asic miners not recognized in hub

[legopc]

i recently bought 9 erupter miners and a "tecknet" powerd usb hub. but here is the problem all the miners and the hub works fine on my main rig it recognizes all of them, but on my mining computer i alocated for it the miners are not being recognized when i put them in the usb hub but they are seen when i just put them in one of the mobo usb ports it works just fine with bitminter but i dont think the hub is broken because when i just put a usb drive in the hub win just sees it without a problem but i can not get them to work on there BUT here is the wierd thing if i put a non powerd hub on my powerd hub and then a miner on the non powerd one it works fine so i think it is driver related but i have no idea how to fix it so i hope you guys can help me

[1714858646]

1714858646

[1714858646]

1714858646

[1714858646]

1714858646

[Itun]

I think it's driver related as well.

If you do a quick google search drivers for those erupters will soon come out.

Just download them and they should work just fine.

[thomslik]

If you are using Windows, I remember seeing a post somewhere about cleaning up the automatic USB assignments in windows. You might search for and try that.

[spook30]

trying to buy a couple more myself. prices have skyrocketed.

[ajnozari]

The USB asics can be a bit annoying to get running.

Personally I've found a few things that help.

1. Use cgminer as it is more reliable reconnecting miners that disconnect (for whatever reason).  bfgminer isn't as good at doing that.
        Link to Latest binaries as of this time -> https://github.com/kanoi/cgminer-binaries/tree/master/3.8.1
        if you are using cgminer, then please try updating.  If your on linux try compiling it from source.  If you need help with that let me know.

2. Make sure that your usb hub can power however many you are plugging in.  If these are the USB Block Erupters they require .5 A per device so a 3A power supply can power 6 devices (3A/ .5A).  They also require 5V so ensure that the power supply outputs at least that much.

3. If your on windows please, please, please update your drivers.  This solved all my issues.  Here's a good guide: http://bitcoinrigs.org/mining-resource/how-to-setup-asic-block-erupter/

4. When running it (via cmd, terminal, etc.) ensure that you are running as an ADMINISTRATOR.  Windows doesn't like to give access to com ports (IIRC it gets annoyed) unless your admin and linux sometimes adds the devices as root.  On linux to see who owns the devices (if these are USB Block Erupters) type ls -al /dev/ttyUSB* (please type the USB in caps).  This should show all of the devices on the TTY (com) and what ports.  IF their not there then something is wrong.  If they are and they are owned by root (or some other group than your username) be sure to run the miner using sudo (runs as root).  Alternatively you can chown the devices on linux:

sudo chown username /dev/ttyUSB*

(replace username with your username)

5.  Try a different HUB.  TigerDirect has a Dlink HUB (DUB-H7) that outputs at 3A with 6V (IIRC) and I use them to run 6 miners per hub (7 port hub) and they work beautifully.  Note if your using a Raspberry PI or some other device like that, PLEASE use no more than 5 per hub (Dlink) as it has MAJOR stability problems (i mean major) as apparently 6 pulls just enough Voltage to require some from the Pi and when you daisy chain them, it isn't enough to run multiple miners.

6.  Be sure to update linux (if your using it) as well with

sudo apt-get update
sudo apt-get upgrade
sudo apt-get fist-upgrade
sudo reboot

(reboot is there to ensure that everything is updated as sometimes it has to reboot to finish)

I hope these tips help, and happy mining

[legopc]

ok i just got 7 of them working on win xp but only 6 of them show up in device maneger but when i connect the 8th com5 shows up but it gives an error (i think it was code 31) but bitminter does not see the 8th one but when i connect the 9th one an other com port shows a conflict (code 41) and that one doesnt show up either andi have no idea how to fix it :L

[ajnozari]

Hey, could you please detail your rig?

Please give us the following so I can help you better.

1: Operating System
2: Onboard USB Ports
3: Front Panel USB Ports*
4: Ports on Hub
5: Hub Power Supply Details (typically on the power brick's sticker)
     -Input Voltage
     -Input Amps
     -Output Voltage
     -Output Amperage
6:  Where you are plugging these miners into (which ports on the HUB and the computer itself)
7:  If applicable: Computer Brand and Model Number

*3, front panel ports are usually connected via a cable to the motherboard and the available power is typically less then that from a USB port on the motherboard.  On my system I have two sets of Front end ports, 1 set of USB 3.0 and 1 set of USB 2.0.  Since they both require separate headers I can plug one USB miner into them no probrm (giving me the ability to use 2 miners on the front ports of the system).  I cannot test more because of the placement of the ports (their horizontal not vertical (grumble grumble)).

