Now that usb sticks are being sold by sidehack here is a new usb hub thread. - page 13.

philipma1957

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Quote from: anorganix on May 08, 2017, 01:20:56 AM

Hi guys,

A little bit off-topic and probably silly question: do you think a laptop cooler would be okay to use as a solution for the 2Pacs?
I was thinking to sit the hub & sticks on this Deepcool N200 cooler, I'm assuming it would cool better than a normal USB fan.

so lay hub on its side I think it is not ideal as I think the air moved by the cooler will not flow fast due to small grill. I found one on ebay for 22 usd

http://www.ebay.com/itm/Deepcool-N200-USB-Cooling-Stand-Pad-cooler-mat-For-Laptop-Notebook-10-15-6-/151877092837?

seems to me this would work better and it is 18 usd

http://www.ebay.com/itm/Holmes-10-inch-Personal-Size-Box-Fan-HABF120W-/142100873644?

better yet this one is 9.99

https://www.bedbathandbeyond.com/store/product/comfort-zone-reg-4-inch-cradle-high-velocity-dual-powered-fan/3249300?

in2tactics

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Quote from: anorganix on May 08, 2017, 01:20:56 AM

Hi guys,

A little bit off-topic and probably silly question: do you think a laptop cooler would be okay to use as a solution for the 2Pacs?
I was thinking to sit the hub & sticks on this Deepcool N200 cooler, I'm assuming it would cool better than a normal USB fan.

Why do you not want to use what most people use?

https://www.amazon.com/gp/product/B003XN24GY/

anorganix

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Per aspera ad astra

Hi guys,

A little bit off-topic and probably silly question: do you think a laptop cooler would be okay to use as a solution for the 2Pacs?
I was thinking to sit the hub & sticks on this Deepcool N200 cooler, I'm assuming it would cool better than a normal USB fan.

in2tactics

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@klintay Looking nice!

klintay

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Value will be measured in sats

Testing out the Eyeboot 19 Port 40 amp USB 3.0 hub;

1 USB miner running @ 200 MHz

Going to try with 16 x USB miners next...

Download link for a setup guide in pdf format as well;
http://s000.tinyupload.com/?file_id=46022857685987231669

***WARNING***
DO NOT SET FREQUENCY ABOVE 100MHz WITHOUT ADDING ADDITIONAL COOLING
***WARNING***

in2tactics

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Quote from: NotFuzzyWarm on May 04, 2017, 09:09:56 AM

Been there, tried that. Even with the sticks at OEM default of 100MHz it would not do it. Tweaking Vcore and speed, still no go with 3 sticks so forget about running more. For hubs NOT designed expressly for stick miners it seems that any power rating given is more of a suggestion than reality if you actually want 5v out @ rated power per-port.

My guess is that yes, a normal or a 'charging' hub *may* be able to provide rated wattage but it will NOT be with 5vdc coming out but instead the voltage will be lower. Maybe charging circuits don't care but the sticks do. The regulator in the sticks cuts off when incoming voltage goes below 4.4vdc. Even at the default 100MHz sticks were dropping out so....

That probably explains why I was only seeing 4.86v on each stick. How hard are you pushing your 2PACs? I was hoping to expand to 6x 2PAC, but since that seems impossible on this hub, I might as well push the ones I have a little harder.

NotFuzzyWarm

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Quote from: in2tactics on May 04, 2017, 08:07:03 AM

Quote from: NotFuzzyWarm on May 04, 2017, 07:53:53 AM

Quote

The Plugable 60W hub that has been suggested looks also interesting, however I doubt whether it will be sufficient to power the 5 overclocked miners 24/7.

That specific hub actually is maxed running just 3 sticks and you MUST make sure each is plugged in so it is 1 stick for each of the 3 regulators in it. Just will not have enough power any other way so more than 3 on it is out of the question.

I bet you could run 6x 2PAC if you set the voltage to the lowest value and only run them at 175MHz. You would only pull about 6.2W per compaq which should keep it well below each regulator's maximum and you would still get about 115.2GH/s overall.

And the House wins.
Care to play again?

Been there, tried that. Even with the sticks at OEM default of 100MHz it would not do it. Tweaking Vcore and speed, still no go with 3 sticks so forget about running more. For hubs NOT designed expressly for stick miners it seems that any power rating given is more of a suggestion than reality if you actually want 5v out @ rated power per-port.

My guess is that yes, a normal or a 'charging' hub *may* be able to provide rated wattage but it will NOT be with 5vdc coming out but instead the voltage will be lower. Maybe charging circuits don't care but the sticks do. The regulator in the sticks cuts off when incoming voltage goes below 4.4vdc. Even at the default 100MHz sticks were dropping out so....

Cryptonomist

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Quote from: in2tactics on May 04, 2017, 08:07:03 AM

Quote from: NotFuzzyWarm on May 04, 2017, 07:53:53 AM

Quote

The Plugable 60W hub that has been suggested looks also interesting, however I doubt whether it will be sufficient to power the 5 overclocked miners 24/7.

