Bitcoin Forum
October 18, 2017, 08:50:50 PM *
News: Latest stable version of Bitcoin Core: 0.15.0.1  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 [28] 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 »
  Print  
Author Topic: [Announcement] Block Erupter USB  (Read 248221 times)
turtle83
Sr. Member
****
Offline Offline

Activity: 322


Supersonic


View Profile WWW
May 21, 2013, 06:37:52 PM
 #541

I'm still wondering which brands produce qualitative 10 port powered USB hubs, seeing the China ones are not that trustworthy

Anyone? Smiley

Be careful of el chepo chinese hubs. I bought a 7 port (powered 5V 2A) one for my ztexes, which by the way does not draw power from USB... I get all sorts of errors on it. Got it to work with max 2 devices after disconnecting the 5V line from host <--> hub cable.

For Block Erupter USB  ud need more power. like ~0.5A per port... so if its 10 port hub, make sure u got 5V 5A adapter with it.

1508359850
Hero Member
*
Offline Offline

Posts: 1508359850

View Profile Personal Message (Offline)

Ignore
1508359850
Reply with quote  #2

1508359850
Report to moderator
1508359850
Hero Member
*
Offline Offline

Posts: 1508359850

View Profile Personal Message (Offline)

Ignore
1508359850
Reply with quote  #2

1508359850
Report to moderator
1508359850
Hero Member
*
Offline Offline

Posts: 1508359850

View Profile Personal Message (Offline)

Ignore
1508359850
Reply with quote  #2

1508359850
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
rupy
Hero Member
*****
Offline Offline

Activity: 725



View Profile
May 21, 2013, 08:35:55 PM
 #542

I'm also looking for a quality "industrial look" USB hub for some time... bought a d-link 7-port for my zTex and stripped the case, it's still working, can't say as much for the 60W power brick that powers the zTex cluster!

There are some but they are expensive as hell, and also they have weird power connectors:


BANKBOOK GWT Wallet & no-FIAT Billing API
Henchman24
Sr. Member
****
Offline Offline

Activity: 378


View Profile
May 21, 2013, 08:53:58 PM
 #543

I'm also looking for a quality "industrial look" USB hub for some time... bought a d-link 7-port for my zTex and stripped the case, it's still working, can't say as much for the power brick!

There are some but they are expensive as hell, and also they have weird power connectors:


Here's a 7 port USB 3.0 version, which gives you max 1.5 amps per port.  Although with the sapphire's lower power requirements (.500-.510 amps versus the .560 of the emeralds) it may not be as important anymore.

http://www.coolgear.com/productdetails1.cfm?sku=USBG-7U3ML&cats=434

And as you said, it's a little pricey at $99, considering you still need a power supply.
rupy
Hero Member
*****
Offline Offline

Activity: 725



View Profile
May 21, 2013, 08:59:34 PM
 #544

Just bought this:



It was downpriced to like 40$. Same manufacturer but with included "regular" power supply.

BANKBOOK GWT Wallet & no-FIAT Billing API
CumpsD
Sr. Member
****
Offline Offline

Activity: 476


View Profile
May 21, 2013, 09:00:18 PM
 #545

Got a link?
rupy
Hero Member
*****
Offline Offline

Activity: 725



View Profile
May 21, 2013, 09:01:37 PM
 #546

https://www.elfa.se/elfa3~se_sv/elfa/init.do?item=25-200-35&toc=25065&q=usb+hub

BANKBOOK GWT Wallet & no-FIAT Billing API
Amph
Legendary
*
Offline Offline

Activity: 1666



View Profile
May 21, 2013, 09:03:27 PM
 #547

2 x USB Miner vs. Radeon 7970, a simple power calculation for german users:

7970: let's give it 180W (GPU only) -> 0,18 kWh x 24h x 31d x 0,27 EUR = 36 EUR / month ~ 46 USD / month power costs
2 x USB Miner: 5W -> 0,005 kWh x 24h x 31d x 0,27 EUR = 1 EUR / month ~ 1.28 USD / month power costs

Well, in my book there are no open questions...

initial cost(investment) is the most important factor
7970 cost 100 usd less, also 7970 isn't the best vga for mining

a right comparison is 2 usb versus 7950, so 200 usd less(both 600MH\s)
also electricity is subjective(mine is 0.13 euro)
so i can run for 8 months mining before i start losing in comparison
and last but not last a gpu can be resold, those things not so much
CumpsD
Sr. Member
****
Offline Offline

Activity: 476


View Profile
May 21, 2013, 09:06:17 PM
 #548


5V power connector, no idea what connector it is, hard to see on the picture :/
dnaleor
Legendary
*
Offline Offline

Activity: 1428


Want privacy? Use Monero!


View Profile
May 21, 2013, 09:07:32 PM
 #549

I'm also looking for a quality "industrial look" USB hub for some time... bought a d-link 7-port for my zTex and stripped the case, it's still working, can't say as much for the 60W power brick that powers the zTex cluster!

