ANTMINER U3 Discussion and Support Thread

[Iskavan001]

I unplugged and replugged into my powered hub, and my desktop, all ports. 2.0 and 3.0

[Visvas]

To the ongoing discussion on cgminer: Currently using cgminer 4.9 with the options --au3-freq 245 --au-volt 785, working just fine on windows.

Had two U3s for a few weeks now, tested both on my windows and linux setup with cgminer 4.9. They are easy enough to use after cgminer got support for them and extremely silent, compared to for instance my old butterfly jalapeno. But, they are not so very stable or well performing, but it varies a lot. For the most port, one of them has given me an average around 57-58 gh/s, the other one around 45-46, consistent across machines. And one usually zombies every day or two. Now suddenly, they have both been averaging around 57-58 for the last 30 minutes after i unplugged for a little while and restarted cgminer.
Using the power supplies that came with the units, bought from cryptocrane on amazon.com. Bit hard to understand whats going on with these units and their performance...

For some reason they average higher on my windows box than ubuntu 14.04, a little difference in hardware though. Faster wireless on the windows machine as well.

[Iskavan001]

visvas what do you type exactly? I have to be missing something stupid.

[Visvas]

cgminer.exe -O username:pass -o stratum+tcp://pool:port --au3-freq 240 --au3-volt 785

the latest 4.9 version downloaded from the compiled binaries folder. If you have multiple cgminer versions, like me, make sure you're in the right directory as well:)

[Iskavan001]

Visvas, your code is different from every other guide ive found, sadly it still does not work for me. Thanks though.

[dogie]

Visvas, your code is different from every other guide ive found, sadly it still does not work for me. Thanks though.

http://tinypic.com/r/ezg1g8/8

so on 4.8 if i unplugg the u3 i get this, and if i replugg and list devices it gives me- Usb List: failed to open :10

Probably a hardware issue, most likely vreg bugging out.

Hmm, the lock is a separate issue and usually requires a windows restart to clear. Then replug and check zadig again because it can drop.

[Iskavan001]

yeah tried that, and downloaded an older version of zadig to try that.

[dogie]

yeah tried that, and downloaded an older version of zadig to try that.

I'm out of ideas, sorry. Could be anything software wise causing it, or simply hardware. Please contact BitmainWarranty if you would like to arrange a replacement (if you bought directly from Bitmain). Else, contact your reseller.

[Visvas]

Visvas, your code is different from every other guide ive found, sadly it still does not work for me. Thanks though.

What version of cgminer and OS are you on? Also, have you used zadig to replace the usb drivers for U3? When you say it's not working, what kind of error do you get?

Thats the switches relevant to UE3 in the Readme of the latest cgminer, but yes, i know all of the old guides out there. cgminer addedd native U3 support in 4.8 release.
https://github.com/ckolivas/cgminer

latest build, using this on my windows machine.
http://ck.kolivas.org/apps/cgminer/

[Iskavan001]

If you read back to previous posts i believe pages 20 and 19 i begin my quest to get this working. So you can get idea of what ive tried. I use windows 7 though, and ive tried it on rapberry pi raspbian. I have used every version of zadig i can find and ive tried 3.1 .3.8, antiminers cgminer and 4.8 and 4.9 of cgminer.

SO i was repackaging this to attempt to send back to amazon and i notice the 4 screws in the fins on the bottom are not even half way in, should they be screwed all the way in? things life up on the inside when i press them.

[darkstarwars]

I am trying to run this from the command line in the cgminer 4.8 directory

cgminer.exe --bmsc-options   115200:0.54  –o   stratum.antpool.com:3333
-u(myuser) -p(mypwd)   --bmsc-voltage   0800    --bmsc-freq   0982 --startdiff   6

And I keep getting unrecognized error on all of the options.

Can anyone fill me in what am I doing wrong?


And once it goes ZOMBIE, is there another way to reset it without reseating the usb cable?

[Visvas]

I am trying to run this from the command line in the cgminer 4.8 directory

cgminer.exe --bmsc-options   115200:0.54  –o   stratum.antpool.com:3333
-u(myuser) -p(mypwd)   --bmsc-voltage   0800    --bmsc-freq   0982 --startdiff   6

And I keep getting unrecognized error on all of the options.

Can anyone fill me in what am I doing wrong?


And once it goes ZOMBIE, is there another way to reset it without reseating the usb cable?