You have stated that your system is Windows XP so the motherboard *may* not be up to the task of supplying the proper power to the devices.  If the HUB isn't powered then your probably never going to get them working.  Please get me (at least some) of this information so I can help you more.

[Itun]

trying to buy a couple more myself. prices have skyrocketed.

Don't buy some now.

You'll be better off buying some btc with that money.

[BBasicminer51]

I have 51 Asic Block Erupters running. MOBO Bus can be overrun or open Device Manager and right click devices and download drivers. If info did not come with devices then try SILICON LABS VCP DRIVER CP210xVCPInstaller_x64  or_x86  depending on your system. Give each device time to enter the system as they download one at a time. Also back off one each on the hubs as the list info is not always what they are.
51 asics eat time to get up and run and many re-inits to bring them all up. Hope this helps!

[legopc]

Hey, could you please detail your rig?

Please give us the following so I can help you better.

1: Operating System
2: Onboard USB Ports
3: Front Panel USB Ports*
4: Ports on Hub
5: Hub Power Supply Details (typically on the power brick's sticker)
     -Input Voltage
     -Input Amps
     -Output Voltage
     -Output Amperage
6:  Where you are plugging these miners into (which ports on the HUB and the computer itself)
7:  If applicable: Computer Brand and Model Number

*3, front panel ports are usually connected via a cable to the motherboard and the available power is typically less then that from a USB port on the motherboard.  On my system I have two sets of Front end ports, 1 set of USB 3.0 and 1 set of USB 2.0.  Since they both require separate headers I can plug one USB miner into them no probrm (giving me the ability to use 2 miners on the front ports of the system).  I cannot test more because of the placement of the ports (their horizontal not vertical (grumble grumble)).

You have stated that your system is Windows XP so the motherboard *may* not be up to the task of supplying the proper power to the devices.  If the HUB isn't powered then your probably never going to get them working.  Please get me (at least some) of this information so I can help you more.

1. windows xp 32 bit
2. i dont realy get that question but i think you mean amount i have six on the back of my pc
3. 2 ports
4. 10 ports tecknet hub
5. input: 100-240v
1.2a
12v
4000ma
6. i just put all of them in the hub
7. hp compaq dc7600

[Slavboy]

Try bfg miner, i use under win8 and is super, he recognize difrent hardware automaticly.

Ps. Renember about drivers

[legopc]

Try bfg miner, i use under win8 and is super, he recognize difrent hardware automaticly.

Ps. Renember about drivers

i already tried that and i also tried cgminer but none of them are working there having the same issue with only 7 showing up :L

[otsaku]

are you using a powered hub?

On my mac mini it didn't like the extra power being drawn through the port - powered hub solved it.

I've also had problems getting bitminter to find them.

Check that they are all inserted as far as they can go, install the VCP drivers as someone else has said, try the probe external devices a few times.

If there are some still not showing up, try and change the order, for example I had a number 6 that wouldn't work so I tried it in port 1, 2 and so on. It worked fine in port 8...

[ajnozari]

1. windows xp 32 bit
2. i dont realy get that question but i think you mean amount i have six on the back of my pc
3. 2 ports
4. 10 ports tecknet hub
5. input: 100-240v
1.2a
12v
4000ma
6. i just put all of them in the hub
7. hp compaq dc7600

Ok, so there's actually a few things.

1.) This should be fine for what your doing.
2.) Ok, you can most likely put 3 ASICS on the back of your PC but I wouldn't recommend doing that, good way to fry a motherboard should the current be more than what it can handle.
3.) The two ports can host ONE miner.  That is all.

4,5,6)  This hub isn't going to be powerful enough to run all of these.  At most you could put 7.  Yes, the math (2.5W = 5V * .5 A) means that you *could* put 8 ASICS in this one hub (4000ma = 4A/.5A = 8 ASICS possible) but really you can't.  The ASICS user power to both mine AND send/receive data.  The draw will be too high and the hub might not be able to compensate even if it pulls more from the computer.

7.) it's an older model which confirms that the USB ports might not be up to snuff.  Manufacturers like to cut corners with power and the best place (was) to under power the USB ports.  Though they can run USB 2.0 devices most devices require less than the maximum power to run.

