ANTMINER U3 Discussion and Support Thread

[Xumpy]

Try this:

Code:

cgminer.exe --bmsc-options 115200:0.65   -o xxx -u xxx  --bmsc-voltage 0800 --bmsc-freq 1306

That's it! Mining at 60GH on a raspberry pi.

Thanx mate!

[CryptoCrane]

Try this:

Code:

cgminer.exe --bmsc-options 115200:0.65   -o xxx -u xxx  --bmsc-voltage 0800 --bmsc-freq 1306

That's it! Mining at 60GH on a raspberry pi.

Thanx mate!

Likewise, that fixed it for me too! Thanks!

[Speedster1978]

I'm trying to figure out a weird issue...

Originally I had issues getting my U3 to work on my desktop, so I got it up and going on my laptop... works great... problem is when I have to use my laptop for work, I have to VPN into my work, so I can't get pools to work anymore... so I had to move it back to my desktop...

I get CGMiner to work on my desktop where it recognizes the U3 now, after wiping out all device manager hidden devices and what not with it unplugged... problem is now it can see the device but it keeps saying:

Pool 0 difficulty changed to 32
And it never starts up... my URL, User, and Password is the exact same as on my laptop, but doesn't seem to work.
I made sure it's allowed through the firewall as well...

Any ideas on what I'm doing wrong now?

[Phosphorous]

When is Bitmain going to merge U3 support into the main CGMiner? The CGminer that supports U3 does NOT work with my Rockminer!

[Speedster1978]

I'm trying to figure out a weird issue...

Originally I had issues getting my U3 to work on my desktop, so I got it up and going on my laptop... works great... problem is when I have to use my laptop for work, I have to VPN into my work, so I can't get pools to work anymore... so I had to move it back to my desktop...

I get CGMiner to work on my desktop where it recognizes the U3 now, after wiping out all device manager hidden devices and what not with it unplugged... problem is now it can see the device but it keeps saying:

Pool 0 difficulty changed to 32
And it never starts up... my URL, User, and Password is the exact same as on my laptop, but doesn't seem to work.
I made sure it's allowed through the firewall as well...

Any ideas on what I'm doing wrong now?

I made an account with GHash.IO and it's working great... wondering why Slush's Pool that I prefer to be on isn't working for me anymore

[Nightshiftgirl]

Speedster 1978  I can not get into several pools either,  The setting only work on one pool for me. I have tried Slush's pool several times  No joy

Xumpy I am using your setting and my GPH went up,  I was getting about 30Gh each on two U3s, Now I am getting 45 Gh on each, still not the advertised 63 each.

Thanks for the support I get on this forum.

Barbara

[Nightshiftgirl]

This Post is really for Bitman.

If the goal of this U3 miner is to help decentralize mining, you have missed a large target.  I am a 67 year old retired female. I purchased two U3's on line (eBay I could not afford your minimum order)  because I thought it would be fun to play with and addition to the trading that I do.  (small amounts I am retired).

 That said I know other people my age would be interesting in something like this if it was much more Plug and Play.  It is kind of fun watching it work.

It is hard to set up and I have found through the help of this Forum and not Bitmain how to get the U3s to run at about 45Gh each.

Now at the same time I ordered  s3+ from an eBay seller that was selling them new. Again shipping for only one miner is too much. It is not here yet so I can not comment on that.

That being said I feel cheated by the performance of the U3, I did not get what I paid for and I can not return them.

I noticed that you are offering coupons, but since I did not buy from you directly I do not get any.

I would be happy if you would give me a 400.00 coupon for a S4 and I would order it.  Or of course you could send me a free U3 to make up for the GH  I am not getting.


Barbara

[polymer_city]

This Post is really for Bitman.

If the goal of this U3 miner is to help decentralize mining, you have missed a large target.  I am a 67 year old retired female. I purchased two U3's on line (eBay I could not afford your minimum order)  because I thought it would be fun to play with and addition to the trading that I do.  (small amounts I am retired).

 That said I know other people my age would be interesting in something like this if it was much more Plug and Play.  It is kind of fun watching it work.

