Hi all,
Just a quick update to let you know we've just uploaded a quick preview of the miner!
https://www.youtube.com/watch?v=6o3QLdlxbLo
Tutorial coming soon...
Enjoy!
Topic: World biggest bitcoin /SHA256 miner 7.7T@3400W - page 7. (Read 16149 times)
That automatic wire cutter stripper crimper machine is just too badass I want it. Looks like it takes a bit of setup to get it running. Thanks for the link!
I prefer the 2880w power supply mainly because it is modular with the breakout board, and that allows me to select the awg of wire to use for the pci-e cabling, the length, and reuse it in case of a dead supply. It is extremely efficient compared to almost every other power supply, does not get very hot, and has 3 fans to cool so if one dies it wont. Add in the fact they are available in the states in bulk shipped for less than the cost of the breakout board.
I think just one of these 2880w power supplies could power one s5+, even at standard clock. Right now my farm is powering 5 S5 per 2880w power supply and my metered pdus are reporting about 3300w being consumed. I may order one up just to test.
This is what a 6 2880w / 30 S5 readout looks like on one of my pdus: https://i.imgur.com/JTw7HZ0.jpg
I prefer the 2880w power supply mainly because it is modular with the breakout board, and that allows me to select the awg of wire to use for the pci-e cabling, the length, and reuse it in case of a dead supply. It is extremely efficient compared to almost every other power supply, does not get very hot, and has 3 fans to cool so if one dies it wont. Add in the fact they are available in the states in bulk shipped for less than the cost of the breakout board.
I think just one of these 2880w power supplies could power one s5+, even at standard clock. Right now my farm is powering 5 S5 per 2880w power supply and my metered pdus are reporting about 3300w being consumed. I may order one up just to test.
This is what a 6 2880w / 30 S5 readout looks like on one of my pdus: https://i.imgur.com/JTw7HZ0.jpg
There are pros and cons to use server PSU , like 2800W , you buy from china , it is 6KG each, it will be expensive shipping cost .
I think the IBM 2880W is a good option since 3 of these PSU's can run 2 of these miners. 3 PSU for every 2 miners is not bad.
This is one goofy contraption. why the obsession with PCI connectors? Is that really the best solution for industrial scale mining?
I prefer it greatly over a proprietary power supply. High end efficient used +12V server power supplies will beat new every time, not only in price but performance as well.
Buy yourself an automatic wire cutter/stripper machine, some 5000ft spools of 16awg primary wire, reels of crimping pins and bags of end connectors. And you will never have to buy a PCI-E cable again, and you can make them just the length you need.
not sure that would be very good for my 2 MW facility. that is a shit ton of work!
I priced it out and with my 1 MW facility it would have added at least 100K USD to the overall build out cost. I'm willing to do a lot of work to get that. Most of that would be in the overpriced power supplies that are bundled with the miner making the overall cost per ghs that much more. Saves money ongoing because I can guarantee you my server power supplies are more efficient than say the ones in a S4. 1-2% savings of 1 MW let alone 2 MW will add up quick.
The key is the automatic wire cutter stripper machine: https://www.youtube.com/watch?v=3vb0RM1xMCw
I liked the screw terminals of the S1 but the plug and plug of pcie on both ends using the breakout boards allows for easier swapping of equipment. Which, when mining on an industrial level that is pretty much an ongoing task.
Older pic showing clean pcie install: https://i.imgur.com/E6Ju4Us.jpg
EDIT:
https://i.imgur.com/F4ylA08.jpg
https://i.imgur.com/mi2T3Tt.jpg
Also don't forget the modularity it has in that it allows us an upgrade path to new hardware without having to buy the power supplies all over again.
For medium amount of cables (lets say 1500+ cables), I agree that the automatic wire cutter and a semi automatic wire crimper are probably the way to go if you have someone or some time to operate them.
For even better efficiency, and for more than 5000 cables, I'd probably suggest to go for the fully automatic cutting/crimping machine:
https://www.youtube.com/watch?v=XUzsm2FQteA
The cost is roughly $6k for the automatic machine.
Semi automatic crimper + automatic wire cutter/stripper will cost $2k to $3k depending on options and brand.
Of course, it takes a lot of time for the assembly of the cables.
So, as I said from the beginning, it's only a good option if you have the time or someone to make the cables.
If you don't, buying the cables and server PSUs + breakout boards is the most economical option.
There are pros and cons to use server PSU , like 2800W , you buy from china , it is 6KG each, it will be expensive shipping cost .
This is one goofy contraption. why the obsession with PCI connectors? Is that really the best solution for industrial scale mining?
