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Topic: [WTS] ATX PSU to 2.5 or 2.1/5.5mm 12V coaxial plug power cables [New Product!!] - page 14. (Read 68360 times)

full member
Activity: 155
Merit: 100
With BFL shipping way over power spec, how would one modify existing cables to make them compatible with the new hardware? From what I saw, they will draw upwards of 160w, which is more than what 1 line can offer.

Would it be possible to splice something up where for every 3 12bv lines, you can run 2 BFL ASIC? The theory being that each 6 pin adaptor provides 3 12v lines, for a max of 360w, while 2 BFLs will consume 320w. Would that be safe to run 24/7? Or would you suggest 2 dedicated 12v lines per BFL to be safe? Most PSUs have pairs of 6 pins, which would give you 3 BFLs powered total.

Without final numbers on what will be delivered by BFL I can only speculate.  The good bet would be to make an adapter that takes the +12v from my cable and creates a 'Y' to go to two +12v leads on the PCIe cable. This would mean only one BFL device per 6pin PCIe unfortunately. Trying to squeeze more BFL devices on would only overload the 18AWG wires on the PSU cable.  It is not ideal and has too many points of failure for my liking but it should work.

Ideally what needs to happen is BFL get their act together and deliver a unit with the specs they promised but that is another story.

My 6 pins are all 6+2 pins, which have 3 12v lines. That may not be common, so I guess I misspoke. My intention was with an 8 pin setup.

However, If I run a Y-splitter to a set of your cables, won't all 160ish watts run through your single cable? Wouldn't that overload your cable at 18 guage? What would be the max load capable with a 16 guage?

My thought was that I'd have to disassble the cables and manually connect 2 12v lines to the barrel plugs and 2 grounds as well. Or am I misunderstanding something?

Also, thanks for the quick response!
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
With BFL shipping way over power spec, how would one modify existing cables to make them compatible with the new hardware? From what I saw, they will draw upwards of 160w, which is more than what 1 line can offer.

Would it be possible to splice something up where for every 3 12bv lines, you can run 2 BFL ASIC? The theory being that each 6 pin adaptor provides 3 12v lines, for a max of 360w, while 2 BFLs will consume 320w. Would that be safe to run 24/7? Or would you suggest 2 dedicated 12v lines per BFL to be safe? Most PSUs have pairs of 6 pins, which would give you 3 BFLs powered total.

Without final numbers on what will be delivered by BFL I can only speculate.  The good bet would be to make an adapter that takes the +12v from my cable and creates a 'Y' to go to two +12v leads on the PCIe cable. This would mean only one BFL device per 6pin PCIe unfortunately. Trying to squeeze more BFL devices on would only overload the 18AWG wires on the PSU cable.  It is not ideal and has too many points of failure for my liking but it should work.

Ideally what needs to happen is BFL get their act together and deliver a unit with the specs they promised but that is another story.
full member
Activity: 155
Merit: 100
With BFL shipping way over power spec, how would one modify existing cables to make them compatible with the new hardware? From what I saw, they will draw upwards of 160w, which is more than what 1 line can offer.

Would it be possible to splice something up where for every 3 12bv lines, you can run 2 BFL ASIC? The theory being that each 6 pin adaptor provides 3 12v lines, for a max of 360w, while 2 BFLs will consume 320w. Would that be safe to run 24/7? Or would you suggest 2 dedicated 12v lines per BFL to be safe? Most PSUs have pairs of 6 pins, which would give you 3 BFLs powered total.
legendary
Activity: 2912
Merit: 1060
hero member
Activity: 576
Merit: 500
And thank you as well Cablez! Your cables are extremely well made and save me from running power strip into power strip into another power strip into wall outlet! Grin
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
EDIT: 3-28-2013   It has been one year since I started selling my cables here to help the FPGA mining community and I just wanted to say thank you for keeping this endeavor going. I always new it was a niche project but it was fun and allowed me to positively occupy my time.    Thank you guys again.

Because of current BTC pricing I will no longer list my prices as they become irrelevant too quickly. Just PM me for a quote.
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
Another successful order with Cablez completed.  Thanks Cablez!

Thank you as well.  panda1 gets another +1 from me. Smiley
full member
Activity: 187
Merit: 100
Another successful order with Cablez completed.  Thanks Cablez!
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
I would like a cable made a couple actually. I have a BFL Single and would like to plug it in to a Seasonic X750 PSU. Also I would like a individually wraped main power and EPS12V power cable. Let me know if you would consider making these.

Sure, I would be happy to help you out.  Please PM me and we can discuss specifics.
hero member
Activity: 497
Merit: 500
I would like a cable made a couple actually. I have a BFL Single and would like to plug it in to a Seasonic X750 PSU. Also I would like a individually wraped main power and EPS12V power cable. Let me know if you would consider making these.
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
FYI:  Cablez delivers high quality products.  I have placed several orders with him and have never been disappointed.   