That specific hub actually is maxed running just 3 sticks and you MUST make sure each is plugged in so it is 1 stick for each of the 3 regulators in it. Just will not have enough power any other way so more than 3 on it is out of the question.

I bet you could run 6x 2PAC if you set the voltage to the lowest value and only run them at 175MHz. You would only pull about 6.2W per compaq which should keep it well below each regulator's maximum and you would still get about 115.2GH/s overall.

Thank you for your reply. Is this solution something that would work reliably 24/7, or can I expect a lot of interruptions? I'm fairly new to bitcoin mining. I've used in the past an Orico 10 port usb 2.0. But even with only one compaq attached I could not get the speed of that compaq above 12 GH/s. So that was quite disappointing. So now I'm looking for a setup that has been tested before and that is very stable.

Cryptonomist

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Quote from: NotFuzzyWarm on May 04, 2017, 07:53:53 AM

Quote

The Plugable 60W hub that has been suggested looks also interesting, however I doubt whether it will be sufficient to power the 5 overclocked miners 24/7.

That specific hub actually is maxed running just 3 sticks and you MUST make sure each is plugged in so it is 1 stick for each of the 3 regulators in it. Just will not have enough power any other way so more than 3 on it is out of the question.

Thank you for your reply. So it is not advisable to run 5 on them. I've also read your previous posts, it does indeed not look very good. Then my options are using two Plugable hubs or one more powerful one.

in2tactics

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Quote from: NotFuzzyWarm on May 04, 2017, 07:53:53 AM

Quote

The Plugable 60W hub that has been suggested looks also interesting, however I doubt whether it will be sufficient to power the 5 overclocked miners 24/7.

That specific hub actually is maxed running just 3 sticks and you MUST make sure each is plugged in so it is 1 stick for each of the 3 regulators in it. Just will not have enough power any other way so more than 3 on it is out of the question.

I bet you could run 6x 2PAC if you set the voltage to the lowest value and only run them at 175MHz. You would only pull about 6.2W per compaq which should keep it well below each regulator's maximum and you would still get about 115.2GH/s overall.

NotFuzzyWarm

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Evil beware: We have waffles!

Quote

The Plugable 60W hub that has been suggested looks also interesting, however I doubt whether it will be sufficient to power the 5 overclocked miners 24/7.

That specific hub actually is maxed running just 3 sticks and you MUST make sure each is plugged in so it is 1 stick for each of the 3 regulators in it. Just will not have enough power any other way so more than 3 on it is out of the question.

Cryptonomist

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Dear fellow bitcoin mining enthousiasts,

I've recently bought 4 Gekkoscience 2Pac's. I would like to use them together with the Gekkoscience Compac I already had. So for the moment I'm looking for a suitable powered usb hub that ships to Europe and that is compatible with the laptop ( runs Ubuntu server 16.04 LTS) I use for the bitcoin full node. The laptop is a relative old model (about 5-6 years old) and has only USB2.0 ports.

I've seen a mining setup on this forum that uses a Sipolar A-300. Is this a good hub? I've read comments about this hub that the amps per port are a bit low. Would this hub allow me to overclock the five miners?

An alternative hub I'm considering is the Sipolar A-210 (https://www.alibaba.com/product-detail/Industrial-High-Power-USB-HUB-20ports_60343874449.html?spm=a2700.7724838.0.0.ZsEEgx). This hub should deliver 1A per port. Has anyone of you experience with this hub?

The Plugable 60W hub that has been suggested looks also interesting, however I doubt whether it will be sufficient to power the 5 overclocked miners 24/7.

Or, do you have other suggestions that would allow for overclocking, and are acceptable for my budget (at most 100 euro or about the same in dollars)?

Thank you in advance.

Sincerely

anorganix

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Thank you both for your help, it's much appreciated.
Happy hashing!

NotFuzzyWarm

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Evil beware: We have waffles!

Quote from: in2tactics on May 03, 2017, 10:53:51 PM

I bought my Plugable based on your description of the power distribution. For that, I thank you. I have 3x 2PAC at 175 MHz each on ports 1, 3, and 5. They are humming along happily for a total hash-rate of ~57.5 GH/s.

Yer quite welcome Cheesy

in2tactics

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Quote from: NotFuzzyWarm on May 03, 2017, 10:23:06 PM

Quote from: in2tactics on May 03, 2017, 10:00:53 PM

Quote from: anorganix on May 03, 2017, 08:22:36 AM

I'm not able to find the Superbpag hub to ship to Europe. Sad

The Eyeboot 19-port is too large for me as I won't expand the stick mining farm too much, I'm looking for a smaller powered hub to connect directly to my PC (no RPi will be used).

What are my choices for 3 x 2Pacs (I'll run them at 200 MHz)?
Thanks!

I use the Plugable 7 port 60W usb hub.

https://www.amazon.com/Plugable-Charging-Adapter-Support-Android/dp/B00L2LK164/

I use that exact same Plugable hub. Not sure if you already saw/applied this but bears repeating if someone does not know about how many charger hubs distribute power per-port(s). https://bitcointalksearch.org/topic/m.17921042

Works great but gotta know it's quirks.

