When I goto the add hardware thing and look or the silicon labs thing and click it I ge this...
Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system. (Code 42)
Gonna try and reset the laptop see if it helps butt if it doesn't then I guess I'll have wasted my cash on these damn things ;-/
Topic: Bitmain Antminer U2 - page 3. (Read 26263 times)
Try starting with only one miner installed in the laptop, let it stabilize, install the second miner and wait long enough for windows to assign the right driver. I've seen windows change COM# after it realized you have two of the same devices, not sure why, but it did this with a set of web cams I had a couple years back. Then try to "Manage" adding the second miner to the already running instance.
So what, like start CGMIner let it run for say 10 mins under 1 stick then add the other ? 
Try starting with only one miner installed in the laptop, let it stabilize, install the second miner and wait long enough for windows to assign the right driver. I've seen windows change COM# after it realized you have two of the same devices, not sure why, but it did this with a set of USB web cams I had a couple years back. Then try to "Manage" adding the second miner to the already running instance.
Either the driver did not install correctly on that miner or you have a DOA, unfortunately I have seen all to many of these new ones DOA. I have handled 8 that looked as though the component labeled 4RU was totally burnt/fried by the solder work at the factory.
Thats just it, both work fine because I can run either or as a single but when I try to use two at the same time I get the previously posted output.I remember something similar with my BE's but I ended up getting them working somehow.
Either the driver did not install correctly on that miner or you have a DOA, unfortunately I have seen all to many of these new ones DOA. I have handled 8 that looked as though the component labeled 4RU was totally burnt/fried by the solder work at the factory.
I just go two U2's but I can only seem to get one running... not using a hub, direct port off the WinXP laptop like I did with my BE's these replaced.
Any help is appreciated, using CGMiner 4.2.2
r - AMU device 3:1
[2014-04-10 18:24:26] See README.txt file included for help
[2014-04-10 18:24:26] Icarus detect (3:1) failed to initialise (incorrect device?)
[2014-04-10 18:24:31] Accepted 13d3b1b1 Diff 13/2 ANU 0 pool 0
[2014-04-10 18:24:31] Reconnect requested from pool 0 to stratum-lb-usa48.btcguild.com:3333
[2014-04-10 18:24:32] Pool 0 difficulty changed to 2
[2014-04-10 18:24:33] USB init, open device failed, err -12, you need to install a WinUSB driver fo
r - AMU device 3:1
[2014-04-10 18:24:33] See README.txt file included for help
[2014-04-10 18:24:33] Icarus detect (3:1) failed to initialise (incorrect device?)
[2014-04-10 18:24:33] Rejected 2f483b38 Diff 5/2 ANU 0 pool 0 (unknown)
[2014-04-10 18:24:37] Accepted 6665c294 Diff 3/2 ANU 0 pool 0
[2014-04-10 18:24:39] USB init, open device failed, err -12, you need to install a WinUSB driver fo
r - AMU device 3:1
[2014-04-10 18:24:39] See README.txt file included for help
[2014-04-10 18:24:39] Icarus detect (3:1) failed to initialise (incorrect device?)
Any help is appreciated, using CGMiner 4.2.2
r - AMU device 3:1
[2014-04-10 18:24:26] See README.txt file included for help
[2014-04-10 18:24:26] Icarus detect (3:1) failed to initialise (incorrect device?)
[2014-04-10 18:24:31] Accepted 13d3b1b1 Diff 13/2 ANU 0 pool 0
[2014-04-10 18:24:31] Reconnect requested from pool 0 to stratum-lb-usa48.btcguild.com:3333
[2014-04-10 18:24:32] Pool 0 difficulty changed to 2
[2014-04-10 18:24:33] USB init, open device failed, err -12, you need to install a WinUSB driver fo
r - AMU device 3:1
[2014-04-10 18:24:33] See README.txt file included for help
[2014-04-10 18:24:33] Icarus detect (3:1) failed to initialise (incorrect device?)
[2014-04-10 18:24:33] Rejected 2f483b38 Diff 5/2 ANU 0 pool 0 (unknown)
[2014-04-10 18:24:37] Accepted 6665c294 Diff 3/2 ANU 0 pool 0
[2014-04-10 18:24:39] USB init, open device failed, err -12, you need to install a WinUSB driver fo
r - AMU device 3:1
[2014-04-10 18:24:39] See README.txt file included for help
[2014-04-10 18:24:39] Icarus detect (3:1) failed to initialise (incorrect device?)
thanks 
oh and here for the record the overclock settings. A noob (me) did some homework
ohh commandline for BFG is on the end: antminer:clock=xValue (no space between x and value)
and then after the x the value for the clock rate
1.6=0781
1.8=0881
2.0=0981
2.2=0A81
For CGMiner newer Version --anu-freq Value (space after freq)
1.6=200
1.8=225
2.0=250
2.2=275
2.4=300
ohh commandline for BFG is on the end: antminer:clock=xValue (no space between x and value)
and then after the x the value for the clock rate
1.6=0781
1.8=0881
2.0=0981
2.2=0A81
For CGMiner newer Version --anu-freq Value (space after freq)
1.6=200
1.8=225
2.0=250
2.2=275
2.4=300
Ok the U2+ spouse to be at 2 Gh/s by just plug and play right? How do I know if I got a + or no +
Hi. Is there a tutorial of how to overclock this antminer U2??
+1
i have 2 antminers U2+ and would like to know(in linux), with my raspberry pi, what command line do i need to overclock them.
Right now, they work without overclock at 1.95GH/s. and would like to increase it a bit, without damaging the antminer.
thanks
It depends on what mining software you are using. Start with this thread: https://bitcointalksearch.org/topic/bitmain-antminer-u1-tips-tricks-390929
I have bfgminer, default miner with minepeon for raspberry pi. but i will ask on that thread, its just i have antminer U2+ and i thought it would be better to ask how to overclock it here in the antminer U2 thread.