I prefer it greatly over a proprietary power supply. High end efficient used +12V server power supplies will beat new every time, not only in price but performance as well.
Buy yourself an automatic wire cutter/stripper machine, some 5000ft spools of 16awg primary wire, reels of crimping pins and bags of end connectors. And you will never have to buy a PCI-E cable again, and you can make them just the length you need.
not sure that would be very good for my 2 MW facility. that is a shit ton of work!
I priced it out and with my 1 MW facility it would have added at least 100K USD to the overall build out cost. I'm willing to do a lot of work to get that. Most of that would be in the overpriced power supplies that are bundled with the miner making the overall cost per ghs that much more. Saves money ongoing because I can guarantee you my server power supplies are more efficient than say the ones in a S4. 1-2% savings of 1 MW let alone 2 MW will add up quick.
The key is the automatic wire cutter stripper machine: https://www.youtube.com/watch?v=3vb0RM1xMCw
I liked the screw terminals of the S1 but the plug and plug of pcie on both ends using the breakout boards allows for easier swapping of equipment. Which, when mining on an industrial level that is pretty much an ongoing task.
Older pic showing clean pcie install: https://i.imgur.com/E6Ju4Us.jpg
EDIT:
https://i.imgur.com/F4ylA08.jpg
https://i.imgur.com/mi2T3Tt.jpg
Also don't forget the modularity it has in that it allows us an upgrade path to new hardware without having to buy the power supplies all over again.
For medium amount of cables (lets say 1500+ cables), I agree that the automatic wire cutter and a semi automatic wire crimper are probably the way to go if you have someone or some time to operate them.
For even better efficiency, and for more than 5000 cables, I'd probably suggest to go for the fully automatic cutting/crimping machine:
https://www.youtube.com/watch?v=XUzsm2FQteA
The cost is roughly $6k for the automatic machine.
Semi automatic crimper + automatic wire cutter/stripper will cost $2k to $3k depending on options and brand.
Of course, it takes a lot of time for the assembly of the cables.
So, as I said from the beginning, it's only a good option if you have the time or someone to make the cables.
If you don't, buying the cables and server PSUs + breakout boards is the most economical option.
I don't know, this thing kind of scares me. At this point I'd rather wait for the S7 which should hit soon enough.
with this out the s-7 will be delayed into October at best.
I don't know, these aren't "new" so maybe this is the last hurrah for these chips.
Historically, odd numbers are new chips with Bitmain. So it's safe to assume that this is indeed the "last hurrah". S7 will be a new chip.
Hi All ,
Good news , Customers from USA , ITOP will ship locally , No tax and shipping cost issue .
[im-g]http://www.itopshop.net/images/mce_upload/ok111.jpg[/img]
[im-g]http://www.itopshop.net/images/mce_upload/ok222.jpg[/img]
Good news , Customers from USA , ITOP will ship locally , No tax and shipping cost issue .
[im-g]http://www.itopshop.net/images/mce_upload/ok111.jpg[/img]
[im-g]http://www.itopshop.net/images/mce_upload/ok222.jpg[/img]
Thanks!
What are the PSU's on the picture? Are they the ones sold by Bitmain for the S4's?
We use several case psu and server psus ,try to get enough PCIE 6pin connectors, this is the pictures we do testing.
[i-mg]http://www.itop-corp.com/asset/file/image/20150811/20150811130436_11101.jpg[/img]
What an absolute clusterfuck!!
I believe your farm is using 220v AC. So please try our APW3 power supply. If you want to build
large hash power, please talk to us in advance, and we can ship the PSU by sea, which will be very very cheap right now. It has 1600w capacity and it is very good for the S5+ deploy.
https://bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694
The biggest APW3-12-1600-B2 manufacturing mistake is too short PCI-E cables.
The problem is, even the two side by side placed S5 Miner, not to mention S5 +
Click on the image to view enlarge picture
We are preparing the oversea sale of the S5+. Right now we are very sure on Friday we can open the sale officially, if nothing unexpected happen.
Here we go... Drumroll. :-)
We are preparing the oversea sale of the S5+. Right now we are very sure on Friday we can open the sale officially, if nothing unexpected happen.
This is one goofy contraption. why the obsession with PCI connectors? Is that really the best solution for industrial scale mining?
I prefer it greatly over a proprietary power supply. High end efficient used +12V server power supplies will beat new every time, not only in price but performance as well.
Buy yourself an automatic wire cutter/stripper machine, some 5000ft spools of 16awg primary wire, reels of crimping pins and bags of end connectors. And you will never have to buy a PCI-E cable again, and you can make them just the length you need.
not sure that would be very good for my 2 MW facility. that is a shit ton of work!
