people use the EVGA because they are using 120v. Thoughts?

Once again thanks for all of your help thus far.

They're better, more expensive PSU's. If you want cost effective, go ahead. Personally i like the cleanest powers for my miners. But with how much money you can save, then maybe servers PSU's are the way to go.

However getting PSU packages from the forum is a better price. The Bitmain PSU is not really that much of an interesting buy.

EVGA to get the PCIE cables and power needed your up to the EVGA 1600, it runs around 400 or so.   So extremely high.   You can get server PSU's much cheaper.

There are some "kits" that can power multiple S7's if you go big enough.  And there is of course the bitmain server psu.   I have not had any issues with them they seem to work good.

With getting 240 I would compare prices on kit's and bitmains PSU.  Either way you go it will beat the EVGA by far on cost.

You can use 1300W fine, and thats 175USD but yeah its still expensive to power a single S7, especially with the nice kits using J4bberw0ck's breakout boards.

[notlist3d]

You guys have been a huge help. Thanks!

I just talked to my electrician. We are doing (3) outlets each connected to its own 240v/30 amp breaker (I have the space). There is a surge protector being installed on the whole panel (internally). I will go with one of the PDU's shown above that are rated for 30 amp but pushes less. The outlets are right by my panel which works perfect. My plan is to only plug 3 miners in each PDU to start as I work my way up to 9 miners (3 PDU's).

Has anyone seen a difference with using the Bitmain power supply compared to the EVGA power supply? The Bitmain's is much cheaper and didn't know if the EVGA is really even necessary with my electrical setup now. I know most people use the EVGA because they are using 120v. Thoughts?

Once again thanks for all of your help thus far.

They're better, more expensive PSU's. If you want cost effective, go ahead. Personally i like the cleanest powers for my miners. But with how much money you can save, then maybe servers PSU's are the way to go.

However getting PSU packages from the forum is a better price. The Bitmain PSU is not really that much of an interesting buy.

EVGA to get the PCIE cables and power needed your up to the EVGA 1600, it runs around 400 or so.   So extremely high.   You can get server PSU's much cheaper.

There are some "kits" that can power multiple S7's if you go big enough.  And there is of course the bitmain server psu.   I have not had any issues with them they seem to work good.

With getting 240 I would compare prices on kit's and bitmains PSU.  Either way you go it will beat the EVGA by far on cost.

You can use 1300W fine, and thats 175USD but yeah its still expensive to power a single S7, especially with the nice kits using J4bberw0ck's breakout boards.

The 1300 does not come with 10 PCIe cables.  Also look at B8/B9 efficiency.   I would not guarantee a 1300 doing it on current batches.

Even if it did run it would be pushing the 1300W pretty much at max unless you under-clock it.

[VirosaGITS]

You guys have been a huge help. Thanks!

I just talked to my electrician. We are doing (3) outlets each connected to its own 240v/30 amp breaker (I have the space). There is a surge protector being installed on the whole panel (internally). I will go with one of the PDU's shown above that are rated for 30 amp but pushes less. The outlets are right by my panel which works perfect. My plan is to only plug 3 miners in each PDU to start as I work my way up to 9 miners (3 PDU's).

Has anyone seen a difference with using the Bitmain power supply compared to the EVGA power supply? The Bitmain's is much cheaper and didn't know if the EVGA is really even necessary with my electrical setup now. I know most people use the EVGA because they are using 120v. Thoughts?

Once again thanks for all of your help thus far.

They're better, more expensive PSU's. If you want cost effective, go ahead. Personally i like the cleanest powers for my miners. But with how much money you can save, then maybe servers PSU's are the way to go.

However getting PSU packages from the forum is a better price. The Bitmain PSU is not really that much of an interesting buy.

EVGA to get the PCIE cables and power needed your up to the EVGA 1600, it runs around 400 or so.   So extremely high.   You can get server PSU's much cheaper.