Hi. Is there a tutorial of how to overclock this antminer U2??
+1
i have 2 antminers U2+ and would like to know(in linux), with my raspberry pi, what command line do i need to overclock them.
Right now, they work without overclock at 1.95GH/s. and would like to increase it a bit, without damaging the antminer.
thanks
It depends on what mining software you are using. Start with this thread: https://bitcointalksearch.org/topic/bitmain-antminer-u1-tips-tricks-390929
So many people in the web are just assuming and guessing I was reading thru the readme and made the jump in the cold water by getting the newest version where other people say dont get the new one stay with 3.1.1 because everybody is using that one. Please let me know if u want me to add or remove more from the config file. Thank you very much to both of you and I keep u posted about the usb hub results
That ancient version has no support for antminers anyway. It thinks they're block erupters and probably runs them at ~500MH. Hi. Is there a tutorial of how to overclock this antminer U2??
+1
i have 2 antminers U2+ and would like to know(in linux), with my raspberry pi, what command line do i need to overclock them.
Right now, they work without overclock at 1.95GH/s. and would like to increase it a bit, without damaging the antminer.
thanks
I have raspberry pi with minepeon (MinePeon-0.2.4.6-RaspberryPi.img).
Installed it into a sd card, and i use browser to access minepeon.
I have to antminers U2 connected in an usb hub to the raspberry pi.
I have a question.
The 2 antminers U2 are mining, but they are using default bfgminer.
I would like to know if you recommend me better to use cgminer, and where can i find a tutorial for installing it.
I just installed last minepeon version for raspberry pi, and then just setup the pool url with user and pass, and its mining, but i dont know if its better to use cgminer or not.
Thanks!
In my experience, there is no significant difference between the two insofar as performance is concerned. Your only differences will be features, and for your needs it doesn't sound like it matters.Installed it into a sd card, and i use browser to access minepeon.
I have to antminers U2 connected in an usb hub to the raspberry pi.
I have a question.
The 2 antminers U2 are mining, but they are using default bfgminer.
I would like to know if you recommend me better to use cgminer, and where can i find a tutorial for installing it.
I just installed last minepeon version for raspberry pi, and then just setup the pool url with user and pass, and its mining, but i dont know if its better to use cgminer or not.
Thanks!
Ok, thx!
I have raspberry pi with minepeon (MinePeon-0.2.4.6-RaspberryPi.img).
Installed it into a sd card, and i use browser to access minepeon.
I have to antminers U2 connected in an usb hub to the raspberry pi.
I have a question.
The 2 antminers U2 are mining, but they are using default bfgminer.
I would like to know if you recommend me better to use cgminer, and where can i find a tutorial for installing it.
I just installed last minepeon version for raspberry pi, and then just setup the pool url with user and pass, and its mining, but i dont know if its better to use cgminer or not.
Thanks!
In my experience, there is no significant difference between the two insofar as performance is concerned. Your only differences will be features, and for your needs it doesn't sound like it matters. Installed it into a sd card, and i use browser to access minepeon.
I have to antminers U2 connected in an usb hub to the raspberry pi.
I have a question.
The 2 antminers U2 are mining, but they are using default bfgminer.
I would like to know if you recommend me better to use cgminer, and where can i find a tutorial for installing it.
I just installed last minepeon version for raspberry pi, and then just setup the pool url with user and pass, and its mining, but i dont know if its better to use cgminer or not.
Thanks!
I have raspberry pi with minepeon (MinePeon-0.2.4.6-RaspberryPi.img).
Installed it into a sd card, and i use browser to access minepeon.
I have to antminers U2 connected in an usb hub to the raspberry pi.
I have a question.
The 2 antminers U2 are mining, but they are using default bfgminer.
I would like to know if you recommend me better to use cgminer, and where can i find a tutorial for installing it.
I just installed last minepeon version for raspberry pi, and then just setup the pool url with user and pass, and its mining, but i dont know if its better to use cgminer or not.
Thanks!
Installed it into a sd card, and i use browser to access minepeon.
I have to antminers U2 connected in an usb hub to the raspberry pi.
I have a question.
The 2 antminers U2 are mining, but they are using default bfgminer.
I would like to know if you recommend me better to use cgminer, and where can i find a tutorial for installing it.
I just installed last minepeon version for raspberry pi, and then just setup the pool url with user and pass, and its mining, but i dont know if its better to use cgminer or not.
Thanks!
HW Error increased from 3 to 6 in 46 min
While that's probably an acceptable error percentage, since you're underclocking, you should probably be seeing none, especially in light that I have 16 right now overclocked to 2.4 with no errors.
HW Error increased from 3 to 6 in 46 min
yeah I was reading that alotof people do that . It's just that Ijust started with this kind stuff. I orientated myself on the adafruit raspberry pi mining tutorial in conjunction with the PiMiner for the 6x2 display. They worked with config. files nice and need in autostart no monitor needed. I liked that idea so I basiclly stayed on that path. Try to not get to crazy confused by all this;)
ahh ok awesome I put down the clock level from 250=2GH/s to 225=1.8 GH/s and the HW errors droped from 70 after 15min mine run to 3HW error after 15 min run... Can we now automaticly point our fingers at the USB Hub and say "BAD USB HUB" or is that not prove enough to blame just the hub for th errors. As I understand, more gh/s more needed energy?
Unfortunately, no. There could be any number of reasons for low power. I've had hubs that didn't like to give good power to certain ports. It could also be bad voltage regulation on the miner itself. The only way to be 100% certain is to take the hub out of the equation.
Also, yes, .bat files are the way to go.
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