I believe your farm is using 220v AC. So please try our APW3 power supply. If you want to build some large hash power, please talk to us in advance, and we can ship the PSU by sea, which will be very very cheap right now. It has 1600w capacity and it is very good for the S5+ deploy.
https://bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694
looks cool but i doubt its real
QuintLeo- All the more reason for people to be getting away from ATX power supplies. They are over-priced, and under-built. I think it's past time everyone stops pretending they'll ever re-purpose 20x ATX PSUs for anything, lol.
I priced it out and with my 1 MW facility it would have added at least 100K USD to the overall build out cost. I'm willing to do a lot of work to get that. Most of that would be in the overpriced power supplies that are bundled with the miner making the overall cost per ghs that much more. Saves money ongoing because I can guarantee you my server power supplies are more efficient than say the ones in a S4. 1-2% savings of 1 MW let alone 2 MW will add up quick.
The key is the automatic wire cutter stripper machine: https://www.youtube.com/watch?v=3vb0RM1xMCw
I liked the screw terminals of the S1 but the plug and plug of pcie on both ends using the breakout boards allows for easier swapping of equipment. Which, when mining on an industrial level that is pretty much an ongoing task.
Older pic showing clean pcie install: https://i.imgur.com/E6Ju4Us.jpg
Very nice farm, and excellent choice of PSU. There is no better, in my extremely biased opinion.
I priced it out and with my 1 MW facility it would have added at least 100K USD to the overall build out cost. I'm willing to do a lot of work to get that. Most of that would be in the overpriced power supplies that are bundled with the miner making the overall cost per ghs that much more. Saves money ongoing because I can guarantee you my server power supplies are more efficient than say the ones in a S4. 1-2% savings of 1 MW let alone 2 MW will add up quick.
The key is the automatic wire cutter stripper machine: https://www.youtube.com/watch?v=3vb0RM1xMCw
I liked the screw terminals of the S1 but the plug and plug of pcie on both ends using the breakout boards allows for easier swapping of equipment. Which, when mining on an industrial level that is pretty much an ongoing task.
Older pic showing clean pcie install: https://i.imgur.com/E6Ju4Us.jpg
Very nice farm, and excellent choice of PSU. There is no better, in my extremely biased opinion.
This is one goofy contraption. why the obsession with PCI connectors? Is that really the best solution for industrial scale mining?
I prefer it greatly over a proprietary power supply. High end efficient used +12V server power supplies will beat new every time, not only in price but performance as well.
Buy yourself an automatic wire cutter/stripper machine, some 5000ft spools of 16awg primary wire, reels of crimping pins and bags of end connectors. And you will never have to buy a PCI-E cable again, and you can make them just the length you need.
not sure that would be very good for my 2 MW facility. that is a shit ton of work!
I priced it out and with my 1 MW facility it would have added at least 100K USD to the overall build out cost. I'm willing to do a lot of work to get that. Most of that would be in the overpriced power supplies that are bundled with the miner making the overall cost per ghs that much more. Saves money ongoing because I can guarantee you my server power supplies are more efficient than say the ones in a S4. 1-2% savings of 1 MW let alone 2 MW will add up quick.
The key is the automatic wire cutter stripper machine: https://www.youtube.com/watch?v=3vb0RM1xMCw
I liked the screw terminals of the S1 but the plug and plug of pcie on both ends using the breakout boards allows for easier swapping of equipment. Which, when mining on an industrial level that is pretty much an ongoing task.
Older pic showing clean pcie install: https://i.imgur.com/E6Ju4Us.jpg
EDIT:
https://i.imgur.com/F4ylA08.jpg
https://i.imgur.com/mi2T3Tt.jpg
Also don't forget the modularity it has in that it allows us an upgrade path to new hardware without having to buy the power supplies all over again.
PCI-E specs the 6 pin version at 75 watts because they are being VERY VERY conservative. It was the 8 pin version (2 extra ground leads, NO extra +12 leads, DUMB choice IMO) that specs 150 watts.
These are PCI-E specs, NOT connector specs.
Power supplies with PCI-E connectors are a LOT more common, I see no point in reverting to primitive screw-type terminals and many reasons NOT to do so in the wattage range these miners run.
P.S. - worked at Qualidyne for a while, where 100 amps was a LOW current output on many of the PS I tested for use in mainframes, commonly at +5v. This was a long time back though, you needed most of a square foot to fit a 1KW power supply into back then, switchers had a lot lower frequency capability due to the parts being many many generations older tech....
