antminer S7 with Corsair PSU

[HarryKPeters]

Hi everbody,

I want to order the S7 batch 6. Does anyone know it works with 2x Corsair 750CSM PSU's?

Reading the specs it should:
https://bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694

However i read the controller needs a seperate PSU.

[VirosaGITS]

Hi everbody,

I want to order the S7 batch 6. Does anyone know it works with 2x Corsair 750CSM PSU's?

Reading the specs it should:
https://bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694

However i read the controller needs a seperate PSU.

Theres 3 boards with 3 PCI-e each. You can't mix PSU for a board. So you need to power 2 boards off one, 1 board of another, not sure 2 Corsairs is the way to go. The Controller just need to be powered, it does not need a dedicated PSU.

The boards need to be powered before or at the same time as the controller.

[CryptoBjorn]

Good question. On paper it should be able to be powered by the 750PSU, since there are more slots.

Regarding the controller this is new to me. Normally i connect 2 miners to 1 PSU, not the other way around.

I guess you asked bitmain they say no and tell you to buy their PSU. It should be good if they recommend it, however it is an unknown brand to me and when it goes to PSU i rely on server PSU or Corsair.

Please post your answer/ solution here.if you have it. I can bring my oldS3 PSU to use.

[VirosaGITS]

Good question. On paper it should be able to be powered by the 750PSU, since there are more slots.

Regarding the controller this is new to me. Normally i connect 2 miners to 1 PSU, not the other way around.

I guess you asked bitmain they say no and tell you to buy their PSU. It should be good if they recommend it, however it is an unknown brand to me and when it goes to PSU i rely on server PSU or Corsair.

Please post your answer/ solution here.if you have it. I can bring my oldS3 PSU to use.

It cannot, like i said, you cannot use different PSU for a single board. So to be more precise;

At an estimate 1200W at the wall, to give an idea;

-PSU #1 will need to draw 800W~ (2 boards)
-PSU #2 will need to draw 400W~ (1 board)
-PSU #2 would ideally power the controller as well (which power the fans), it need its own 6 pin, not its own PSU. Total 10 PCI-e pins.

Actual power draw of PSU#1 would be a bit lower, but overall a 750W PSU should probably not be asked to pull this much.

Last thing, if you get a corsair make sure the OEM is Seasonic or Superflower, they have some batches/series that used low quality OEM.

Personally i think i would go with a EVGA G2 1300 with this. Any 1300+ PSU made by Seasonic or Superflower behind whatever brand should do.

This is it, for using 2 PSU on a miner. As far as using a ATX PSU anyways.

[HarryKPeters]

Good question. On paper it should be able to be powered by the 750PSU, since there are more slots.

Regarding the controller this is new to me. Normally i connect 2 miners to 1 PSU, not the other way around.

I guess you asked bitmain they say no and tell you to buy their PSU. It should be good if they recommend it, however it is an unknown brand to me and when it goes to PSU i rely on server PSU or Corsair.

Please post your answer/ solution here.if you have it. I can bring my oldS3 PSU to use.

It cannot, like i said, you cannot use different PSU for a single board. So to be more precise;

At an estimate 1200W at the wall, to give an idea;

-PSU #1 will need to draw 800W~ (2 boards)
-PSU #2 will need to draw 400W~ (1 board)
-PSU #2 would ideally power the controller as well (which power the fans), it need its own 6 pin, not its own PSU. Total 10 PCI-e pins.

Actual power draw of PSU#1 would be a bit lower, but overall a 750W PSU should probably not be asked to pull this much.

Last thing, if you get a corsair make sure the OEM is Seasonic or Superflower, they have some batches/series that used low quality OEM.

Personally i think i would go with a EVGA G2 1300 with this. Any 1300+ PSU made by Seasonic or Superflower behind whatever brand should do.

This is it, for using 2 PSU on a miner. As far as using a ATX PSU anyways.

With other words i would need 3 PSU's of 2x 750 and 1 of little W. Hmm I think buying an EVGA would be better then.

Can you tell me if this setup will succeed:
-PSU #1 will need to draw 800W~ (2 boards)
-PSU #2 will need to draw 400W~ (1 board)
-PSU #2 would ideally power the controller as well (which power the fans), it need its own 6 pin, not its own PSU. Total 10 PCI-e pins.

PSU 1 Corsair RM 1000W
PSU 2 Corsair CSM 750W

[VirosaGITS]

Good question. On paper it should be able to be powered by the 750PSU, since there are more slots.

Regarding the controller this is new to me. Normally i connect 2 miners to 1 PSU, not the other way around.

I guess you asked bitmain they say no and tell you to buy their PSU. It should be good if they recommend it, however it is an unknown brand to me and when it goes to PSU i rely on server PSU or Corsair.

Please post your answer/ solution here.if you have it. I can bring my oldS3 PSU to use.