There are some "kits" that can power multiple S7's if you go big enough.  And there is of course the bitmain server psu.   I have not had any issues with them they seem to work good.

With getting 240 I would compare prices on kit's and bitmains PSU.  Either way you go it will beat the EVGA by far on cost.

You can use 1300W fine, and thats 175USD but yeah its still expensive to power a single S7, especially with the nice kits using J4bberw0ck's breakout boards.

The 1300 does not come with 10 PCIe cables.  Also look at B8/B9 efficiency.   I would not guarantee a 1300 doing it on current batches.

Even if it did run it would be pushing the 1300W pretty much at max unless you under-clock it.

The EVGA, unlike most PSU out there, are underated for efficiency, at least, their peak limit is much higher than their rated #.
They can actually run their "100% load" no problem. Their components does not degrade easily and as such you'll find yourself possibly not needing to ever RMA it. My EVGA 1000 with 3 years used get the same reading as the brand new one. So running them at 98% load is just fine, it can handle spikes easily from there, it even handle 104% no problem. Though i'm not sure whats the true limit is.

They really can do their rated load, DC, continuously with no problem. The only downside is efficiency loss.

Now i don't know if this numbers hold across all that S7 design, but so far i get 1280W DC with my B8. I run the fans at 3360 RPM.

And yeah, you might need to get an extra cable, or maybe not, the way i set it up is;

3 double, 1 per blade, 1 single 1 per blade. Then a periff for the controller. I did not need to come up with any extra cables myself.
I don't know where i got these PCI-e converter, but i have so many of them. And since these baby are modular, i simply used a 3rd double from another EVGA.

Worse case scenario, if you somehow has absolutely nothing on hand (i have spare of everything, because being ready for anything is my motto). Grab some extra cables and perhaps y splitter while you're at it. Start by checking Finksy and Klondite's stuff.

In this case, you could get 2 4$ y splitter. If you absolutely have nothing on hand for some reason.

[buckeyez]

You only need the 240v setup if you plan on using their PSU. As others stated, can use EVEGA or another server PSU, you just need to be able to handle ~1300 watt continuous. That being said:

You should have a 20% buffer for continuous use.

Watt = Volts x Amps
so 240 Volt @ 10 Amps = 2400 Watts - 20% (480) = 1920 Watts which is plenty for a single S7.

So a 10 amp breaker would be fine for a 240V setup.

If sticking with 120V standard US then
120 Volt @ 15 Amps = 1800 Watts - 20% (360) = 1440 Watts continuous, which would also be plenty for a single S7.

So a 15 amp breaker would be fine for a 120V setup. That being said, you really shouldn't plug anything else into that circuit.

Hope this helps, any other questions feel free to ask.

Edit: Keep in mind this is for a single S7, I do not know how many you intend to setup. So adjust the math as required.

[notlist3d]

You only need the 240v setup if you plan on using their PSU. As others stated, can use EVEGA or another server PSU, you just need to be able to handle ~1300 watt continuous. That being said:

You should have a 20% buffer for continuous use.

Watt = Volts x Amps
so 240 Volt @ 10 Amps = 2400 Watts - 20% (480) = 1920 Watts which is plenty for a single S7.

So a 10 amp breaker would be fine for a 240V setup.

If sticking with 120V standard US then
120 Volt @ 15 Amps = 1800 Watts - 20% (360) = 1440 Watts continuous, which would also be plenty for a single S7.

So a 15 amp breaker would be fine for a 120V setup. That being said, you really shouldn't plug anything else into that circuit.

Hope this helps, any other questions feel free to ask.

Edit: Keep in mind this is for a single S7, I do not know how many you intend to setup. So adjust the math as required.

If he's paying a electrician it would be a shame to pay for a 240 10 amp to be put in.  It will be a little cheaper due to equipment.  But hes already going to pay for his time I would guess on electrician.

With paying for his time he might as well get 30 amp whall hes doing it.   There is not a drawback to getting it assuming the cost is not rediclous on price, some electricians do very high cost compared to part's/time.