As a test, try plugging in 7 devices into the hub, then get mining running.  Once it's stabilized (wait like 5 minutes) try to add one more ASIC and WAIT until the light stops flashing on it and turns a solid green.  If your mining software detects it and starts work, great try adding one more until it stops working.  If it stays green see below:

If your using bfgminer you must get the com port that the new device is running on (open device manager while adding it) and press M then + (manage devices, add new device) then type in the corresponding COM port (e.g. //com8).  If it says No New Device (or no device found) then the device can't initialize and however many you've added to the HUB is the max that HUB can support.

If your using CGminer (with ASIC support) it should automatically detect the new device and just start working.  Keep trying to add (once the 7 are stable) until NO additional devices are recognized.  This is the max that the HUB can support.

BTW.  For all of you who say it's a driver problem your wrong.  His computer "sees" 7 of them, which means the drivers are working correctly.  3 (assuming OP bought 10 for a 10 port hub) don't have enough power to run.  He needs to either get another HUB and run 7 in each OR try using the ports directly on his motherboard (not recommended).  It isn't a driver issue here it's simply that the ASICS aren't getting enough power to run.

On a side note, try stopping the mining software and plugging them all in, they should all light up (solid green) because with NO work they only require a very small amount of power.

Also as otsaku said, try plugging each device in (alone) to the hub and see if it can start mining if it doesn't it might be bad (DOA).

Please let me know if this helps you.

[legopc]

1. windows xp 32 bit
2. i dont realy get that question but i think you mean amount i have six on the back of my pc
3. 2 ports
4. 10 ports tecknet hub
5. input: 100-240v
1.2a
12v
4000ma
6. i just put all of them in the hub
7. hp compaq dc7600

Ok, so there's actually a few things.

1.) This should be fine for what your doing.
2.) Ok, you can most likely put 3 ASICS on the back of your PC but I wouldn't recommend doing that, good way to fry a motherboard should the current be more than what it can handle.
3.) The two ports can host ONE miner.  That is all.

4,5,6)  This hub isn't going to be powerful enough to run all of these.  At most you could put 7.  Yes, the math (2.5W = 5V * .5 A) means that you *could* put 8 ASICS in this one hub (4000ma = 4A/.5A = 8 ASICS possible) but really you can't.  The ASICS user power to both mine AND send/receive data.  The draw will be too high and the hub might not be able to compensate even if it pulls more from the computer.

7.) it's an older model which confirms that the USB ports might not be up to snuff.  Manufacturers like to cut corners with power and the best place (was) to under power the USB ports.  Though they can run USB 2.0 devices most devices require less than the maximum power to run.

As a test, try plugging in 7 devices into the hub, then get mining running.  Once it's stabilized (wait like 5 minutes) try to add one more ASIC and WAIT until the light stops flashing on it and turns a solid green.  If your mining software detects it and starts work, great try adding one more until it stops working.  If it stays green see below:

If your using bfgminer you must get the com port that the new device is running on (open device manager while adding it) and press M then + (manage devices, add new device) then type in the corresponding COM port (e.g. //com8).  If it says No New Device (or no device found) then the device can't initialize and however many you've added to the HUB is the max that HUB can support.

If your using CGminer (with ASIC support) it should automatically detect the new device and just start working.  Keep trying to add (once the 7 are stable) until NO additional devices are recognized.  This is the max that the HUB can support.

BTW.  For all of you who say it's a driver problem your wrong.  His computer "sees" 7 of them, which means the drivers are working correctly.  3 (assuming OP bought 10 for a 10 port hub) don't have enough power to run.  He needs to either get another HUB and run 7 in each OR try using the ports directly on his motherboard (not recommended).  It isn't a driver issue here it's simply that the ASICS aren't getting enough power to run.

On a side note, try stopping the mining software and plugging them all in, they should all light up (solid green) because with NO work they only require a very small amount of power.

Also as otsaku said, try plugging each device in (alone) to the hub and see if it can start mining if it doesn't it might be bad (DOA).

Please let me know if this helps you.