One plus side (for me) on using standard ATX power supplies - eventually the living ones can get switched into real computers, if Bitcoin mining ever becomes completely uneconomical and I get to switch back to working on my d.net/GIMPS/Folding@Home planned farm....
so i just run extension cords to different outlets? lol
Not a real good idea, but if you use the heavy-duty A/C type cords it would work. I prefer to just wire additional outlets close to the mining area(s).
These are PCI-E specs, NOT connector specs.
Power supplies with PCI-E connectors are a LOT more common, I see no point in reverting to primitive screw-type terminals and many reasons NOT to do so in the wattage range these miners run.
P.S. - worked at Qualidyne for a while, where 100 amps was a LOW current output on many of the PS I tested for use in mainframes, commonly at +5v. This was a long time back though, you needed most of a square foot to fit a 1KW power supply into back then, switchers had a lot lower frequency capability due to the parts being many many generations older tech....
One plus side (for me) on using standard ATX power supplies - eventually the living ones can get switched into real computers, if Bitcoin mining ever becomes completely uneconomical and I get to switch back to working on my d.net/GIMPS/Folding@Home planned farm....
Quote
so i just run extension cords to different outlets? lol
Not a real good idea, but if you use the heavy-duty A/C type cords it would work. I prefer to just wire additional outlets close to the mining area(s).
Not to stir the pot, but how is it that PCIe connectors are only rated at 150W? That must be application-specific derived from GPU's. The connectors are based off the #5556 Molex Mini-Fit Jr connectors, which are rated for 7 or 8a (depending on type of pins used) per 12V+ circuit when used with 16 or 18awg wire (84-96W x 3 = 252-288W RATING): http://www.molex.com/pdm_docs/ps/PS-5556-001.pdf
Also in regards to temperature and current testing:
Also in regards to temperature and current testing:
Quote
** Ratings shown represent MAXIMUM
current carrying capacity of a fully loaded connector
with all circuits powered. Ratings are based on a 30°C
maximum temperature rise limit over ambient (room temperature).
current carrying capacity of a fully loaded connector
with all circuits powered. Ratings are based on a 30°C
maximum temperature rise limit over ambient (room temperature).
When you look carefully at the PCIe power connector spec, one of the +12V lines was allowed to be NC (Not Connected). If it was connected, it was required to be +12V. Hence to be absolutely safe, you can really only count two of the +12V pins as delivering power. Hence a more conservative estimate would be much closer to the 150W value for long term use (i.e. not the absolute maximum). They probably didn't want the connectors to discolor over time due to the heat.
Yes, I know that most all miner vendors assume you can get well over 200W per connector. Not everybody buys a power supply where the PSU manufacturer has connected all three +12V lines with 16AWG wire.
This is one goofy contraption. why the obsession with PCI connectors? Is that really the best solution for industrial scale mining?
I prefer it greatly over a proprietary power supply. High end efficient used +12V server power supplies will beat new every time, not only in price but performance as well.
Buy yourself an automatic wire cutter/stripper machine, some 5000ft spools of 16awg primary wire, reels of crimping pins and bags of end connectors. And you will never have to buy a PCI-E cable again, and you can make them just the length you need.
not sure that would be very good for my 2 MW facility. that is a shit ton of work!
This is one goofy contraption. why the obsession with PCI connectors? Is that really the best solution for industrial scale mining?
I prefer it greatly over a proprietary power supply. High end efficient used +12V server power supplies will beat new every time, not only in price but performance as well.
Buy yourself an automatic wire cutter/stripper machine, some 5000ft spools of 16awg primary wire, reels of crimping pins and bags of end connectors. And you will never have to buy a PCI-E cable again, and you can make them just the length you need.
Nope, 6 pin PCI-E connectors have certainly run their usefulness, both economically and practically. They should have reverted to the trusty old screw terminals that were sported on the S1.
This is one goofy contraption. why the obsession with PCI connectors? Is that really the best solution for industrial scale mining?
I prefer it greatly over a proprietary power supply. High end efficient used +12V server power supplies will beat new every time, not only in price but performance as well.
Buy yourself an automatic wire cutter/stripper machine, some 5000ft spools of 16awg primary wire, reels of crimping pins and bags of end connectors. And you will never have to buy a PCI-E cable again, and you can make them just the length you need.
thats all good for smaller scale home hobby miners.. but you gotta think giant farms would prefer all in one units similar to the s4+, SP10 and SP3x.. just makes the server rooms cleaner and easier to swap things in and out.. but then again ive seen some china farms that simply dont give a crap about cable management and are just giant rats nest of wires everywhere.
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