Now that usb sticks are being sold by sidehack here is a new usb hub thread. - page 7.

jsays

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Activity: 78

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Quote from: marousi on July 01, 2018, 02:25:21 AM

"10 Compacs on a single 10 port A-300 hub" - can you run these (all 10) at 325 mhz on that hub?

Probably not.

If memory serves, that guy is 60W...so if running all 10 is the goal, you'd be looking at ~150MHz ea. And, that's only if you can get the Vcore dialed in near just right across all 10.

I think you'd be better of trying to get ~5 running at 250MHz ea. on that hub.

Good luck.

marousi

newbie

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"10 Compacs on a single 10 port A-300 hub" - can you run these (all 10) at 325 mhz on that hub?

pasuljeffreys

newbie

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Quote from: hurricandave on February 05, 2017, 03:42:42 PM

https://i.imgur.com/Qk3Sud2.jpg

Old picture but this is still what I'm running. 10 Compacs on a single 10 port A-300 hub I believe it's a relabeled https://www.amazon.com/Sipolar-USB2-0-Bitcoin-Indicator-Powered/dp/B01K4LYX7U/ref=sr_1_1?ie=UTF8&qid=1486327095&sr=8-1&keywords=sipolar+A-300

$5 Purex 120mm case fan using a home made dc barrel to molex adapter 12vdc wall wart powering a $5 evercool single fan controller.

RasberryPi3 is now updated with Pixel and I followed Jake36 post to install novak's cgminer-gekko-rev2.

What is your transfer throughput like? AQre all those 15 Gh/s miners? I am having issues with 6 not sending any more than 45 Gh/s on average through...

Pj.

pasuljeffreys

newbie

Activity: 9

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Entirely likely a noob question here but...

I have the siploar 10 port hub and 6 2Pac miners... When I had 4 in the hub, the time to payout (0.001 BTC) was 1 year, when I plugged the latest 2 in, it went up to 1 year 3 months!!!

The average usage ranges from 7GH/s - 16 GH/s on all 6, but it seem to not be helping in any way the output.

I also seemt o have no upload speeds now on the computer so wondering if I broke something or overloaded something?

Pj.

CreativeReef17

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Activity: 60

Merit: 3

I recently acquired a Block Erupter 49 port USB 2.0 Hub Rev 2.00 (Red board) to use with my 2PAC and Terminus pod that I purchased from sidehack as well as some miscellaneous USB miners. Finding information about these hubs are more elusive than I imagined. Does anyone know of a support thread or other resource to post my questions to?

1) Who was the OEM/Primary distributor for these back in the day? Asicminer? Eyeboot? Someone else?
2) The unit has what appears to be a 25A automotive style fuse. Does that mean that is fused for 12V 25A?
3) 25A would only allow 500mA per port with only 500mA extra to handle startup surge. Does that seem right?
4) Is it likely that the traces would allow more power than 500 mA if the board's total power rating is not exceeded?

More goal is to run more 2PAC and other USB miners as the price is right and I acquire them. I should have asked what fuse was on the board since I have read about other 49 port Block Erupter hubs having 50 or 70A fuses. Does it seem likely that I can run a few higher-power usb devices like 2PAC or Moonlanders on this board?

Thanks for any advise or pointers to better threads.

CreativeReef

klintay

legendary

Activity: 1775

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Value will be measured in sats

Quote from: nissarup on April 17, 2018, 09:48:13 AM

I have the same Anker hub as you have. I cant recommend it. At least not for mining. I had trouble getting miners to work consistently and I had to replug them to get them started whenever I had to reboot. It also doens't work with Raspberry Pis.

I just bought the 10 port Sipolar hub. It just works. Both with the miners and the Pi.

yeah 10 port sipolar hub is nice, good build and quality. also is wall mountable. for 65 usd that is not bad at all.

pasuljeffreys

newbie

Activity: 9

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Perfect, looks like an earlier upgrade than planned it is then.. Cheesy

Pj.

nissarup

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I have the same Anker hub as you have. I cant recommend it. At least not for mining. I had trouble getting miners to work consistently and I had to replug them to get them started whenever I had to reboot. It also doens't work with Raspberry Pis.

I just bought the 10 port Sipolar hub. It just works. Both with the miners and the Pi.

pasuljeffreys

newbie

Activity: 9

Merit: 0

Yeah, I was probably going to go with the 10 port hub a few on here seem to be using anyway... Looks like i`ll just have to make the switch sooner Cheesy

Pj.

sidehack

legendary

Activity: 3416

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Curmudgeonly hardware guy

Sounds like the common factor is your hub. It's probably weak, or at least has weak wiring for internal 5V distribution. When a new stick is plugged in, the current draw to light it up probably causes a sag on the internal 5V that trips up one of the three sticks.

Or there's some signal issue with your hub that's misbehaving with multiple USB2 devices (which these are).

Have you looked around to see if other people had problems with that model hub?

pasuljeffreys

newbie

Activity: 9

Merit: 0

Ah, sorry, they are all 2PACs, just from differently named suppliers through Amazon (BitMiner Joe, ZLR Inc and I can`t find the 3rd for some reason). It also seems that it isn`t consistent which one drops... If I remove any of the sticks, to leave 2, then the 2 remaining return to around 10Gh/s... But they are all the same 2PAC usb stick... It`s just when I have all 3 in the hub that it happens... Plug the 3rd into another USB port, even a USB2 port, all is as it should be again...

Pj.

sidehack

legendary

Activity: 3416

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Curmudgeonly hardware guy

What is the third stick? Your previous post makes it sound like you have two 2Pacs and one of something else.

pasuljeffreys

newbie

Activity: 9

Merit: 0

Not sure, but I am new to the whole mining thing..

