Topic: [WTS] ATX PSU to 2.5 or 2.1/5.5mm 12V coaxial plug power cables [New Product!!] - page 9. (Read 68367 times)

I would be statisfied with a gridseed cable with 5-10 plugs ... 1 m size.

... need at least 10-20 of them ...

My preference is 15-18 leads per PCI-E cable, and scrypt only.  I would not run these in dual mode.  Having an inline fuse would be useful in case of mistakenly enabling dual mining mode.

As for length, I'd go up to 1 meter for flexibility. With a single cable going from 20cm and scaling up in groups of 2s or 4s to 100cm.

I'm ready to purchase enough for 50 miners right away, and likely for another 100+ miners in the near future.

Very interested in cables to match up with spotswoods cases.

My preference would be (just to throw it out there) 5 or 10 coaxial plugs per PCIE with spacing as per the spots wood design (scrypt only!)

I would also buy a double headed 5v coaxial for the two USB hubs required for each set of 20 miners. I would also buy a micro USB 5v cable for the TP link controller device.

Then all the components needed for a set of 20 miners and accessories could run from one ATX PSU - PERFECTO!

I too will be looking to initially power about 20 Gridseed miners, 2 controllers and 2 USB hubs. Scrypt only with some type of safety against an accidental dual mode setup would be ideal.

Would like to use a Corsair AX series modular power supply with the cables plugged directly into the power supply.

I think 10 units per PCIe cable should be considered. I believe this would allow me to run 80 Gridseed miners off an AX1200 using less than 800W for the miners?

I like the idea that miaviator had with an in-line fuse simply for protection for use with a scrypt-only cables.  It would be nice to have a separate cable at 5V to power a few USB hubs as well.
I understand that it would get very time consuming to have custom cables for everyone so I support whatever decision you come up with. I had originally thought I would use dual-mode for a little while but have changed my mind on that.

Ideally I would like to power 20 devices in scrypt only mode plus a few usb hubs at 5v per power supply.  As per our previous PM conversation I am ready to order cables to power 40 units whenever yo start production of these.

Edit: Just thinking out of the box, for SCRYPT ONLY I wonder if a cctv power distribution box would work 12V and 1A per channel. At $43 to power 9 devices would be very economical.
http://www.videosecu.com/9-channel-12v-dc-distributed-power-supply-box-pwd91sm/

I agree focus on scrypt only mode as far as your pwer load concerns I think using them to dual mine will be pointless in about 30 days anyway. TO bad we cant get them to just run off a USB cable in scrypt only mode the power draw is so low and the fan probably draws most of it and in scrypt mode these things dont even get warm

I think you should make your designs based on scrypt mode only... Gridseeds are vary unstable in dual mode, and most miners are only using scrypt mode anyway

Maybe you can produce to 2 types of cables:

1. Dual-mode cable, 1 pcie split to 3 coaxial plug

2. scrypt-mode cable, 1 pcie may split to more than coaxial plugs since scrypt mode draws 7w only for a single device.


I have 20 gs miners and find the GS PSU from China unsafe, I would like to order some scrypt-mode cable and use regular PC PSU.

It really depends what mode you are running in. For scrypt only mode 3 plugs is actually way underpowered as you can get just about 20 devices @10W on a single PCIe cable.

The 18AWG wire can handle 10A and the minifit pins/housings are rated for 9A. Theoretically you can pull 9Ax12V=108W per wire pair. I would not push it that far but safely getting 80W per wire pair has been done ad infinum by miners. This gives 80W*3pairs=240W per PCIe cable.

Those numbers from the PCIe spec are really safe and are meant to protect the graphics card and motherboard which we will not be using in this instance.

Are you sure 3 leads isnt too many?  I thought 8 pin PCIe was 150 watts max.  3 X 60 is 180.  Seems like 2 per pcie lead, is optimal if you want to run dual mode.

Thanks for the thoughts gents. Let me think on them and see if I can design something that can work with the dual power nature of these devices.

I do agree that BTC mining is limited with these units but all I need is someone who gives dual mining a try not thinking and causes a fire. That doesn't sit well in my stomach. I like the fuse idea but let me see if it is realistic and doesn't add too much to the cost.

Keep the ideas coming.


EDIT:  I see a lot of interest with the gridseed cases from Spotswood. Should I favor having cables with runs of 5 plugs so that will fit well with his case? I would think so as 20 miners would only need 1 or 2 PCIe connections. What do you guys think?

I would propose a fused line that could hold 10 cables per lead and would blow the fuses if used in dual mode.

Also if you make 3 per lead people can ASSUME THEIR OWN RISKS and use: http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=2.5mm%20barrel%20splitter

A 2.5 barrel multiplier to power 10 per PCI-E lead

It wouldn't hurt to prep a bunch of molex to single device plugs as well for the cheap cheap PSU's.

Thx, for your engagment ...

concerning the plug I would use 2.5-5.5mm as it seems to be the official one, I'm using both type 2.1 and 2.5 successfully ...

how many cables can be fit in a standard psu? .... I think around 6 so this will leave us with 6 * 3 connections .... 18 ...

Either we get a way to connect more of those cable to one psu or ... we would have to over buy psu's ...

I would suggest at least a 5 plug cable ... as standard

a standard 650Watt PSU could easily hold 40 miners .... powered for scrypt mining ...

in maybee 2 weeks it will be 99% that only run scrypt ...

Hello and Welcome Gridseed miners!


This recent popularity in my work due to these interesting devices has in two days already surpassed my capacity to efficiently complete orders.

This stems from two distinct aspects, (1) the gridseed device has effectively two different running modes that have vastly different power thresholds (10W vs. 65W) and (2) the custom nature of my work yields orders that are just variations of each other but with slightly different measurements.  The power issue means that I cannot make very 'dense' cables of up to 20 units per PCIe connector because if they are run in dual mode a fire will ensue. The second point is more easily dealt with by standardizing gridseed cables.

Instead of just turning tail and hiding I want to engage the mining community by developing a 'standard cable' for gridseed's that will ease manufacturing and allow me to efficiently get these products into your hands. Custom orders could still be done but will have an extended queue while I work to create as many standard cables as possible.

So my thoughts on this are to basically have a single cable type with set measurements and connectors. My first draft of this would be a PCIe adapter with three plugs around 3ft in length with a 6in pitch (distance between plugs). The PCIe connector will be male so it has the most compatibility with ATX PSUs and the DC plugs will be 2.5mmID x 5.5mmOD. There has been some discussion that 2.1mmID plugs fit but since I do not have a device handy I cannot verify.

I would like to solicit comments on my proposal and draft cable from you the miners. Does this sound like something you can get behind in helping me help you? Please leave your comments and let's get this finalized so that I can start churning out these cables and get these orders done. Thanks

I will post any later updates in this message.

PM'ed too need ...

some octopus cables with 2.1 or 2.5 - 5.5mm plugs ... around 1 meter ... preferably 10 at one connection ... ^^

...

Pmed about the 12V 2.5/5.5mm DC plug prices. They look like good quality cables as well.

I see that now as I was blindsided last night with renewed interest.  Thank you for that. 

You are featured in my guide: https://bitcointalksearch.org/topic/guide-gridseed-gc3355-5-chip-setuppowerwindowslinuxrpi-by-unicornhasher-494625

Keep up the quality craftmanship!

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