4, 5, 6 i realy dont think its a power issue becaus i got all of them working (on the hub) on my main rig with  i3 and bla but as i said some in win7/vista it wont even recognize one of them if i put them in the hub but if i put them in the mobo they are seen but only on win xp i can get 7 of them working but not 8 or 9
7 ...you know what that could be it but is there a way to test this i mean my fancy pc (intel dh55tc) works fine and they also work fine in my mothers dell vostro 1310 but not in my laptop (acer 5536) and same goes for my mining computer thingy (hp dc7600) so i was wandering is there also a posibilety that its just luck that some computers work fine and some dont?
oh and i tried plugging the 8th one in after 5 min and that didnt work :L but still thanks for trying to help me

[ajnozari]

Since the 8th didn't activate, that means it IS a power issue.

Remember that USB hubs after the 4th port tend to just add another "hub" to the 4th port to give you another three.  Since the computer is so old I suspect that the USB ports don't give enough power (despite the power block) to power the ASICS.  Not to mention that you should be able to only run 8 on this rig (anyways) since there isn't enough current to power all 10.  Each ASIC requires .5 A and 5V for a total of 2.5W.  The hub's power supply can give (at max) 4A.  This doesn't account for additional current draw from the USB port.  Basically to get a ten port HUB you have to use three hubs. 

PC USB -> Hub 1 (3 ports available)
Hub 1 port #4 -> Hub 2 (3 ports available)
Hub 2 port #4 -> Hub 3 (4 ports available)

3 + 3 + 4 = 10 ()

Now for a little on the HUB.  Remember that when using a HUB the USB ports of the HUB (without power supply) must share the .5A/.9A/1.5 A (in order USB 2.0/3.0/Dedicated charge) across all of the ports.  However when you throw a power supply into the mix the amount of available power per port drastically increases.  Older motherboards may only give .5A (USB 2.0) which would at best allow you to add in one more device but this is also used to power the additional "hubs" to get more ports.

What confirms this is a power issue IS that it works on a newer rig.  Many new motherboards and systems have what's called "dedicated charge" ports along with USB 3.0.  With the move to USB 3.0 the total current draw was increased to 900mA and dedicated charge ports are rated up to 1500mA.  However, on an XP machine I doubt that you have USB 3.0, most likely (99.99% chance here it's) USB 2.0.  USB 2.0 is rated at 500mA maximum, not counting dedicated charge ports which on an XP era machine were RARE (usually a different colored port to check-> yellow/blue as red indicated eSATA/USB combo).  With the additional .5A you *could* run 9 ASICs but that's NOT taking into account the power that the hubs require, which is probably around .5A since you can't use more than 7 ASICs on the XP machine.

On the newer rigs USB 3.0 ports tend to put out around .9-1.5A (if dedicated charge) so people can charge tables and such without having to use a wall outlet.  So if we add 1.5 A (i3) + 4 A(hub) = 5.5A/.5A (per device) = 11 devices on a dedicated charge port.  However, even if we use the .9A that's 4.9A which gives you ~9.8 ASICs powered.  Since we know that the hub uses ~.5A you still have enough room to power the 9th device (with some wiggle) on a .9A port and 10 on the 1.5A but NOT enough to power a 10th/11th accordingly (I know the hub is 10 it's just a part of the explanation).  Normally I'd say use one less than the max possible (available Amps / .5A) but since you have to subtract 1 device (or .5A) to account for the HUB this is taken care of for you since in most configurations you'll have MORE than the needed power for MAX-1 ASICs but not enough to fully power the last (-1) ASIC.

So, this can't be a driver issue or Hub issue since 7 of the ASICs work and this shows that Windows XP is detecting the devices since if it was a driver issue NONE of them would work.  Because the 8th just doesn't do anything, it tells me that the older USB port just can't provide enough power to run the additional device.

As for your question about testing, unfortunately manufacturers are greedy and like to cut corners.  If they reduce the power to a USB port (or use the absolute minimum) they can reduce some heat that goes through the system (along with wasted power).  They also like to include power supplies that *just* barely have enough power to power the system under load (sometimes not even that).  So it's going to be hit or miss on this. 

I'd recommend trying to find a mid-2011 mac mini (obviously used) since in 2011 Apple implemented 1.5A per port so you could charge your i-devices without issue.  Currently I am running 36 ASICs off of two ports, daisy chaining the hubs a bit (7 port hubs) to give me enough connections and it's been running smoothly (with no hiccups) for about a month now.  However, I do have enough USB ports to add in 10 more ASICs but since the power supply is only 3A I can run at max 6 (but the 6th doesn't have enough power since I have to daisy chain to power so many on this rig) so I'm only able to run 5 per HUB.