[buckeyez]

You only need the 240v setup if you plan on using their PSU. As others stated, can use EVEGA or another server PSU, you just need to be able to handle ~1300 watt continuous. That being said:

You should have a 20% buffer for continuous use.

Watt = Volts x Amps
so 240 Volt @ 10 Amps = 2400 Watts - 20% (480) = 1920 Watts which is plenty for a single S7.

So a 10 amp breaker would be fine for a 240V setup.

If sticking with 120V standard US then
120 Volt @ 15 Amps = 1800 Watts - 20% (360) = 1440 Watts continuous, which would also be plenty for a single S7.

So a 15 amp breaker would be fine for a 120V setup. That being said, you really shouldn't plug anything else into that circuit.

Hope this helps, any other questions feel free to ask.

Edit: Keep in mind this is for a single S7, I do not know how many you intend to setup. So adjust the math as required.

If he's paying a electrician it would be a shame to pay for a 240 10 amp to be put in.  It will be a little cheaper due to equipment.  But hes already going to pay for his time I would guess on electrician.

With paying for his time he might as well get 30 amp whall hes doing it.   There is not a drawback to getting it assuming the cost is not rediclous on price, some electricians do very high cost compared to part's/time.

I'm not telling him not to get 30 Amps... All I am doing is providing the math to him so he can make his own decision on what he wants. If he is running more than 1 machine, he will need more than 10 amps anyway.

[notlist3d]

You only need the 240v setup if you plan on using their PSU. As others stated, can use EVEGA or another server PSU, you just need to be able to handle ~1300 watt continuous. That being said:

You should have a 20% buffer for continuous use.

Watt = Volts x Amps
so 240 Volt @ 10 Amps = 2400 Watts - 20% (480) = 1920 Watts which is plenty for a single S7.

So a 10 amp breaker would be fine for a 240V setup.

If sticking with 120V standard US then
120 Volt @ 15 Amps = 1800 Watts - 20% (360) = 1440 Watts continuous, which would also be plenty for a single S7.

So a 15 amp breaker would be fine for a 120V setup. That being said, you really shouldn't plug anything else into that circuit.

Hope this helps, any other questions feel free to ask.

Edit: Keep in mind this is for a single S7, I do not know how many you intend to setup. So adjust the math as required.

If he's paying a electrician it would be a shame to pay for a 240 10 amp to be put in.  It will be a little cheaper due to equipment.  But hes already going to pay for his time I would guess on electrician.

With paying for his time he might as well get 30 amp whall hes doing it.   There is not a drawback to getting it assuming the cost is not rediclous on price, some electricians do very high cost compared to part's/time.

I'm not telling him not to get 30 Amps... All I am doing is providing the math to him so he can make his own decision on what he wants. If he is running more than 1 machine, he will need more than 10 amps anyway.

The more important math in this case is the electricians cost I think.   I have a feeling 10,20,30 amp same amount of time on install.  So chances are only big difference is part's which 30 will cost a bit more.  But if your paying a electrician I have a feeling 30 amp will make most sense in almost all cases.

And also OP ask for a quote.  I had one electrician who wanted over a thousand dollars for 1 240 30 amp (way to much and to high).  Needless to say I did not use him.  I think he did not want job after seeing some miners, when he saw them was when I could tell he lost interest. 

[jeremyf327]

I will let you know the quote when I get it this week and the scope of work. I am putting in two 240v/30 amp circuits and a surge protector in the panel.

[philipma1957]

I will let you know the quote when I get it this week and the scope of work. I am putting in two 240v/30 amp circuits and a surge protector in the panel.

Good this would give you 240 x 30 = 7200 watts before 80% derate for safety or about 5700 watts per circuit.

I have two 30 amp 240 volt circuits for mining.

I have been able to 8 avalon6s for my two circuits.

I am happy I did these two circuits.

I do about 4000 watts a circuit