ASICMiner USB group buy- orders closed, pay for extra! - page 53.

antony

newbie

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Quote from: arklan on May 27, 2013, 04:38:40 PM

the hub i'm using in that picture is the much discussed 12 port usb hub from saitechi. it wouldn't power more then 3 erupters. i've got an anker 10 port usb 3.0 now (and two more en route) running five of them plus the fan and my cell phone charger no problem.

anyone know a readily available USB hub which support individual port port power 'on' and 'off' using software such as usb-ctrl.c? I have seen mentions of these but yet to find an easily available model. I guess it would be ideal for Block Erupter USB.

http://askubuntu.com/questions/149242/is-it-possible-to-power-up-ports-on-a-usb-hub-from-ubuntu

thoughtcourier

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Activity: 96

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Quote from: LazyOtto on May 27, 2013, 05:32:35 PM

Quote from: thoughtcourier on May 27, 2013, 05:26:23 PM

So this is my first asic/fpga miner. Is there a quickstart guide?

- dl bfgminer
- configure bfgminer to target pool
- plug in
- profit

?

Pretty much.

Although,
1) while I've seen that cgminer is reported to work with these, I don't recall if the same has been said for bfgminer. (Due to other considerations, I'm intending to use MPBM.)

2) Reduce all power consumption as much as possible for maximum long term gains. Lots of people use a Raspberry Pi to meet this goal.

3) Don't expect much profit. It will be months, if ever, before these critters hit ROI at the price we've paid for them.

And regarding "?", are you intending to use a Linux or MS Windows machine? Different headaches depending on which way you swing.

I have newbuntu and XP. I'd prefer XP. I reckon there'll be some technical issues just like when I did gpu mining.

af_newbie

legendary

Activity: 2702

Merit: 1468

Quote from: arklan on May 27, 2013, 04:38:40 PM

the hub i'm using in that picture is the much discussed 12 port usb hub from saitechi. it wouldn't power more then 3 erupters...

Thanks. Amazon says that satechi hub is a 5V 2A hub.
So I guess we have to assume erupters are pulling more than 500mA or the hub specs are fudged.

Good to know. Better stick to 3.0 hubs then.

tkone

full member

Activity: 168

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can you check if they work with bitminter java client?
lol

im using mac with bitminter

arklan

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Activity: 1778

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Quote from: SilentSonicBoom on May 27, 2013, 06:50:35 PM

Specifically which anker 10 port usb 3.0 hub are you using? Could you please provide a website link to the item you have if available? Thank you.

Quote from: arklan on May 27, 2013, 04:38:40 PM

the hub i'm using in that picture is the much discussed 12 port usb hub from saitechi. it wouldn't power more then 3 erupters. i've got an anker 10 port usb 3.0 now (and two more en route) running five of them plus the fan and my cell phone charger no problem.

http://www.amazon.com/Anker%C2%AE-Uspeed-10-Port-Adapter-Chipset/dp/B005NGQWL2

SilentSonicBoom

sr. member

Activity: 336

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Specifically which anker 10 port usb 3.0 hub are you using? Could you please provide a website link to the item you have if available? Thank you.

Quote from: arklan on May 27, 2013, 04:38:40 PM

the hub i'm using in that picture is the much discussed 12 port usb hub from saitechi. it wouldn't power more then 3 erupters. i've got an anker 10 port usb 3.0 now (and two more en route) running five of them plus the fan and my cell phone charger no problem.

arklan

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Activity: 1778

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Quote from: LazyOtto on May 27, 2013, 05:41:58 PM

ty, arklan.

So there's your solid software info, thoughtcourier.

arklan reports bfgminer running, perhaps with some hoops to jump through, on Windows.

friedcat's statement on the official stats thread says cgminer works. (friedcat probably used Linux, is my guess.)

i should clarify: it's the latest exe from git, with options -G -S all

course the -G just disables video card mining, so may not be needed in your case. i have a strange Franken-PC with an amd card AND an nvidia one, so mining on one of those but not the other presented complications.

af_newbie

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Activity: 2702

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Quote from: SilentSonicBoom on May 27, 2013, 01:42:00 PM

So does this hub http://www.amazon.ca/Adapter-Anker%C2%AE-Uspeed-Button-included/dp/B005NGQWL2/ref=sr_1_15?ie=UTF8&qid=1369673158&sr=8-15&keywords=usb+3+hub run 10 usb miners at full power with a fan to keep them cool? What are your thoughts on this one at http://www.amazon.com/Satechi-10-Port-Port-iPad-Charging/dp/B00B9KOCYA/ref=zg_bs_281413_23 which states 5V5A? Can 9 be safely run? Which one would be better? Thanks for your help.

Quote from: af_newbie on May 27, 2013, 12:17:30 PM

Quote from: LazyOtto on May 27, 2013, 12:10:13 PM

But, on second thought, looks like the first one actually might power up to 19 devices.

Assuming 100% efficiency of converting 12v to 5v.

And, that I did the math correctly to convert 12v4A to 5v9.6A.

What math?

