I do have an Anker 7 Port Hub I am selling.
It is on ebay but the make an offer price is $42 if anyone would like it.
http://www.ebay.com/itm/141185343028?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
The unit is the last one I purchased and I only used it a week before my Razorfishsl beast hub showed up.
Topic: Which USB hub to use with Block Erupters | NanoFury NF1 | BPMC Red Fury | Ant U1 - page 4. (Read 128592 times)
February 08, 2014, 10:47:29 PM
February 08, 2014, 09:54:41 PM
If anybody is looking for the Anker hubs, I'm selling two once I get my Dlinks so i can mine on my RPi
https://bitcointalksearch.org/topic/fs-2-anker-usb-30-9-port1charging-port-455875
https://bitcointalksearch.org/topic/fs-2-anker-usb-30-9-port1charging-port-455875
February 08, 2014, 09:15:38 PM
That's hard to say. You might get lucky and run all ten ports but I am more inclined to believe that you would get 6 to 7 working.
How many on the one i linked could run on it efficiently?
Cause this is what im using to run these....
Cause this is what im using to run these....
February 08, 2014, 08:45:35 PM
How many on the one i linked could run on it efficiently?
Cause this is what im using to run these....
Cause this is what im using to run these....
February 08, 2014, 08:25:12 PM
That one might be tight on power as it only run from one molex connection.
If you have a few more dollars get an Anker 7 port hub.
I used 3 of them until I got the big beast hub. They ran all of my miners ok even overclocked a BiFury with no problems.
If you have a few more dollars get an Anker 7 port hub.
I used 3 of them until I got the big beast hub. They ran all of my miners ok even overclocked a BiFury with no problems.
http://www.newegg.com/Product/Product.aspx?Item=0J2-001U-00005
Would this work, for power atleast just curious?
Would this work, for power atleast just curious?
February 08, 2014, 06:39:58 PM
http://www.newegg.com/Product/Product.aspx?Item=0J2-001U-00005
Would this work, for power atleast just curious?
Would this work, for power atleast just curious?
February 03, 2014, 06:53:34 PM
Hey guys, I just saw this on ebay limited seller history but seems a real decent price. how many usable ports do you think I will get with the 1x 20V 4.5A Power Supply?
http://www.ebay.com/itm/261376179469
http://www.ebay.com/itm/261376179469
4.5a has enuf juice for 9 stock miners.
USB miners pull about .05 - .07 each
Some more, much more when clocked.
10a min for 20miners 12a would be better.
ferget about watts, it is all about amps, watts can easily be calculated v x a=w
February 03, 2014, 06:36:46 PM
Hey guys, I just saw this on ebay limited seller history but seems a real decent price. how many usable ports do you think I will get with the 1x 20V 4.5A Power Supply?
http://www.ebay.com/itm/261376179469
http://www.ebay.com/itm/261376179469
February 02, 2014, 11:35:26 AM
And here the second part of the 19-porter hub review. I received my AntMiners U1s and got to play a bit with them. This time the hub is hosted by Win7 with 64-bit bfgminer 3.10.0.
I mixed 3 types of miners (8xAnt, 4xBE, 6xBlueFury), gave it the following command:
and observed the results:
All three managed to co-exist peacefully, and Ants even hashed between 1.7 and 1.9 on default settings.
I also tested the hub with all-Ants, and ran 18+fan without any side effects.
When I started bfgminer with
for a 2GH/s overclock, I started seeing two random Ants producing HW errors. I had to reduce the number of simultaneously running Ants to 13 for the HW errors to go away, and for them to run stably at 2.0-2.05GHs
I mixed 3 types of miners (8xAnt, 4xBE, 6xBlueFury), gave it the following command:
Code:
-S opencl:noauto -S erupter:all -S antminer:all -S bigpic:all
and observed the results:
All three managed to co-exist peacefully, and Ants even hashed between 1.7 and 1.9 on default settings.
I also tested the hub with all-Ants, and ran 18+fan without any side effects.
When I started bfgminer with
Code:
--set-device antminer:clock=x0981
for a 2GH/s overclock, I started seeing two random Ants producing HW errors. I had to reduce the number of simultaneously running Ants to 13 for the HW errors to go away, and for them to run stably at 2.0-2.05GHs
January 30, 2014, 07:24:03 PM
I have used an Arctic Breeze for over 4 months in my 3rd Anker 7port. I will keep this in mind when I setup the new hub tomorrow.