It cannot, like i said, you cannot use different PSU for a single board. So to be more precise;

At an estimate 1200W at the wall, to give an idea;

-PSU #1 will need to draw 800W~ (2 boards)
-PSU #2 will need to draw 400W~ (1 board)
-PSU #2 would ideally power the controller as well (which power the fans), it need its own 6 pin, not its own PSU. Total 10 PCI-e pins.

Actual power draw of PSU#1 would be a bit lower, but overall a 750W PSU should probably not be asked to pull this much.

Last thing, if you get a corsair make sure the OEM is Seasonic or Superflower, they have some batches/series that used low quality OEM.

Personally i think i would go with a EVGA G2 1300 with this. Any 1300+ PSU made by Seasonic or Superflower behind whatever brand should do.

This is it, for using 2 PSU on a miner. As far as using a ATX PSU anyways.

With other words i would need 3 PSU's of 2x 750 and 1 of little W. Hmm I think buying an EVGA would be better then.

Can you tell me if this setup will succeed:
-PSU #1 will need to draw 800W~ (2 boards)
-PSU #2 will need to draw 400W~ (1 board)
-PSU #2 would ideally power the controller as well (which power the fans), it need its own 6 pin, not its own PSU. Total 10 PCI-e pins.

PSU 1 Corsair RM 1000W
PSU 2 Corsair CSM 750W

That would work, but i would definitively go for a EVGA G2 1300w instead, cheaper than those 2 PSU combined, better PSU, no risk of having a part not powered at the same time or part of the miner shutting down after a surge.

If you already have them available or are a hardcore fan of picking up PSU of varying OEM, then sure, i guess it'll work anyways.

[dogie]

It cannot, like i said, you cannot use different PSU for a single board. So to be more precise;

At an estimate 1200W at the wall, to give an idea;

-PSU #1 will need to draw 800W~ (2 boards)
-PSU #2 will need to draw 400W~ (1 board)
-PSU #2 would ideally power the controller as well (which power the fans), it need its own 6 pin, not its own PSU. Total 10 PCI-e pins.

Actual power draw of PSU#1 would be a bit lower, but overall a 750W PSU should probably not be asked to pull this much.

Last thing, if you get a corsair make sure the OEM is Seasonic or Superflower, they have some batches/series that used low quality OEM.

Personally i think i would go with a EVGA G2 1300 with this. Any 1300+ PSU made by Seasonic or Superflower behind whatever brand should do.

This is it, for using 2 PSU on a miner. As far as using a ATX PSU anyways.

I actually tested this exact configuration, it does work but its pretty terrible. 800W from the wall = around 720W load on the PSU which has a 825W peak load rating. However the limit of these PSUs is more the cooling actually, they don't fare well with high loadings and 35C+ ambients, so its more of a 750W peak rating when it gets warm.

The other consideration is that the cables are 18AWG which means you're asking about 290W per cable rail. This is within the specification of the cable (2x 8 pin PCI-E) but they do get warm. The first PSU also requires 2x 2x molex to PCI-E adapters in order to make up the 6 it needs and to reduce PCI-E cable rail loads.

[garrytaylor1]

Im looking of sttarting out miningthis looks like a good one any recomendations?

[HarryKPeters]

It cannot, like i said, you cannot use different PSU for a single board. So to be more precise;

At an estimate 1200W at the wall, to give an idea;

-PSU #1 will need to draw 800W~ (2 boards)
-PSU #2 will need to draw 400W~ (1 board)
-PSU #2 would ideally power the controller as well (which power the fans), it need its own 6 pin, not its own PSU. Total 10 PCI-e pins.

Actual power draw of PSU#1 would be a bit lower, but overall a 750W PSU should probably not be asked to pull this much.

Last thing, if you get a corsair make sure the OEM is Seasonic or Superflower, they have some batches/series that used low quality OEM.

Personally i think i would go with a EVGA G2 1300 with this. Any 1300+ PSU made by Seasonic or Superflower behind whatever brand should do.

This is it, for using 2 PSU on a miner. As far as using a ATX PSU anyways.

I actually tested this exact configuration, it does work but its pretty terrible. 800W from the wall = around 720W load on the PSU which has a 825W peak load rating. However the limit of these PSUs is more the cooling actually, they don't fare well with high loadings and 35C+ ambients, so its more of a 750W peak rating when it gets warm.

The other consideration is that the cables are 18AWG which means you're asking about 290W per cable rail. This is within the specification of the cable (2x 8 pin PCI-E) but they do get warm. The first PSU also requires 2x 2x molex to PCI-E adapters in order to make up the 6 it needs and to reduce PCI-E cable rail loads.

Thanks a lot, this was the last confirmation i needed. I thought it should work on paper, but practical use is different.