The monoprice has 4A@5V power supply.
The anker one has 4A@12V power supply.

What is your point? Other than to disagree with yourself?

Quote from: LazyOtto on May 27, 2013, 11:58:32 AM

Quote from: af_newbie on May 27, 2013, 11:53:33 AM

USB 3.0 might be a better way to go

Irrelevant.

The USB miners will (I assume) self identify as USB 2.x devices. As such, the hub, if properly designed, will limit each device to 500mA. Which isn't the problem. Aggregate power draw is the issue.

That other hub you linked has the same constraint of 4A max. Same power envelope as the first one. Seven miners max. And the form factor looks far less conducive to cooling.

The anker one should deliver ~960 mA to each USB port.

Anyway, anyone run 10+ Erupters?

It will work for sure. Might be an overkill. You can get three 2.0 hubs for this price. From what I've see from the specs, 2.0 hubs should run 8 devices for sure (I don't have any h/w so I cannot verify).
Once we get them (or someone measures how much current the device draws) we'll know for sure if 20W hubs will run 10 Erupters.

LazyOtto

sr. member

Activity: 476

Merit: 250

ty, arklan.

So there's your solid software info, thoughtcourier.

arklan reports bfgminer running, perhaps with some hoops to jump through, on Windows.

friedcat's statement on the official stats thread says cgminer works. (friedcat probably used Linux, is my guess.)

arklan

legendary

Activity: 1778

Merit: 1008

Quote from: LazyOtto on May 27, 2013, 05:32:35 PM

Quote from: thoughtcourier on May 27, 2013, 05:26:23 PM

So this is my first asic/fpga miner. Is there a quickstart guide?

- dl bfgminer
- configure bfgminer to target pool
- plug in
- profit

?

Pretty much.

Although,
1) while I've seen that cgminer is reported to work with these, I don't recall if the same has been said for bfgminer. (Due to other considerations, I'm intending to use MPBM.)

2) Reduce all power consumption as much as possible for maximum long term gains. Lots of people use a Raspberry Pi to meet this goal.

3) Don't expect much profit. It will be months, if ever, before these critters hit ROI at the price we've paid for them.

And regarding "?", are you intending to use a Linux or MS Windows machine? Different headaches depending on which way you swing.

i actually couldn't get cgminer to work, but did get bfgminer (with luke's help) working. windows 7, btw.

LazyOtto

sr. member

Activity: 476

Merit: 250

Quote from: thoughtcourier on May 27, 2013, 05:26:23 PM

So this is my first asic/fpga miner. Is there a quickstart guide?

- dl bfgminer
- configure bfgminer to target pool
- plug in
- profit

?

Pretty much.

Although,
1) while I've seen that cgminer is reported to work with these, I don't recall if the same has been said for bfgminer. (Due to other considerations, I'm intending to use MPBM.)

2) Reduce all power consumption as much as possible for maximum long term gains. Lots of people use a Raspberry Pi to meet this goal.

3) Don't expect much profit. It will be months, if ever, before these critters hit ROI at the price we've paid for them.

And regarding "?", are you intending to use a Linux or MS Windows machine? Different headaches depending on which way you swing.

thoughtcourier

member

Activity: 96

Merit: 10

So this is my first asic/fpga miner. Is there a quickstart guide?

- dl bfgminer
- configure bfgminer to target pool
- plug in
- profit

?

LazyOtto

sr. member

Activity: 476

Merit: 250

Quote from: arklan on May 27, 2013, 04:38:40 PM

...
all? i don't expect it.
...

No, I wouldn't expect that to happen either.

Just too much to do and the day is too short.

So, practically, I'm hoping to get mine early next week.

turtle83

sr. member

Activity: 322

Merit: 250

Supersonic

Quote from: arklan on May 27, 2013, 04:38:40 PM

post office run for the canadian packages first

I hope Asian packages also.... Roll Eyes

af_newbie

legendary

Activity: 2702

Merit: 1468

Quote from: LazyOtto on May 27, 2013, 12:39:13 PM

Quote from: af_newbie on May 27, 2013, 12:28:55 PM

... The monoprice has 4A@5V power supply. ...

Where did you find that 4A@5V spec, please. I can't find it on the monoprice page.
That would be underpowered for a 24 port hub.

My bet is that it, also, has a 4A@12V power supply. If so, I would much prefer the monoprice over the anker due to the form factor for cooling.

Quote from: af_newbie on May 27, 2013, 12:28:55 PM

Do you have any Erupters running? I was wondering how much heat they generate. Do I need to worry about external fans to cool them down?

No. No one but friedcat and arklan have any running so far.

Report from friedcat is that they can overheat and stop running. But they recovered OK after cooling down. (And he may have done that test on one without a heat-sink. I don't recall.)

IIRC, arklan reported that they ran "too hot to touch" with pure passive cooling. After adding a small, I presume, fan they ran at a 'reasonable' to the touch level.

Look at of the images, it has a picture of the power supply.

http://www.monoprice.com/products/product.asp?c_id=103&cp_id=10307&cs_id=1030702&p_id=6436&seq=1&format=1#largeimage

Don't forget Kano, he has one.