I do have a short USB extension cable I could use and mount it to the side somehow until I can find a standalone USB fan.
Thanks for the advice.
Basically any fan that does not use the Socket for support, or 'Jerry rig' the arctics with an extension cable.
I'm seeing a 'change in the USB power contact resistance' over time with the swan neck fans.(all sockets I have tested)
*in English* The vibration from the fan travels down the swan neck and causes the contact between the fan and the USB socket to arc slightly, thereby increasing the resistance and causing 'self heating' of the socket, which in turn causes the contacts to break loose of the integral plastic assembly in the sockets.
RF
I do have a short USB extension cable I could use and mount it to the side somehow until I can find a standalone USB fan.
Thanks for the advice.
Do you have a good USB fan you recommend that could be used instead??
***Important tip***
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
Basically any fan that does not use the Socket for support, or 'Jerry rig' the arctics with an extension cable.
I'm seeing a 'change in the USB power contact resistance' over time with the swan neck fans.(all sockets I have tested)
*in English* The vibration from the fan travels down the swan neck and causes the contact between the fan and the USB socket to arc slightly, thereby increasing the resistance and causing 'self heating' of the socket, which in turn causes the contacts to break loose of the integral plastic assembly in the sockets.
RF
January 30, 2014, 06:06:34 PM
Do you have a good USB fan you recommend that could be used instead??
***Important tip***
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
Basically any fan that does not use the Socket for support, or 'Jerry rig' the arctics with an extension cable.
I'm seeing a 'change in the USB power contact resistance' over time with the swan neck fans.(all sockets I have tested)
*in English* The vibration from the fan travels down the swan neck and causes the contact between the fan and the USB socket to arc slightly, thereby increasing the resistance and causing 'self heating' of the socket, which in turn causes the contacts to break loose of the integral plastic assembly in the sockets.
RF
Interesting. Though your reasoning is sound, and should be taken into consideration, I have not noticed any adverse effect of such fans. I have two that are running 24/7 for half a year now in the same two sockets.
January 30, 2014, 05:53:19 PM
Do you have a good USB fan you recommend that could be used instead??
***Important tip***
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
Basically any fan that does not use the Socket for support, or 'Jerry rig' the arctics with an extension cable.
I'm seeing a 'change in the USB power contact resistance' over time with the swan neck fans.(all sockets I have tested)
*in English* The vibration from the fan travels down the swan neck and causes the contact between the fan and the USB socket to arc slightly, thereby increasing the resistance and causing 'self heating' of the socket, which in turn causes the contacts to break loose of the integral plastic assembly in the sockets.
RF
January 30, 2014, 05:49:21 PM
Nice, thats what i like to see! Glad to hear that you are happy
January 30, 2014, 05:42:17 PM
Do you have a good USB fan you recommend that could be used instead??
***Important tip***
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
January 30, 2014, 05:37:43 PM
***Important tip***
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
DO NOT use Swan necked fans directly into USB ports.
The Swan Neck will Destroy the sockets, this applies to any USB socket
Razorfishsl
January 30, 2014, 04:10:09 PM
I received the 19-porter in the post today. It's official thread is here: https://bitcointalksearch.org/topic/m.4538611
There are also a few packaging pictures there, which I am not going take myself.
After unpacking, I noticed that the power cable was of the fused 3-pin variety (see the pics below), used in the UK. Luckily the connector on the hub is a standard PC power socket, and I have a few spare cables, which I could connect to the wall, so there was no problem for me there.
The hub has been running for a few hours now with 18 BlockErupters and an Arctic fan. It is controlled by RaspberryPi, which has no problems in accepting this hub.
The physical layout of the ports on the top surface is spacious, allowing (as can be seen from the pictures in the official thread) even for the wider BlueFuries. The three side contacts are spaced closer together, but still with ample clearance for BE's and (hopefully) U1's.
It has a 20A internal power adapter, which powers all ports with juice to spare. Overclocked U1's may present a problem though, if fractalbc's response above is any guide. The hub might be able to handle 12-13 overclocked U1's. I'll try that once I have them in-hand. I also plan to try mixing U1's, BEs and BlueFuries to achieve the best power and space utilisation.