As far as i understand it, the guides showing you those settings are quite outdated. After 4.8 you don't really need to give any switches to get u3 to work pretty well i believe. And if you run cgminer.exe --help you'll see the available options. For mye 4.9, its the --au3-freq and --au3-volt thats relevant. And for those, the parameters are straightforward decimal numbers. 785 to specifiy 785 mV and 240 to specify frequency for instance. Just a few posts back i give an example of what i have working with  UE3 and cgminer 4.9

You could try something like cgwatcher to automate fixing and monitor your mining, with regards to your (too normal with ue) zombie problem. But for me that didnt work to well, cgwatcher freezes my whole machine up...

[Iskavan001]

Amazon paid for the shipping all is well, they gave me my money back. SO the question now is for 100$/under should i attempt my luck at another u3 or is there something better i can get?

[dogie]

I am trying to run this from the command line in the cgminer 4.8 directory

cgminer.exe --bmsc-options   115200:0.54  –o   stratum.antpool.com:3333
-u(myuser) -p(mypwd)   --bmsc-voltage   0800    --bmsc-freq   0982 --startdiff   6

And I keep getting unrecognized error on all of the options.

Can anyone fill me in what am I doing wrong?


And once it goes ZOMBIE, is there another way to reset it without reseating the usb cable?

As far as i understand it, the guides showing you those settings are quite outdated. After 4.8 you don't really need to give any switches to get u3 to work pretty well i believe. And if you run cgminer.exe --help you'll see the available options. For mye 4.9, its the --au3-freq and --au3-volt thats relevant. And for those, the parameters are straightforward decimal numbers. 785 to specifiy 785 mV and 240 to specify frequency for instance. Just a few posts back i give an example of what i have working with  UE3 and cgminer 4.9

That's exactly correct, for modern cgminer versions you shouldn't need any arguments.

[Phosphorous]

The past week I have been asking for an RMA # to return my U3 from Bitmain and others. I keep getting responses on where to send the U3 but never an RMA #. Do I need an RMA # or not?

[clarkjhaley13]

I have a U3 miner. I get a consistent 73gh/s out of it. I use a barrel connector wired to a molex 4 pin into a standard atx psu. Biggest difference is heavier wire to the plug. I am running cgminer 4.6.1 using the following line:  cgminer.exe --bmsc-options 115200:0.5 -o stratum+tcp://yourpool -u workername -p password --bmsc-freq 0B82 --bmsc-voltage 0800   I can actually get it to run higher than this and stable but the gh/watt ratio is bad so i don't.




if it matters. It is hooked to a Windows 7 64bit system via a usb 2.0 port. Oh, I did throw away the garbage usb cable I got with it and opted for a better quality one I had on hand too.

In response to be asked about a donation addy. I do not want donations. This was posted simply because i too had trouble and found something that works. If it works for you just enjoy your hash.

[dogie]

The past week I have been asking for an RMA # to return my U3 from Bitmain and others. I keep getting responses on where to send the U3 but never an RMA #. Do I need an RMA # or not?

Yes and no is the answer. How are you in contact with Bitmain?

[Phosphorous]

The past week I have been asking for an RMA # to return my U3 from Bitmain and others. I keep getting responses on where to send the U3 but never an RMA #. Do I need an RMA # or not?

Yes and no is the answer. How are you in contact with Bitmain?

The have PM'd me on here in response to my PM where I explictly asked if I needed an RMA #, instead they just replied with an address for where to send it. I then called and left a message several days ago asking for an TMA # and no return phone call. I have been holding off for over a week now to send this back. If I don't need an RMA # they need to just say so so I can get this damn paper weight in the mail.

[dogie]

The past week I have been asking for an RMA # to return my U3 from Bitmain and others. I keep getting responses on where to send the U3 but never an RMA #. Do I need an RMA # or not?

Yes and no is the answer. How are you in contact with Bitmain?

The have PM'd me on here in response to my PM where I explictly asked if I needed an RMA #, instead they just replied with an address for where to send it. I then called and left a message several days ago asking for an TMA # and no return phone call. I have been holding off for over a week now to send this back. If I don't need an RMA # they need to just say so so I can get this damn paper weight in the mail.

As long as you include your original Bitmain order ID then you should be good to go. I'm unsure if BitmainWarranty is handling returns from 3rd party sales at the moment. PM them again if you're third party, if not you can send with order ID.

[Visvas]

Soooooo....  The power adapter brick that comes with it almost melted and caught my house of fire.  I started to smell something weird and I picked up the brick, turned it over and found this:
http://imageshack.com/a/img673/4097/zwk6hu.jpg
http://imageshack.com/a/img910/791/PL0Pm4.jpg

So what did I do?  I cut off the barrel plug, soldered it onto a molex, and plugged it back in...

What crap is BITMAIN releasing these days where stock settings may cause a house fire?!  

thats a bit worrying... exact same adapters i got. Very interested if you get any response from them..