It is hard to set up and I have found through the help of this Forum and not Bitmain how to get the U3s to run at about 45Gh each.

Now at the same time I ordered  s3+ from an eBay seller that was selling them new. Again shipping for only one miner is too much. It is not here yet so I can not comment on that.

That being said I feel cheated by the performance of the U3, I did not get what I paid for and I can not return them.

I noticed that you are offering coupons, but since I did not buy from you directly I do not get any.

I would be happy if you would give me a 400.00 coupon for a S4 and I would order it.  Or of course you could send me a free U3 to make up for the GH  I am not getting.


Barbara

Send me you bitmain ID and I will send you S4 coupons. How many? There's no chance I'm going to use 154 of them!

[Nightshiftgirl]

Sent my Id,  thanks
Barbara

[Speedster1978]

This Post is really for Bitman.

If the goal of this U3 miner is to help decentralize mining, you have missed a large target.  I am a 67 year old retired female. I purchased two U3's on line (eBay I could not afford your minimum order)  because I thought it would be fun to play with and addition to the trading that I do.  (small amounts I am retired).

 That said I know other people my age would be interesting in something like this if it was much more Plug and Play.  It is kind of fun watching it work.

It is hard to set up and I have found through the help of this Forum and not Bitmain how to get the U3s to run at about 45Gh each.

Now at the same time I ordered  s3+ from an eBay seller that was selling them new. Again shipping for only one miner is too much. It is not here yet so I can not comment on that.

That being said I feel cheated by the performance of the U3, I did not get what I paid for and I can not return them.

I noticed that you are offering coupons, but since I did not buy from you directly I do not get any.

I would be happy if you would give me a 400.00 coupon for a S4 and I would order it.  Or of course you could send me a free U3 to make up for the GH  I am not getting.


Barbara

Send me you bitmain ID and I will send you S4 coupons. How many? There's no chance I'm going to use 154 of them!

Can you apply more then one coupon to an S4 order or just one? With this coupon, instead of $1400, it would just be $1000 right?

[magicstix]

I also bought one from Minersource.net.   I can only get mine to hash at like 2-12GH/s and it is very very unstable at best.   I was probably the first one to speak to your support guy on the number from my S3.   He remoted in and was able to find a few freq's that worked but nothing was stable at all.   So basically it is a pretty paper weight.....   I was so looking forward to these too....


Bitmain Tech and Minersource User:   (Mailed to person from Bitmain.  As it is my email addie.)

[magicstix]

Just a preliminary post, "BUT" I may know why these things aren't hashing correctly and I don't think it has anything to do with the chips or power.

[Speedster1978]

Just a preliminary post, "BUT" I may know why these things aren't hashing correctly and I don't think it has anything to do with the chips or power.

Can you give us more information?

[dogie]

Can you apply more then one coupon to an S4 order or just one? With this coupon, instead of $1400, it would just be $1000 right?

Just one coupon per S4 order.

[Nightshiftgirl]

Dogie,
 Is that one coupon per S4 or one coupon per total order?
Barbara

[zsmith]

Try this:

Code:

cgminer.exe --bmsc-options 115200:0.65   -o xxx -u xxx  --bmsc-voltage 0800 --bmsc-freq 1306

Using these settings raised my GH/s from 40 to 50 but now I am getting large number of Hardware Errors saying Invalid Nonce.  The vast majority of all frequency settings spit out this same error except for 0755 voltage 0782 freq and 0755 voltage and 0882 freq, but I only get 30 and 40 GH/s on these settings.

Also, I haven't been able to get it to run for more than 12 hours without going ZOMBIE or just sitting there hashing at 250 MH/s.

Any ideas before I just get rid of this thing?

EDIT:  Lasted for a whole 7 minutes at 50 GH/s, now is ZOMBIE.  Going back to the 0755 setting for a whopping 40 GH/s. 

[ptr727]

Hi, asking for some help getting my two new U3's up and running.