One of these days I will take my 2nd one and hard-wire the port power feeds to a single 5V 15A supply but as the old saying goes: The cobblers children have no shoes...

I bought my Plugable based on your description of the power distribution. For that, I thank you. I have 3x 2PAC at 175 MHz each on ports 1, 3, and 5. They are humming along happily for a total hash-rate of ~57.5 GH/s.

NotFuzzyWarm

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Evil beware: We have waffles!

Quote from: in2tactics on May 03, 2017, 10:00:53 PM

Quote from: anorganix on May 03, 2017, 08:22:36 AM

I'm not able to find the Superbpag hub to ship to Europe. Sad

The Eyeboot 19-port is too large for me as I won't expand the stick mining farm too much, I'm looking for a smaller powered hub to connect directly to my PC (no RPi will be used).

What are my choices for 3 x 2Pacs (I'll run them at 200 MHz)?
Thanks!

I use the Plugable 7 port 60W usb hub.

https://www.amazon.com/Plugable-Charging-Adapter-Support-Android/dp/B00L2LK164/

I use that exact same Plugable hub. Not sure if you already saw/applied this but bears repeating if someone does not know about how many charger hubs distribute power per-port(s). https://bitcointalksearch.org/topic/m.17921042

Works great but gotta know it's quirks.

One of these days I will take my 2nd one and hard-wire the port power feeds to a single 5V 15A supply but as the old saying goes: The cobblers children have no shoes...
That and at work don't have my usual time for um, other things... For the past week or so really into trying to get a handle on why our $500k laser test bed system's beam is wandering... Not good when trying to hold less than 2µm position tolerances... Narf

in2tactics

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Quote from: anorganix on May 03, 2017, 08:22:36 AM

I'm not able to find the Superbpag hub to ship to Europe. Sad

The Eyeboot 19-port is too large for me as I won't expand the stick mining farm too much, I'm looking for a smaller powered hub to connect directly to my PC (no RPi will be used).

What are my choices for 3 x 2Pacs (I'll run them at 200 MHz)?

Thanks!

I use the Plugable 7 port 60W usb hub.

https://www.amazon.com/Plugable-Charging-Adapter-Support-Android/dp/B00L2LK164/

anorganix

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Per aspera ad astra

I'm not able to find the Superbpag hub to ship to Europe. Sad

The Eyeboot 19-port is too large for me as I won't expand the stick mining farm too much, I'm looking for a smaller powered hub to connect directly to my PC (no RPi will be used).

What are my choices for 3 x 2Pacs (I'll run them at 200 MHz)?

Thanks!

spazzdla

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Quote from: murasame2003 on February 13, 2017, 12:52:43 PM

Quote from: btckess on February 13, 2017, 10:59:23 AM

My attempt at upping the power to my soon to be arriving 2pacs on the cheap. I'm reusing stuff I already had on hand. I am waiting on my Block Erupters to sell on eBay to reclaim a 5v 40 amp led "meanwell" power supply. My plan is to use Monoprice usb extenders and some 18GA wire to hook up the power of the meanwell and data of a cheap 10 port hub (also hooked up to the meanwell) I hope to get these guys running at 3 to 3.5 amps per.

I slice the jacket and remove the red and black wire (verifying that they are the +5 and ground on the usb ports) Cut the red wire and cap the side coming from the usb hub. Solder in the new 18GA wire +5 and ground cables. Verify no shorts and wrap the solder joints on opposite sides of the usb cable.

I cut some 3/4 wood dowel and using a saw and 1/2 drill bit made usb "Holders" they are spaced 2" apart to allow cooling.
I plan on attaching these to the board that my power supply is mounted to and using hot glue attaching the usb "holders" to the wood dowel.
And then attaching cooling fans.
Will Post more pictures when I get it completed. Just wanted to throw this out in case it helps others.

Looking forward to updates and pictures of your setup.

I did something very similar to this idea and finally got all my miners mining at once Cheesy

.

xxooss

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Thanks NFW!

Quote from: NotFuzzyWarm on April 19, 2017, 07:10:01 PM

Quote from: xxooss on April 19, 2017, 04:11:54 PM

I wanted 2.0 because I was reading one of sidehack posts sayinng 2.0 was the only way to go since there was no advantage to anything else. Or did I not get the gist of his post...

No, you got it right. The most common USB3.0 ports and hubs can provide a little more current than 2.0 allows but folks have had issues running sticks directly from 3.0 hubs. Since we don't care about the higher speeds 3.0 can run that leaves main requirement as...

The need to simply use a hub that will supply more 5vdc power such as ones rated for 2.1A and higher charging. Look for BC2.1 as I recall. They normally used to power tablets/phablets and the better ones will happily provide more than just 2.1A -- but -- look at what and how many ports it can feed that power to at the same time.

Topic: Now that usb sticks are being sold by sidehack here is a new usb hub thread. - page 13. (Read 47310 times)