The 750 PSU can be used for other mining equipment, I will go with an Corsair  1200 AX the.

[adaseb]

You should look into getting an Avalon 6 instead.

Less PCIe are needed. The Batch 6 is bad because it only uses 1000 Watts or so but needs 10 PCIe.

Which is like 2 expensive PSUs or 3-4 mid priced PSUs.

Reason why you need so many mid-priced PSUs is because each blade requires 3 PCIe connections and you CANT intermix them between boards, which mean an CX750W can only power 1 board.

[dogie]

Reason why you need so many mid-priced PSUs is because each blade requires 3 PCIe connections and you CANT intermix them between boards, which mean an CX750W can only power 1 board.

A CX750* can power two hashing boards.

[HarryKPeters]

You should look into getting an Avalon 6 instead.

Less PCIe are needed. The Batch 6 is bad because it only uses 1000 Watts or so but needs 10 PCIe.

Which is like 2 expensive PSUs or 3-4 mid priced PSUs.

Reason why you need so many mid-priced PSUs is because each blade requires 3 PCIe connections and you CANT intermix them between boards, which mean an CX750W can only power 1 board.

Interesting. I googled the Avalon 6 but only find this tread
https://bitcointalk.org/index.php?topic=1195199.0
and this shop:
https://ehash.com/shop/

[philipma1957]

It cannot, like i said, you cannot use different PSU for a single board. So to be more precise;

At an estimate 1200W at the wall, to give an idea;

-PSU #1 will need to draw 800W~ (2 boards)
-PSU #2 will need to draw 400W~ (1 board)
-PSU #2 would ideally power the controller as well (which power the fans), it need its own 6 pin, not its own PSU. Total 10 PCI-e pins.

Actual power draw of PSU#1 would be a bit lower, but overall a 750W PSU should probably not be asked to pull this much.

Last thing, if you get a corsair make sure the OEM is Seasonic or Superflower, they have some batches/series that used low quality OEM.

Personally i think i would go with a EVGA G2 1300 with this. Any 1300+ PSU made by Seasonic or Superflower behind whatever brand should do.

This is it, for using 2 PSU on a miner. As far as using a ATX PSU anyways.

I actually tested this exact configuration, it does work but its pretty terrible. 800W from the wall = around 720W load on the PSU which has a 825W peak load rating. However the limit of these PSUs is more the cooling actually, they don't fare well with high loadings and 35C+ ambients, so its more of a 750W peak rating when it gets warm.

The other consideration is that the cables are 18AWG which means you're asking about 290W per cable rail. This is within the specification of the cable (2x 8 pin PCI-E) but they do get warm. The first PSU also requires 2x 2x molex to PCI-E adapters in order to make up the 6 it needs and to reduce PCI-E cable rail loads.

Thanks a lot, this was the last confirmation i needed. I thought it should work on paper, but practical use is different.

The 750 PSU can be used for other mining equipment, I will go with an Corsair  1200 AX the.

why http://www.amazon.com/Corsair-Professional-Digital-Modular-Platinum/dp/B008Q7HUR0/ref=sr_1_1?ie=UTF8&qid=1447116528&sr=8-1&keywords=corsair+1200+ax

this is a costly piece of gear  and it is short in the pcie department


get this

http://www.amazon.com/EVGA-SuperNOVA-Crossfire-Warranty-120-G2-1600-X1/dp/B00MMLUIE8/ref=sr_1_3?ie=UTF8&qid=1447116657&sr=8-3&keywords=evga+1600

has 9 pcie jacks  spilt one to the controller.    less money more watts more pcie cable long warranty

[adaseb]

Reason why you need so many mid-priced PSUs is because each blade requires 3 PCIe connections and you CANT intermix them between boards, which mean an CX750W can only power 1 board.

A CX750* can power two hashing boards.

But doesn't an S7 require all 3 PCIe connectors per board?

[VirosaGITS]

Reason why you need so many mid-priced PSUs is because each blade requires 3 PCIe connections and you CANT intermix them between boards, which mean an CX750W can only power 1 board.

A CX750* can power two hashing boards.

But doesn't an S7 require all 3 PCIe connectors per board?

Officially, yes. In reality, you should be very safe with 2 and you might be able to get away with 1(but dont do it), since by any mean thinkable, plugging 3 would be 100watts~ per connector is ridiculously overkill, 2 would be 150watts per connector and 1 would be 300 watts per.

300 watts is very limit, but with a small underclock i would think it would do just fine. Regardless always check your connectors regularly to make sure they are not heating up.

So it comes down to the "warranty" if you do it, well, might not want to include that information if something unrelated break.

[HarryKPeters]

@VirosaGITS
Thanks a lot for your reply. There is no +1 here but you deserve it.

I bought the S7 and got a cheap server PSU. Without your help i would probably blown my PSU's and miner to . ***