Using this guide:
https://www.bitmaintech.com/files/download/AntMiner-U3%20user%20guide.pdf

Running on W2K12R2 on ZBOX ID84 Atom CPU, bitmain cgminer does not detect U3, seems to be a timing problem.
Same machine running official CGMiner 4.7.1 using old USB blockerupter works fine.

Running on Win8.1 x64 on Corei7, bitmain's cgminer-run-windows-20141027 detects U3, but keeps reporting "Waiting for work to be available from pools".
Debug log shows the real error is "JSON stratum auth failed", "Method 'mining.extranonce.subscribe' not found".
Log here: http://pastebin.com/gqrN6RmK

Using the real CGMiner 4.7.1 and the old blockerupter works fine with stratum.antpool.com and with stratum.bitcoin.cz.
Seems to me that something with bitmain's 4.6.1 based CGMiner and the stratum pools don't like each other.

Any ideas?
P.

[ImCrazyOne]

Try this:

Code:

cgminer.exe --bmsc-options 115200:0.65   -o xxx -u xxx  --bmsc-voltage 0800 --bmsc-freq 1306

Thank you, This seemed to fix the GH/s issue. Now my U3 is mining around 61Gh/s. Now i need to figure out how to get multiple U3 miners working in one cgminer. Somebody suggested that once cgminer is running with one U3 just keep plugging more miners and it will detect them. It is working like this for about 5 to 15 minutes and then in random order they will all turn ZOMBIE and can not initialize incorrect device. So i unplug the ZOMBIE miner and plug it back in and it will recognize it and start mining, but soon after it will be ZOMBIE again. I have connected four U3 miners and i can mine only with single miner. If anyone has a tip or instructions on how to mine with multiple miners or how to get rid of the ZOMBIE issue please let me know.
here is the screenshot https://www.dropbox.com/s/no8s8e2i3aze1p1/fixed%20ghs%20but%20multiple%20miner%20turns%20ZOMBIE.png?dl=0

[ImCrazyOne]

Try this:

Code:

cgminer.exe --bmsc-options 115200:0.65   -o xxx -u xxx  --bmsc-voltage 0800 --bmsc-freq 1306

Using these settings raised my GH/s from 40 to 50 but now I am getting large number of Hardware Errors saying Invalid Nonce.  The vast majority of all frequency settings spit out this same error except for 0755 voltage 0782 freq and 0755 voltage and 0882 freq, but I only get 30 and 40 GH/s on these settings.

Also, I haven't been able to get it to run for more than 12 hours without going ZOMBIE or just sitting there hashing at 250 MH/s.

Any ideas before I just get rid of this thing?

EDIT:  Lasted for a whole 7 minutes at 50 GH/s, now is ZOMBIE.  Going back to the 0755 setting for a whopping 40 GH/s. 

I only have ZOMBIE issue when i plug more than one miner to my usb hub. Then random miner will turn zombie. Wierd, seems like software issue not hardware issue, Maybe weak power supply? not sure

[zsmith]

I just have the one miner hooked up to the computer's USB port.  It has never lasted through the night, every morning it is no longer hashing.   Other than today, it's only went Zombie one other time, usually when "it's not hashing" it just sits there showing 120 MH/s or 250 MH/s on cgminer and zero hashrate at the pool.   

Between all the downtime and the low hashrate, I'm averaging 18.33 GH/s per day on this device.

I agree that it sounds like a software issue.  I think the driver and/or the cgminer fork need more work.

EDIT:  Just went ZOMBIE again, right after I made this post.  Restarted cgminer and it never found the device, restarted computer same deal.  Changed the Baud rate from .65 back to 1, ran cgminer, still nothing.  Pulled USB and Power Cord then plugged power then USB back in, ran cgminer again, now is hashing back away at 40 GH/s.   That lasted about 10 minutes.  For some reason, ever since I changed the settings to 0800 and 1306 and .65, it won't run for more than 10 minutes without going zombie, even though I changed the settings back to what it was sort of working on before.  I've just unplugged the miner for now.  I'm going to try and install it on one of my other computers tomorrow to see if that makes a difference before I give up on this device and Bitmain forever.