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Author Topic: [Announcement] Block Erupter USB  (Read 237825 times)
Luke-Jr
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June 04, 2013, 10:16:34 PM
 #861

FWIW, seems my Emerald is dead already.
It's regressed to over 95% hardware errors despite having plenty of constant external cooling for a while now.
Hoping my Sapphire lasts longer...
...the Emerald had a heatsink?
Emeralds don't have heatsinks.

Update: Stuck it in the freezer for 15 mins, it got 1 good nonce immediately after I plugged it in, but doesn't seem to be working any better. Sad

Update 2: Looks like it might be related to the excess power demands of the Emerald... switching to another USB hub works fine for now.

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bitcoindaddy
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June 05, 2013, 12:23:43 AM
 #862

I also noticed that the things get so hot the silkscreened logo is tacky (sticky) to the touch. Not complaining - I love the little things.

I wonder if friedcat can tell us if the heatsinks shown in some of the original photos were custom made or can they be ordered somewhere?
The ones with the fins like this:

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June 05, 2013, 12:42:25 AM
 #863

I also noticed that the things get so hot the silkscreened logo is tacky (sticky) to the touch. Not complaining - I love the little things.

I wonder if friedcat can tell us if the heatsinks shown in some of the original photos were custom made or can they be ordered somewhere?
The ones with the fins like this:




Hell make your own... I took the metal plate off it just requires some screw holes drilled in the proper place and tapped out with a tap/die set.  It isn't glued or stuck to the board in anyway except for the plastic screws.  Or take an old cpu heat sink and grind it down... I am looking for an adequate one at this very minute.


Right now I have a 120 mm case fan blowing across my 2 and they are cold to the touch.

Naelr

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Naelr
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June 05, 2013, 12:43:39 AM
 #864

This has the worst Mhash/$ ratio of any asic device out there at 1.22Mh/s per $1. The runner up is asicminer's erupter blade at 1.87Mh/s per $1.

How do they get away with it? Because it's basically the only form of asic being shipped without a pre-order...


I think it's a big novelty factor - these things are selling on Ebay for $400 at the moment.

I bought 3 of these in the first group buy and sold one on Ebay today for $450. so it paid for 2... I am happy hahahah

Naelr

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HTML5 Gordon
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June 05, 2013, 01:20:55 AM
 #865


Right now I have a 120 mm case fan blowing across my 2 and they are cold to the touch.

Same here, but I just have a 92mm USB fan blowing on mine (plugged into the same hub).  Amazingly cool to the touch.  When I first ran without the fan, it got so hot I could barely touch it.  Makes all the difference in the world.
alibert
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June 05, 2013, 06:02:07 AM
 #866

A:357  R:3  HW:4
Less than 1% with cgminer
My wizard-like math skills says otherwise...  you have slightly more than 1 percent.

*ashamed*

mr_john
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June 05, 2013, 06:18:15 AM
 #867

pic from yesterday: 5 of them hashing happily together with a Jalapeno  Cheesy
(unfortunately not mine):



[edit]
and here another one:


Pictures taken yesterday in Hackerspace Metalab in Vienna (as Austrian group buy package arrived) Smiley
LogicalUnit
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June 05, 2013, 06:30:52 AM
 #868

What USB hub is being used in that setup?

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June 05, 2013, 06:34:39 AM
 #869

What USB hub is being used in that setup?
That's this one here:
http://www.digitus.info/produkte/zubehoer/usb-hubs/usb-20-7-port-hub-da-70222/

It's a 7-port hub, but I've only tested it with 5 eruptors (and 7 Eruptors won't fit as the ports on the side are to near to each other).
I got it here in Vienna in a local computer store for 15 Euros.

(see also: http://geizhals.at/digitus-7-port-usb-2-0-hub-da-70222-a852140.html )

[edit]
Works also on my raspberry pi! (running stable for about 12 hours now)
[/edit]
alibert
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June 05, 2013, 06:37:55 AM
 #870

My Testsetup: Guruplug Server (modded with active cooling and battery pack) and BE USB Miner with USB-Fan (homebrew):

http://www.abload.de/image.php?img=5rujv.jpg
http://www.abload.de/image.php?img=ucsfo.jpg

(5s):571.4M (avg):332.2Mh/s | A:2476  R:11  HW:42  U:4.0/m  WU:4.1/m

LogicalUnit
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June 05, 2013, 06:41:11 AM
 #871

What USB hub is being used in that setup?
That's this one here:
http://www.digitus.info/produkte/zubehoer/usb-hubs/usb-20-7-port-hub-da-70222/

It's a 7-port hub, but I've only tested it with 5 eruptors (and 7 Eruptors won't fit as the ports on the side are to near to each other).
I got it here in Vienna in a local computer store for 15 Euros.