Thank you for the vote of confidence.  I will say that my dealings with infamousdutch have gone super smooth and he has been very reputable. Smiley
member
Activity: 105
Merit: 10
FYI:  Cablez delivers high quality products.  I have placed several orders with him and have never been disappointed.   
hero member
Activity: 576
Merit: 500
I just had a single power brick die and figured this would be a perfect time to order some cables from you. What cable would you suggest to power 4 BFL singles? Also would these be able to power BFL Single SC ASICs when they come out? Can they plug in via molex? The computer also has GPUs running on it so I am not sure what other free connections it has besides molex (not at home atm to check)

Hey Morblias, 

Bad luck with that power brick.  I would be happy to set you up with cables for you power needs. In answer to your questions: Depending on what connectors you have free on your PSU we can do 4 singles with 1 or 2 cables. The BFL SC singles are in the same power envelope as the current gen singles and also uses the same connector so a cable purchased now can be re-used. The BFL single only uses a 2.5mmID/5.5mmOD coaxial plug (DC barrel jack) for power so that is all we can work with.

When you have time to check your PSU send me a PM and we can set something up. Thanks for your interest. Smiley

I'd like to know too,so I'll be wanting to know the outcome of this,please  Wink

I'll post the specs for the PSU I intend to use a little later.

I had a free CPU 4 pin plug in that will be used for 2 barrel connectors and also a GPU 6 pin for 3 barrel connectors. 5 Should be enough for now Smiley
legendary
Activity: 2212
Merit: 1001
I just had a single power brick die and figured this would be a perfect time to order some cables from you. What cable would you suggest to power 4 BFL singles? Also would these be able to power BFL Single SC ASICs when they come out? Can they plug in via molex? The computer also has GPUs running on it so I am not sure what other free connections it has besides molex (not at home atm to check)

Hey Morblias, 

Bad luck with that power brick.  I would be happy to set you up with cables for you power needs. In answer to your questions: Depending on what connectors you have free on your PSU we can do 4 singles with 1 or 2 cables. The BFL SC singles are in the same power envelope as the current gen singles and also uses the same connector so a cable purchased now can be re-used. The BFL single only uses a 2.5mmID/5.5mmOD coaxial plug (DC barrel jack) for power so that is all we can work with.

When you have time to check your PSU send me a PM and we can set something up. Thanks for your interest. Smiley

I'd like to know too,so I'll be wanting to know the outcome of this,please  Wink

I'll post the specs for the PSU I intend to use a little later.
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
I just had a single power brick die and figured this would be a perfect time to order some cables from you. What cable would you suggest to power 4 BFL singles? Also would these be able to power BFL Single SC ASICs when they come out? Can they plug in via molex? The computer also has GPUs running on it so I am not sure what other free connections it has besides molex (not at home atm to check)

Hey Morblias, 

Bad luck with that power brick.  I would be happy to set you up with cables for you power needs. In answer to your questions: Depending on what connectors you have free on your PSU we can do 4 singles with 1 or 2 cables. The BFL SC singles are in the same power envelope as the current gen singles and also uses the same connector so a cable purchased now can be re-used. The BFL single only uses a 2.5mmID/5.5mmOD coaxial plug (DC barrel jack) for power so that is all we can work with.

When you have time to check your PSU send me a PM and we can set something up. Thanks for your interest. Smiley
hero member
Activity: 576
Merit: 500
I just had a single power brick die and figured this would be a perfect time to order some cables from you. What cable would you suggest to power 4 BFL singles? Also would these be able to power BFL Single SC ASICs when they come out? Can they plug in via molex? The computer also has GPUs running on it so I am not sure what other free connections it has besides molex (not at home atm to check)
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
what do u mean by peripheral chain?   i could guess but i want to know exactly what u mean.

Typically an ATX PSU will chain together 2 to 3 4pin molexes all on one cable with the intent to power several hard drives. They are all using the same 18AWG 12V wire to do this.

If you were to chain several bASIC devices this way you would overload that 18AWG wire and have a burned wire because the max is 15A or 1.5 bASIC devices.

A custom cable that takes this into account can be built to safely power multiple devices by using multiple source wires. I hope that this explanation makes it clearer, if not please ask more. Smiley 

legendary
Activity: 1764
Merit: 1002
if we buy the psu's from bASIC's website would we need custom cables?
bASIC's will accept the flat 4-pin molex that comes off (almost) every PSU - so no.

I will add one caveat to this statement: considering the bASIC draws up to 120W (for now) I would not load a molex peripheral chain with multiple devices. The 18AWG wire is really not rated for more than 15A.

In this case you would need custom cables.

what do u mean by peripheral chain?   i could guess but i want to know exactly what u mean.
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
if we buy the psu's from bASIC's website would we need custom cables?
bASIC's will accept the flat 4-pin molex that comes off (almost) every PSU - so no.

I will add one caveat to this statement: considering the bASIC draws up to 120W (for now) I would not load a molex peripheral chain with multiple devices. The 18AWG wire is really not rated for more than 15A.

In this case you would need custom cables.
legendary
Activity: 4592
Merit: 1851
Linux since 1997 RedHat 4
if we buy the psu's from bASIC's website would we need custom cables?
bASIC's will accept the flat 4-pin molex that comes off (almost) every PSU - so no.
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