There are some but they are expensive as hell, and also they have weird power connectors:



you just need to strip the cables and put the + (5? V) and the - (GND) in the right hole

Searching for a trusted escrow service? Check my trust. I use a Trezor device for my escrow services, so your coins are safe. Fee: 0.5% or 0.05 BTC, whichever is lower
I support the largest public transparent p2p ledger Bitcoin (16TwXyEmpz7xKHbyVufZECXGFmUH9wHUyW) and the best private fungible digital cash Monero (dnaleor.weuse.cash)
Cetere mi opinias ke Dasho estas detruenda.     |     1Credit - Fair emission, better than BTC > CLCqECaYpCahgKRsXJiVBzgsiz57ZHfr4u
Henchman24
Sr. Member
****
Offline Offline

Activity: 378


View Profile
May 21, 2013, 09:08:06 PM
 #550


Not that you asked Wink but the only possible downside I see is the port arrangement.

If you're buying it solely to run USB miners, the dimensions of the miner may prevent you from using all of the ports w/o the use of some USB extension cables.
rupy
Hero Member
*****
Offline Offline

Activity: 725



View Profile
May 21, 2013, 09:08:57 PM
 #551


Only 4A, in the pdf. Should work for BE's... Sad But not good for BE because:

Not that you asked Wink but the only possible downside I see is the port arrangement.

Yes, I'm going to run 5 zTex and only one BE USB... so if you want to fill this up with BE's it's a poor choice.

I'm just happy to have found something with a metal case at ~40 bucks!

I actually bought one of these too (just to see how it compares):

https://www.elfa.se/elfa3~se_sv/elfa/init.do?item=25-201-87&toc=25065&q=famid84582



At only 20$ it can fit BE's spacewise, and run them if the power supply is the same (4A).

Edit: PSU is 2A... limit but should work... BTW, these are neat!

But this only makes sense if you get the BE's with the old "industrial" heatsinks! Wink

I'm purchased 20 of them.

I would buy the 1x7port and plug 5x4port of these into that... total price of metal hub glory: ~150$

But just imagine 5 of these stacked (laying down of course so you can quietly cool them passively) and filled with 6GH at 50W! Neat!

But why didn't you buy the blade? 10GH for 50BTC!

BANKBOOK GWT Wallet & no-FIAT Billing API
CumpsD
Sr. Member
****
Offline Offline

Activity: 476


View Profile
May 21, 2013, 09:14:13 PM
 #552

Nice hubs here as well, scroll down for industrial ones: http://www.usbgear.com/USB-Hub.html
rupy
Hero Member
*****
Offline Offline

Activity: 725



View Profile
May 21, 2013, 09:22:55 PM
 #553

Nice hubs here as well, scroll down for industrial ones: http://www.usbgear.com/USB-Hub.html

It's the same company that makes all of these metal hubs (exsys). There are others but they are super expensive (around 300$ per 4 port hub!?)...

BANKBOOK GWT Wallet & no-FIAT Billing API
CumpsD
Sr. Member
****
Offline Offline

Activity: 476


View Profile
May 21, 2013, 09:24:41 PM
 #554

Nice hubs here as well, scroll down for industrial ones: http://www.usbgear.com/USB-Hub.html

It's the same company that makes all of these metal hubs (exsys). There are others but they are super expensive (around 300$ per 4 port hub!?)...

Ah, ok Smiley Just noticed usbgear is US only shipping too
Amph
Legendary
*
Offline Offline

Activity: 1666



View Profile
May 21, 2013, 09:44:25 PM
 #555

just buy a 10 usb port

$8 on amazon
tvbcof
Legendary
*
Online Online

Activity: 2296


View Profile
May 21, 2013, 09:47:50 PM
 #556

just buy a 10 usb port

$8 on amazon

Or just flush $8 down the toilet and save on shipping costs.

I looked at the various cheap hubs at Central Computer when I was in the Bay Area last week and the power supplies are not nearly sufficient to provide rated current to more than a few of the ports.  By my estimation.


rupy
Hero Member
*****
Offline Offline

Activity: 725



View Profile
May 22, 2013, 09:52:12 AM
 #557

FYI: If you wan't to recursively both power the RPi with the hub and control the hub with your RPi at the same time just cut the red wire in the uplink cable.

Code:
-P +-------+
 | |       |
 | c       |
 | |       |
+-------+  |
|  hub  |  | < SOLUTION: Cut the red wire here!
+-------+  |
 | | | |   |
 p o o o   |
 |         |
 | +-----+ |
 +-| RPi |-+
   +-----+

o = other "power hungry" devices
P = PSU power
p = USB power
c = hub controller

For my part o = 1xBE USB and 2x50GH BFL, I hope the RPi will be able to run them!

BANKBOOK GWT Wallet & no-FIAT Billing API
stepkrav
Full Member
***
Offline Offline

Activity: 188



View Profile
May 22, 2013, 11:02:22 AM
 #558

any clue about the software that can be used for mining? Preferably on linux.
Luke-Jr
Legendary
*
Offline Offline

Activity: 2240



View Profile
May 22, 2013, 11:17:06 AM
 #559

any clue about the software that can be used for mining? Preferably on linux.
BFGMiner from git will work.

arklan
Legendary
*
Offline Offline

Activity: 1470



View Profile
May 22, 2013, 11:35:25 AM
 #560

any clue about the software that can be used for mining? Preferably on linux.
BFGMiner from git will work.

and... how will it work? as in, settings, menu options? tiny hint?
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 [28] 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 »
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!