So it seems like they are running hot.

We should plan to cool them with external fans. The monoprice hub might be better for cooling (like you said), but at 20W it might not be able to run more than 8 Erupters.
Maybe 10. It all depends on if they really pull 500mA or less.

arklan

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Activity: 1778

Merit: 1008

the hub i'm using in that picture is the much discussed 12 port usb hub from saitechi. it wouldn't power more then 3 erupters. i've got an anker 10 port usb 3.0 now (and two more en route) running five of them plus the fan and my cell phone charger no problem.

fyi, the fan in question is a 120mm fan.

regarding the box: i just got off the phone with dhl. i can go pick it up in the morning, they open at 9:30 am...

tomorrow's a busy day for me... post office run for the canadian packages first, then i have an appointment (unrelated) at ten, then off to DHL's office (which is an hour away, mind) THEN i can start packing everything... i also have a class in the evenings. oi...

i will, obviously, have time ot get some of them packed and ready to ship, which i'll take to the post office, but all? i don't expect it. wednesday though for sure.

finlof

hero member

Activity: 630

Merit: 500

Quote from: HTML5 Gordon on May 27, 2013, 01:47:49 PM

Quote from: LazyOtto on May 27, 2013, 12:59:22 PM

Quote from: af_newbie on May 27, 2013, 12:46:27 PM

Quote from: af_newbie on May 27, 2013, 12:28:55 PM

... The monoprice has 4A@5V power supply. ...

Look at of the images, it has a picture of the power supply.

I guess it'll all come down to the dimensions of the USB Eruptors.

If they are thin enough to leave a sufficient gap between them on a given 'inline' USB hub, then a single 120mm fan running at low speed would suffice to keep them cool enough.

Why not try some very short usb extender cables? It won't look as nice, but would allow you to space them out more.

check out extender cables here - http://www.monoprice.com/products/subdepartment.asp?c_id=102&cp_id=10303#1030304

HTML5 Gordon

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Activity: 184

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Quote from: LazyOtto on May 27, 2013, 12:59:22 PM

Quote from: af_newbie on May 27, 2013, 12:46:27 PM

Quote from: af_newbie on May 27, 2013, 12:28:55 PM

... The monoprice has 4A@5V power supply. ...

Look at of the images, it has a picture of the power supply.

I guess it'll all come down to the dimensions of the USB Eruptors.

If they are thin enough to leave a sufficient gap between them on a given 'inline' USB hub, then a single 120mm fan running at low speed would suffice to keep them cool enough.

Why not try some very short usb extender cables? It won't look as nice, but would allow you to space them out more.

af_newbie

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Activity: 2702

Merit: 1468

Quote from: LazyOtto on May 27, 2013, 12:25:09 PM

Quote from: af_newbie on May 27, 2013, 12:17:30 PM

Quote from: LazyOtto on May 27, 2013, 12:10:13 PM

But, on second thought, looks like the first one actually might power up to 19 devices.

Assuming 100% efficiency of converting 12v to 5v.

And, that I did the math correctly to convert 12v4A to 5v9.6A.

What math?

The monoprice has 4A@5V power supply.
The anker one has 4A@12V power supply.

What is your point? Other than to disagree with yourself?

Quote from: LazyOtto on May 27, 2013, 11:58:32 AM

Quote from: af_newbie on May 27, 2013, 11:53:33 AM

USB 3.0 might be a better way to go

Irrelevant.

The USB miners will (I assume) self identify as USB 2.x devices. As such, the hub, if properly designed, will limit each device to 500mA. Which isn't the problem. Aggregate power draw is the issue.

That other hub you linked has the same constraint of 4A max. Same power envelope as the first one. Seven miners max. And the form factor looks far less conducive to cooling.

"What is your point? Other than to disagree with yourself?"
My point, is to have a factually correct discussion.

Thank you for pointing out that I didn't notice the 4@5 versus 4@12 difference between the two units. My mistake.

"What math?"

Watts = Volts X Current (Amps)

If we stick with the same units, the monoprice claims 4A@5V. That spec will power 8 (minus overhead) miners.

If we must convert, for the anker at 4A@12V we must convert that that to xA@5V.

Solve for x.

-- edit

Which is what you did in order to agree with me: "The anker one should deliver ~960 mA to each USB port."

Sure.

Do you have any Erupters running? I was wondering how much heat they generate. Do I need to worry about external fans to cool them down?
Should not be much, but they will be very close together.

SilentSonicBoom

sr. member

Activity: 336

Merit: 250

Quote from: arklan on May 24, 2013, 08:58:20 PM

oh, and here's a shot of the boys working away. the LED blinking on a share found (green, btw) is surprisingly unintrusive.

and a shot of BFGminer. (i've yet to get cgminer working with them. waiting on kano's new code.)

What usb hub is this one arklan was using? Is it a 2.0 hub? Will a powered 2.0 hub be adequate or should we use a powered 3.0 hub instead?

Topic: ASICMiner USB group buy- orders closed, pay for extra! - page 53. (Read 165785 times)