(see also: http://geizhals.at/digitus-7-port-usb-2-0-hub-da-70222-a852140.html )

[edit]
Works also on my raspberry pi! (running stable for about 12 hours now)
[/edit]

Good to know, but it's tough for me to get in Australia.

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June 05, 2013, 07:28:48 AM
 #872

here are some more pictures from yesterday (Austrian group buy device distribution.. Smiley)
https://www.dropbox.com/sc/4q1p29fbp9bawu6/T8tkDUvOJ0#/
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June 05, 2013, 06:38:25 PM
 #873

OMG .Fools and their money!  When this was announced difficultly was under 10m and network hashrate under 80t/h.  Now you've got them it's 12m (+20%) and network hashrate is 100t/h+ . In under 3 days difficulty will hit 14.4m.  So thats a 44% increase in diffuclty in 5 weeks, around the 30% + a month I predicted.

So lets forecast from there shall we! Starting @ 0.0104 BTC and $1.27 profit a day for the first 10 days. 1 month profit $38.  3 month profit $90. 1 year profit $155!

you will never make a ROI.

To big a gamble to stake way over $12k on. Good luck though, I admire your balls, and I thought I was risky putting $900 into 3 x BFL 5 g/h miners (15G/H) to arrive this side of Xmas.

M

Ouch. difficulty just jumped from 12m to a whopping 15.6m. That is a huge jump obviously catching up to nework hashrate jump to 113 T/H. just run the numbers again and from today the block eruptor is only making 0.00966 btc a day and forecast to only make a total 1.2 btc in 1 years time!

Ouch. (again).

https://bitclockers.com/calc

M

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alibert
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June 05, 2013, 07:51:46 PM
 #874

That is 2.4 BTC in 24 months, in other words 20%! Thats great! I get 1% at my bank! Loving it!!!

abracadabra
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June 05, 2013, 08:01:34 PM
 #875

That is 2.4 BTC in 24 months, in other words 20%! Thats great! I get 1% at my bank! Loving it!!!

This misunderstanding of how much btc a piece of hardware will generate over a "long" (ie. more than a few months) time is probably the biggest reason people are buying hardware like this.  Good luck getting 2.4 BTC in 24 years.

bigbeninlondon
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June 05, 2013, 08:23:05 PM
 #876

That is 2.4 BTC in 24 months
No, because difficulty will continue to increase.

Quote
in other words 20%! Thats great! I get 1% at my bank! Loving it!!!
Except with the bank you do not have your funds blocked for years ; they are there.

That depends on the investment.  CDs lock in your funds for years.

Also, the erupters can be resold for a time, and at a gain too.
markyminer
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June 05, 2013, 08:58:58 PM
 #877

That is 2.4 BTC in 24 months, in other words 20%! Thats great! I get 1% at my bank! Loving it!!!

Nope. Check the current facts, network hashrate and difficulty is rising since February at a rate of 30% a month minimum. Which means difficulty doubles every 3.3months (and BTC earned halves!).

Ran the figures out for 730 days (2 years) from today. In 2 years the block eruptor will mine 1.25 BTC!! So in year two you will dig out a whole 0.05 BTC all year.

In year three BTC earned will end up less than the $0.01 a day it costs to power this USB stick.  Your best bet is the leave it running 24/7 for the next 12 months and hold the BTC earned until it hopefully rises to $185/BTC.  Then you will break even and maybe make a profit. if not you basically paid way way to high $/G/H to be an early ASIC adaoptor.

Good luck.

M

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bigbeninlondon
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June 05, 2013, 09:00:51 PM
 #878

At 1% it's probably an unlocked account, or his bank is even worse than the average bank!

They can be resold but it will certainly not be at that price.

Look, I bought one, but let's be real.

These bitches are selling @ $450 right now on eBay.  I bet they'll stay that way until Avalon's chips are released.
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June 05, 2013, 09:46:23 PM
 #879

These bitches are selling @ $450 right now on eBay.  I bet they'll stay that way until Avalon's chips are released.

And yet, we'll still hear economic illiterates claiming they are "overpriced."  Despite the market (loudly and firmly) saying otherwise, these buffoons believe their special little cheapskate beggar opinions truly outweigh the collective decision of all the actual buyers and sellers in an unprecedentedly free and low friction economy.   Roll Eyes


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June 05, 2013, 10:05:43 PM
 #880

These bitches are selling @ $450 right now on eBay.  I bet they'll stay that way until Avalon's chips are released.

And yet, we'll still hear economic illiterates claiming they are "overpriced."  Despite the market (loudly and firmly) saying otherwise, these buffoons believe their special little cheapskate beggar opinions truly outweigh the collective decision of all the actual buyers and sellers in an unprecedentedly free and low friction economy.   Roll Eyes

I am an economic illiterate and even i know that the price of something is the price market is willing to pay for it. People complaining here are just butthurt cause its not the price they are willing to pay.

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