There are also a few packaging pictures there, which I am not going take myself.
After unpacking, I noticed that the power cable was of the fused 3-pin variety (see the pics below), used in the UK. Luckily the connector on the hub is a standard PC power socket, and I have a few spare cables, which I could connect to the wall, so there was no problem for me there.
The hub has been running for a few hours now with 18 BlockErupters and an Arctic fan. It is controlled by RaspberryPi, which has no problems in accepting this hub.
The physical layout of the ports on the top surface is spacious, allowing (as can be seen from the pictures in the official thread) even for the wider BlueFuries. The three side contacts are spaced closer together, but still with ample clearance for BE's and (hopefully) U1's.
It has a 20A internal power adapter, which powers all ports with juice to spare. Overclocked U1's may present a problem though, if fractalbc's response above is any guide. The hub might be able to handle 12-13 overclocked U1's. I'll try that once I have them in-hand. I also plan to try mixing U1's, BEs and BlueFuries to achieve the best power and space utilisation.
January 23, 2014, 07:55:11 PM
I have a question about using a regular computer PSU to power the hubs. I've read through the thread and it seems to be possible to splice a 4-pin molex connector into a barrel plug (I saw the links for the ones that don't require soldering). My PSU (Corsair TX750) says it has 150W and 25A on the 5V rail. If I splice a molex connector to a barrel plug and use it power my hubs (Rosewill RHB-500 and Vantec UGT-PH210), will I fry the hubs, burn my house down, etc? Will there be a significant benefit in doing so (ie. able to power more BEs per hub, etc)?
I thought I read somewhere in here that it's not quite so simple and that you can get the full amperage off of one molex plug. Is that correct?
Thanks for any tips
It really IS that easy. You are limited to the capacity of the molex plug and the barrel plug. The molex plug is good for about 8 amps but the barrel plug can only handle 4 or 5 amps. That is why many of us bypass the barrel plug and wire a molex plug directly to the hub.I thought I read somewhere in here that it's not quite so simple and that you can get the full amperage off of one molex plug. Is that correct?
Thanks for any tips
The primary advantages include better efficiency and more devices per hub.
January 23, 2014, 03:43:09 PM
I have a question about using a regular computer PSU to power the hubs. I've read through the thread and it seems to be possible to splice a 4-pin molex connector into a barrel plug (I saw the links for the ones that don't require soldering). My PSU (Corsair TX750) says it has 150W and 25A on the 5V rail. If I splice a molex connector to a barrel plug and use it power my hubs (Rosewill RHB-500 and Vantec UGT-PH210), will I fry the hubs, burn my house down, etc? Will there be a significant benefit in doing so (ie. able to power more BEs per hub, etc)?
I thought I read somewhere in here that it's not quite so simple and that you can get the full amperage off of one molex plug. Is that correct?
Thanks for any tips
I thought I read somewhere in here that it's not quite so simple and that you can get the full amperage off of one molex plug. Is that correct?
Thanks for any tips
January 22, 2014, 12:56:48 PM
I suck at math... but this should work fine with antminers?
Anker® USB 3.0 7-Port Hub with 1 BC 1.2 Charging Port up to 5V 1.5A, 12V 3A Power Adapter
My plan is to run 6 antminers and artic breeze fan in the charging port #7
Antminer = "1.2 Watt power from the USB port and .5 Amp" - I'm going to assume not overclocked
Anker® USB 3.0 7-Port Hub with 1 BC 1.2 Charging Port up to 5V 1.5A, 12V 3A Power Adapter
My plan is to run 6 antminers and artic breeze fan in the charging port #7
Antminer = "1.2 Watt power from the USB port and .5 Amp" - I'm going to assume not overclocked
In reality this will probably only be stable with 4 ants + the fan. ..........If it runs 5 its a bonus.
You were correct, the Anker 7 port (6 + charging) is only a marginal improvement. I'm not getting the performance I wanted.
January 21, 2014, 10:41:02 PM
Shouldn't they all conform to the USB 2.0 standard of 5V @ 0.5A or is U1 an exception?
The U1 is an exception. It runs at stock speed at standard current. It can draw up to 1.5 amps @ 5V when overclocked. Knowing the weakest link (wall wart, plug, in hub regulator (if usb3) or usb plug) is critical if you want to run more than a couple of overclocked U1's. Jump to: