Topic: Antminer U3 w/cgminer & Windows 7 64-bit. Some help given but some needed too. (Read 24723 times)

what coin are you mining with that diff

Your probably right. I most likelt fabricated the screenshot and am lying about the config just to screw with people.

Course you will never actually know the truth as you apparently are unwilling to simply ask me for some documentation on how I got the settings for my bat line and seeing as instead all you want to do is bash at me I am not gonna ever offer you that info.

Anyone else wants it send me a pm and I will provide the links.

Have a nice day. 

their is no volate for 0800 and no freq 0B82

LIES all these settings are a bunch of bull . those configurations are even in the u3 manual .

my antminer u3 still can't detected usb devices. how can?need help.

Thanks! I used this, and pluged the U3 directly into the usb of the computer and it has not gone zombie since. Hashing steady at 75

I ran 2 of these for about 6 months. I used a atx psu to power them, ran the fan directly to the psu for power with an adapter and never had an issue with them once I did these things. I ran them and regularly got 73gh/s from them. And yes I actually posted in the original thread about this including screen shots.

I am so happy i ran across this page i finally got my antminer u3 to start hash!! thanks alot
now its time for a ice cold beer

I'd expect that to kill it unless you are running it in the snow.
0B82 = 300Mhz

I can run my 2 on default all day (225Mhz) without problems with cgminer 4.9.1 - about 54GHs - but after I shift the voltage up to 0.8v I get failures that require replugging them - I guess they overheat and kill the USB somehow.
Neither a USB reset nor a chip initialisation clears it - it has to be an unplug, replug.

I'm using a Seasonic 1200W platinum with PCIe<->U3 cable from my Jalapeno from long past - that doesn't heat up.
The plugpack heated up to 50C+ the first time I used it so I stopped using the plug packs (the U3 heatsink was 45C so I thought that was ironic)

Also, if you are running the U3 on the computer with screensaver or power saver mode, when those feature kicks in, it may cause the U3 to go zombie...

If you are connecting the U3 to USB3 port, please try it with USB2 port and vs..

You should be at least 59-62...

try this:

cgminer.exe --bmsc-options 115200:0.5 -o stratum+tcp://stratum.server.server:20123 -u username -p x --bmsc-freq 0B82 --bmsc-voltage 0800

pause

I finally got mine to work.

I found this file:
cgminer-run-windows-20141110.zip   detect 4 chips during device detect procudure for U3
at:
https://www.bitmaintech.com/support.htm?pid=007201404130633105772QFG6R2u0635

so I decided to use it to test my U3.  It started hashing right away. So I edited the autorun.bat for my worker and it's going at about 49 Gh/s now.

thanks for the help

Check out the other thread. CGMINER 4.9.0 works better.

https://bitcointalk.org/index.php?topic=827356.new;topicseen#new

I just got one of these, too.  I can’t get cgminer to see it.  I’m on Windows XP with the “official” Bitmain cgminer 4.6.1 and the Zadig driver installed.  The Device Manager shows USB device “CP2102 USB to UART Bridge Controller".  In cgminer if i hit “U” for USB devices then “L” for list all know devices I get nothing.  Running cgminer from the .bat gives “No devices detected!’ and “Waiting for USB hot plug devices or press q to quit.”  Any ideas?  Why does device manager see it but cgminer doesn't?

Thanks

Thanks Clark

Running your config and avg is 75 Gh/s.  I too am using molex to barrel.  I hope this fixes my zombie issue.

I have one of these and it works very well after some figuring out. First is the power source. That brick it came with just don't have big enough wires to supply it properly so I created a 4 pin molex to barrel connector lead for it and use a atx psu for it. Secondly is the command line for launching it.

cgminer.exe --bmsc-options 115200:0.5 -o url -u username -p password --bmsc-freq 0B82 --bmsc-voltage 0800

Here is a screen of my unit in action. You can judge for yourself.



I have 2 more coming (U3) that will be here middle of next week as well. Hope this helps.

How did you configure the main cgminer brach 4.6.1 to use bmsc options? I just checked out 4.6.1 and tried complining with bmsc but only icarus is available.

Hello All,
Appreciate all the help I was able to find in this forum, I'm a newbie in mining, got me an Antminer U3, ran the default settings for 2 weeks using cgminer 4.8.0 ... hash rate between 45-50 Gh/s. Today, I managed to get the best out of my miner with these new settings 55-67Gh/s combined with cgminer 4.6.1, I thought of sharing as it seems to run with no HW errors, several other combinations gave few-many HW errors.

I'm using cgminer 4.6.1, it seems to configure the U3 miner better than cgminer 4.8.0

cgminer.exe --bmsc-options 115200:0.65 -o stratum+tcp://pool123.abc.com:3334 -u nusername -p x --bmsc-voltage 0850 --bmsc-freq 0D82

Happy mining for all,

I just got my U3 yesterday. I spent some time attempting to set it up on a Win7 x64 machine at work, but ended up having Zombie issues nonstop. I brought it home and set it up with my Win7 x64 VM on my rMBP and it ran beautifully using the 4.6.1 cgminer from BITMAIN and Zadig. I am making the assumption that it is a driver or timing problem and will investigate further from here.

I am currently using --bmsc-voltage 0850 and --bmsc-freq 0982 and achieving 42gh/s using the stock power supply. The U3 is also drawing only 44 watts at the wall with these settings.

I want to thank everybody for the help here.

I have been trying multiple combinations of commands, still have more to go. However I wanted to take the opportunity to let you guys know what I have benefited from:

1. cgminer.exe --bmsc-options 115200:1 -o POOL URL:PORT -u USERNAME -p PASSWORD --bmsc-voltage 0755 --bmsc-freq 0882
Outcome : Works stable, for days, but lower Hashrate 32-45 GH, does not meet my expectations for the devices advertised speed.

2. cgminer.exe --bmsc-options 115200:0.65 -o POOL URL:PORT -u USERNAME -p PASSWORD --bmsc-voltage 0800 --bmsc-freq 1306
Outcome : Works very stable and remains close to a 50/55 GH rate but generates more rejections than I would like. This is my go to command as I can get the device perform for a few days before it "Zombies" out and I need to unplug/replug in the USB and start the command again.

3. cgminer.exe --bmsc-options 115200:0.65 -o POOL URL:PORT -u USERNAME -p PASSWORD --bmsc-voltage 0800
Outcome : So far so good. Maintains a 56-64 GH rate but I have not had the ability to test this command for more than a day or so. This command does generate a 15% rejection rate. Wish us luck.

4. cgminer.exe --bmsc-options 115200:0.5 -o POOL URL:PORT -u USERNAME -p PASSWORD --bmsc-voltage 0800 --bmsc-freq 1306
Outcome : Maintains a 47-56 GH rate with an 11% rejection rate.

5. cgminer.exe --bmsc-options 115200:0.5 -o POOL URL:PORT -u USERNAME -p PASSWORD --bmsc-freq 0B82 --bmsc-voltage 0800 --queue 1 --scan-time 30 --expiry 60 --no-submit-stale
Outcome : FAST! Does exceed the the advertised GH rate 66-71 GH, but it is the only command that generate Hardware Errors (AMU0: invalid nonce - HW error)

I am using cgminer 4.6.1, downloaded from BITMAIN. I also used Zadags WINUSB tool.

I hope this does more to help, than confuse and I really appreciate all the help this forum has provided. I'll keep testing some more command combinations and posting the outcome here.