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Author Topic: USB-Stick Miner GekkoScience 2Pac and Cgminer starting difficulties  (Read 2402 times)
johannesfritz (OP)
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September 21, 2017, 07:50:07 AM
 #1

Hey guys,
I'm pretty new to mining and I have a Radeon running with Nicehash and it's working finely. Now I bought a Bitcoin USB-Stick Miner GekkoScience 2Pac 5-25 GH/s and it seems to run with cgminer only. Cgminer is not that easy to set up, tbh, it's not user-friendly. So I registered at a pool, and set up a config. Now, cgminer begins mining, but with the GPU. Is it possible to run two mining devices separately and with two different mining softwares and if so, how do I get cgminer to mine only with the ASIC thumb drive?
Thanks in advance for your help guys!
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os2sam
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September 21, 2017, 09:53:19 AM
 #2

If you have a version of CGMiner that supports GPU's then it must be really old and probably doesn't support your ASIC device.  Download the latest CGMiner and see if that works with your USB ASIC.  Make sure you ONLY download CGMiner from the link in the support thread.

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September 22, 2017, 01:39:16 PM
 #3

You can't use the standard cgminer with the 2Pac sticks. You need the special build by VH. The 2Pac support thread has the software link:
https://bitcointalk.org/index.php?topic=1764803
johannesfritz (OP)
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September 25, 2017, 09:23:18 AM
 #4

Thanks to both of you guys. Smiley
johannesfritz (OP)
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September 25, 2017, 09:44:55 AM
 #5

Now, I got the correct cgminer 4.10.0. I understand that I must create a config first. With the incorrect version I got this done quite easily, but when starting the .exe it tells me
"failed usb_init"
"no devices detected"
and it wants "Input server details".
It wants me either to enter the URL, or to quit.
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September 25, 2017, 02:25:34 PM
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All the details to set up cgminer are in the dedicated cgminer thread. Thoroughly read that first and see how you get on.

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johannesfritz (OP)
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September 25, 2017, 02:39:15 PM
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Thanks, will do.
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September 27, 2017, 07:07:41 AM
 #8

Is this the correct thread?
https://bitcointalk.org/index.php?topic=28402.0
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October 08, 2017, 02:01:53 PM
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All the details to set up cgminer are in the dedicated cgminer thread. Thoroughly read that first and see how you get on.
Alright, I took time and read about setting it up. Now it's running. Next issue: After entering the Stratum adress and my name it says "failed_USB init". It lists the GekkoScience device, but it also says 0 USB devices. I run it as an admin and I have installed WinUSB with Zadiq, which worked fine.
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October 11, 2017, 03:11:09 PM
 #10

Check under Device Management in Windows and make sure the GekkoScience 2PAK is showing up all the way at the bottom as a Universal USB Device (something named along those lines.)

You need to make sure that the GekkoScience 2PAK is not accidentally being read as a COM Port Device by Windows.  If you see a COM Port Device that appears to be your GekkoScience 2PAK, simply click the listed Device and uninstall it, then use Zadig again.  Unplug and replug in the USB miner and keep checking that it is actually labeled as a Universal USB Device, which Zadig effectively makes the system read it as rather than a COM Port.

johannesfritz (OP)
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October 12, 2017, 08:38:56 AM
 #11

I checked, it's not listed as a COM device, but as a USB device.
The miner says:
USB init, open device failed, err -3, you don't have privilege to access - GSC device 2:3
GekkScience detect <2:3> failed to initialize (incorrect device?) resetting
wavelengthsf
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October 12, 2017, 01:10:26 PM
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I checked, it's not listed as a COM device, but as a USB device.
The miner says:
USB init, open device failed, err -3, you don't have privilege to access - GSC device 2:3
GekkScience detect <2:3> failed to initialize (incorrect device?) resetting

Run cgminer as administrator and see if that works.

The best way to do this is to open the command prompt as an admin:

Browse to the command prompt shortcut, right click, choose "Run as Administrator"
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October 13, 2017, 02:40:28 PM
 #13

I always run it as an administrator. Might it be the case, that I have messed up my start mining .bat?
wavelengthsf
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October 13, 2017, 05:39:57 PM
 #14

I always run it as an administrator. Might it be the case, that I have messed up my start mining .bat?

What's your batch file look like?
johannesfritz (OP)
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October 13, 2017, 05:56:36 PM
 #15

Start /D "C:\cgmine" cgminer.exe -o stratum+tcp://stratum.slushpool.com:3333 -u sohnes.worker1 -p anything -I 10 -d 0 –temp-target 80 –auto-fan gpu-memclock 100
 
johannesfritz (OP)
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October 23, 2017, 07:40:15 AM
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I always run it as an administrator. Might it be the case, that I have messed up my start mining .bat?

What's your batch file look like?

Does it look faulty to you?
wavelengthsf
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October 23, 2017, 12:55:01 PM
 #17

Start /D "C:\cgmine" cgminer.exe -o stratum+tcp://stratum.slushpool.com:3333 -u sohnes.worker1 -p anything -I 10 -d 0 –temp-target 80 –auto-fan gpu-memclock 100
 

Yes. The -d 0 flag isn't needed at all. You're using GPU commands with the 2Pac, which wont work. Use this:

Start /D "C:\cgmine" cgminer.exe -o stratum+tcp://stratum.slushpool.com:3333 -u sohnes.worker1 -p anything
johannesfritz (OP)
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October 24, 2017, 05:19:14 AM
 #18

Thanks, applied it. Results in: failed usb_init. Gets a bit frustrating by now. Anyone got any idea, what to do?
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November 25, 2017, 01:44:57 AM
 #19

did this ever get resolved?
I have the same issue on my raspberry pi
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