So while I'd love to tell you that this is a driver issue and windows XP is just not doing it right, this really is a power issue.  Go buy another USB hub and save yourself the headache.

[legopc]

Since the 8th didn't activate, that means it IS a power issue.

Remember that USB hubs after the 4th port tend to just add another "hub" to the 4th port to give you another three.  Since the computer is so old I suspect that the USB ports don't give enough power (despite the power block) to power the ASICS.  Not to mention that you should be able to only run 8 on this rig (anyways) since there isn't enough current to power all 10.  Each ASIC requires .5 A and 5V for a total of 2.5W.  The hub's power supply can give (at max) 4A.  This doesn't account for additional current draw from the USB port.  Basically to get a ten port HUB you have to use three hubs. 

PC USB -> Hub 1 (3 ports available)
Hub 1 port #4 -> Hub 2 (3 ports available)
Hub 2 port #4 -> Hub 3 (4 ports available)

3 + 3 + 4 = 10 ()

Now for a little on the HUB.  Remember that when using a HUB the USB ports of the HUB (without power supply) must share the .5A/.9A/1.5 A (in order USB 2.0/3.0/Dedicated charge) across all of the ports.  However when you throw a power supply into the mix the amount of available power per port drastically increases.  Older motherboards may only give .5A (USB 2.0) which would at best allow you to add in one more device but this is also used to power the additional "hubs" to get more ports.

What confirms this is a power issue IS that it works on a newer rig.  Many new motherboards and systems have what's called "dedicated charge" ports along with USB 3.0.  With the move to USB 3.0 the total current draw was increased to 900mA and dedicated charge ports are rated up to 1500mA.  However, on an XP machine I doubt that you have USB 3.0, most likely (99.99% chance here it's) USB 2.0.  USB 2.0 is rated at 500mA maximum, not counting dedicated charge ports which on an XP era machine were RARE (usually a different colored port to check-> yellow/blue as red indicated eSATA/USB combo).  With the additional .5A you *could* run 9 ASICs but that's NOT taking into account the power that the hubs require, which is probably around .5A since you can't use more than 7 ASICs on the XP machine.

On the newer rigs USB 3.0 ports tend to put out around .9-1.5A (if dedicated charge) so people can charge tables and such without having to use a wall outlet.  So if we add 1.5 A (i3) + 4 A(hub) = 5.5A/.5A (per device) = 11 devices on a dedicated charge port.  However, even if we use the .9A that's 4.9A which gives you ~9.8 ASICs powered.  Since we know that the hub uses ~.5A you still have enough room to power the 9th device (with some wiggle) on a .9A port and 10 on the 1.5A but NOT enough to power a 10th/11th accordingly (I know the hub is 10 it's just a part of the explanation).  Normally I'd say use one less than the max possible (available Amps / .5A) but since you have to subtract 1 device (or .5A) to account for the HUB this is taken care of for you since in most configurations you'll have MORE than the needed power for MAX-1 ASICs but not enough to fully power the last (-1) ASIC.

So, this can't be a driver issue or Hub issue since 7 of the ASICs work and this shows that Windows XP is detecting the devices since if it was a driver issue NONE of them would work.  Because the 8th just doesn't do anything, it tells me that the older USB port just can't provide enough power to run the additional device.

As for your question about testing, unfortunately manufacturers are greedy and like to cut corners.  If they reduce the power to a USB port (or use the absolute minimum) they can reduce some heat that goes through the system (along with wasted power).  They also like to include power supplies that *just* barely have enough power to power the system under load (sometimes not even that).  So it's going to be hit or miss on this. 

I'd recommend trying to find a mid-2011 mac mini (obviously used) since in 2011 Apple implemented 1.5A per port so you could charge your i-devices without issue.  Currently I am running 36 ASICs off of two ports, daisy chaining the hubs a bit (7 port hubs) to give me enough connections and it's been running smoothly (with no hiccups) for about a month now.  However, I do have enough USB ports to add in 10 more ASICs but since the power supply is only 3A I can run at max 6 (but the 6th doesn't have enough power since I have to daisy chain to power so many on this rig) so I'm only able to run 5 per HUB.

So while I'd love to tell you that this is a driver issue and windows XP is just not doing it right, this really is a power issue.  Go buy another USB hub and save yourself the headache.

uh i just dontloaded a siliconlabs thingy programmy and changed the com ports manualy and all of them are working soooooo still dont think its a power issue but still thanks for the help