I checked last night and I am definitely plugged in to the USB 3 ports, but whenever I plug the 3rd mining stick into the Hub (also USB 3), I get 2 x xxGh/s and the third drops down to around 6Kh/s...

I don`t understand what I`m doing wrong with things...

Pj.

cozk

hero member

Activity: 812

Merit: 500

What is this ? 2013 ?

pasuljeffreys

newbie

Activity: 9

Merit: 0

Have a quick question as still relatively new to mining things...

I have this hub: https://www.newegg.com/Product/Product.aspx?Item=9SIADA26E73842

Which works fine with 2 of the GhekkoScience ASIC miners in it (2 x https://smile.amazon.com/gp/product/B06XBWK2W5/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 and 1 similar but from a different supplier on Amazon)...

But whenever I plug my 3rd miner into it, the 3rd one drops from 15Gh/s to around 20Mh/s... Am I doing something stupidly noob with things? The USB should be able to handle it shouldn`t it?

I aim to upgrade things eventually to the 10 port one mentioned in this thread a few times, but for now, 3 of the miners in this Hub should work shouldn`t they?

I have a small desk fan which is keeping the 2 in there now nice and cool so I really want to be able to plug the 3rd in in there also as currently I have to have it in one of the other PC USB ports in order to keep it running at 15Gh/s but this means I don`t have it close to a fan and so is going to overheat a lot...

Anybody know what I`m doing wrong or able to point out the probably obvious thing to everybody else thing I haven`t likely done to run all 3?

*Edit*
I may be a complete muppet and have this plugged in to a USB2 port... I will need to wait until I get home to confirm but this would likely result in the above issue wouldn`t it with the lower transfer rates?

Pj.

CreativeReef17

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Activity: 60

Merit: 3

Quote from: QuarterMaster on March 29, 2018, 11:35:55 PM

Not sure anyone has cracked open the smaller 25W unit to see how many voltage regulators it has. The 60w one has 3 shared between 2 ports, 2 ports, 3 ports so we know how it works. The 25w may only have 1 regulator that splits up the current between all ports which could mean drops for the 2Pac sticks if running more than 1. All depends on how they are set up.

Thanks, I probably will just stick to what works but I was trying to save some money.

CreativeReef

klintay

legendary

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Value will be measured in sats

Quote from: QuarterMaster on March 29, 2018, 11:50:13 PM

So this is what I am using to run 6 at 243.75Mhz for about 150GH/s - 85 Watts at the wall.
I also put small fans on each stick.
https://imgur.com/a/uJbPg

wow nice rig! It is the 10 port sipolar hub right? We just got new stock in yesterday, they are available for sale here:
https://www.eyeboot.com/sipolar-10-port-usb-hub.html

BTW, We just started a USB stickminer sale:
https://bitcointalksearch.org/topic/worldwide-gekkoscience-2pac-bm1384-stickminer-order-thread-in-stock-now-3316001

Limited offer while stocks last!

Moderator's note: This post was edited by frodocooper to trim the quote from QuarterMaster.

QuarterMaster

newbie

Activity: 28

Merit: 2

So this is what I am using to run 6 at 243.75Mhz for about 150GH/s - 85 Watts at the wall.
I also put small fans on each stick.
https://imgur.com/a/uJbPg

Moderator's note: This post was edited by frodocooper to remove inline image tags.

QuarterMaster

newbie

Activity: 28

Merit: 2

Quote from: CreativeReef17 on March 25, 2018, 09:18:16 PM

Quote from: NotFuzzyWarm on February 20, 2017, 07:15:34 PM

As I discovered with my 7-port, 60W charging hub from Plugable -- pop it open and look at how the power is distributed.

On the Plugable, it takes 12vdc in and has 3 buck regulators taking that down to 5v for the USB plugs. That said... 1 regulator feeds ports 1 & 2, the 2nd regulator feeds ports 3 & 4, the 3rd feeds ports 5-7. See where this is going?

Given that you can only use 3 ports, do you still need 60W or is the 25W unit acceptable. I would be using the Pluggable 7 port hub to run a couple 2PAC sticks and I can order 2 Pluggable 25W units for the price of the 60W unit.

CreativeReef

Not sure anyone has cracked open the smaller 25W unit to see how many voltage regulators it has. The 60w one has 3 shared between 2 ports, 2 ports, 3 ports so we know how it works. The 25w may only have 1 regulator that splits up the current between all ports which could mean drops for the 2Pac sticks if running more than 1. All depends on how they are set up.

QuarterMaster

newbie

Activity: 28

Merit: 2

Quote from: avulsionist on March 28, 2018, 06:26:37 PM

Thanks for this. Have the same hub.
Question: Any luck chaining them together? I have 4 2pac's and have been trying to get the 4th to keep running but no matter what powered hub I try it runs for a few hours then stops.

I ask because I am using a RPi W with one USB port.

Thanks

No, running on a windows server so plenty of USB ports. I do have one of these that I run 3 Pod miners through (non powered) and it works great.
https://www.amazon.com/StarTech-com-Mountable-Rugged-Industrial-Port/dp/B003AVPUZG
(cracked open the above linked hubs and they only have 2 regulators in them so 2 sticks max no matter how much power you put into it)

I would try a good non powered 2.0 hub plugged into your RPi then 2 of the Plugables powered hubs into that - 2 sticks each Plugable hub. If you already have another powered hub then try both of those into the basic hub, see if that gets you any farther without a drop.

Topic: Now that usb sticks are being sold by sidehack here is a new usb hub thread. - page 7. (Read 47315 times)