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Author Topic: GekkoScience 2Pac BM1384 Stickminer Official Support Thread  (Read 146967 times)
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Psychopathic
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August 10, 2018, 09:07:24 PM
 #2021

I did some homework before I posted, and then I did more homework as I waited. Hopefully it helps someone somehow
+ 1million for that http://www.sherv.net/cm/emo/word/congrats-smiley-emoticon.gif

You are one of the few newbs here in a long long time who knows how to learn: 1st research and *then* ask questions. Most just say "give me a fish!" (a single answer). Ja, we'll give you a fish - a fish smack in the head. You asked "teach me to fish" (how does is work), lo and behold -- you get teachers.

I really try, I'm an AV installer by trade so I'm familiar with troubleshooting. If you mess with something and it stops working, try and set it back to last known good settings. If you can't, soft reset. If that doesn't work, factory reset. If you can't, call tech support and keep trying while you're on hold for 40 minutes. If no tech support, fuck with it until it works. I read through like 50 pages of this thread while I was waiting, hence the 8 updates on my original post haha


Also, update on my 2pac: I switched the to a different usb port than I was originally using before I went to bed last night and left the stick at 100MHZ at 1.32v. Checked on it before I went to work, it was down to 3.5GH/s, don't remember how many HW errors but I'd assume there were a few and it only gathered like 3,000 shares so it stopped really hashing right after I went to bed. That was about 7 hours ago now. Unplugged the stick and plugged it back in, checked volatge and it was 1.34 (didn't touch potentiometer) and restarted cgminer, been hashing 100MHZ at ~10GH/s all day but I've got about 9 HW errors...are those from getting too much power?
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VectorSigma
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August 11, 2018, 05:19:07 AM
 #2022

My Gekko is not allowing 5V to come through its connector. 
 
  • Using a multi meter I've learned how to dial in the VCore voltage.
     
  • Using a USB meter, I've learned regardless if I’m using my powered hub, direct connection USB 3.0 ports or direct connection USB 2.0 ports, the Gekko is only flowing 4.6 - 4.85V instead of 5V.
     
  • The under volting is causing it to draw more amps to do the same work.
     
  • Regardless if I set the vcore to 1.4 or 1.46, when I set the frequency to 250, the amp draw hits 2.5A, and either the USB system or the computer shuts it down.
     

All the tables in the PDF guide calculate to a consistent 5V.  So unless there is a way for the Gekko to pull 5V, there’s no way to clock the frequency above 225, nor turn up the vcore voltages to hit higher frequencies.  And, at lower frequencies, it’s running hotter because it has to work harder to pull the load it needs. 

Do you have any suggestions to adjust the Gekko so it will flow a proper 5V?  I’ve checked this against my USB other devices.  The USB meter is spot-on.
 
sidehack
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August 11, 2018, 06:07:02 AM
 #2023

More than likely, the issue is resistance internal in your hub or meter. The chips will draw the same amount of power (and therefore develop the same amount of heat) regardless of the input voltage.

sidehack
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August 18, 2018, 03:11:42 AM
 #2024

The first step is writing a driver for it.

sidehack
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September 03, 2018, 03:35:45 PM
 #2025

If it's an altcoin, you might be better off asking in the altcoins section. This is more likely a software thing than hardware.

lotwana
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September 05, 2018, 05:51:44 PM
 #2026

Hi guys, I recently got a rpi 3b+ and a Gekko 2pac, I have a few questions.

After setting up I started mining LCC on magnificent pool but without fail one of 2 things happens, either the heatsink heats up excessively to the point where I can't hold my finger on it for 2 seconds at 10 - 11 GH/s or it stays cool but only reaches 400 - 500 MH/s. How do I solve both of these?

The potentiometer, why is there no solid documentation on how it works? How does it work?

On cgminer, I don't have the Panel with USB management and all other options, how do I get this?
rainyday723
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September 05, 2018, 09:35:51 PM
 #2027

I'm trying to set this up but https://curl.haxx.se/gknw.net/rm/7.33.0/dist-w32/curl-7.33.0-devel-mingw32.zip is a dead link and curl's download page has curl-7.33.0.zip but not any of this -devel-mingw32 and I can't seem to find it anywhere
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September 05, 2018, 10:47:36 PM
 #2028

Before building for Windows, I'd suggest downloading one of the already-built builds.

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September 06, 2018, 02:11:29 AM
 #2029

I'm about halfway through building from what was listed on page 1 here would that cause an issue with the already built builds? also where can I download those?
sidehack
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September 06, 2018, 03:26:00 AM
 #2030

Links are in the first post, in the same vicinity as the build instructions.

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September 06, 2018, 05:24:28 AM
 #2031

What would be a good replacement USB hub for the RPi over the Superbpag?
Mine died, and you can't get those anymore.
Preferably something that can handle up to 5 sticks.
bitdigfun
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September 06, 2018, 08:06:51 PM
 #2032

anyone has also issue with using multiple stick on a usb port not working?
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September 06, 2018, 08:47:21 PM
 #2033

anyone has also issue with using multiple stick on a usb port not working?

Yes, that is common issue. A pair of more of these will easily pull more power than most common hubs can supply. Even a single stick can exceed the capacities of many hubs if the voltage and frequency are increased much.

There's an entire thread dedicated to hubs that work well with these:
https://bitcointalk.org/index.php?topic=1779423.0

Good luck, and happy hashing!
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September 15, 2018, 06:12:42 AM
 #2034

I spotted an updated version of cgminer upstream.  

Pulled in those changes with some outstanding local updates.

No need to rush to install this update (abe37de).

Windows build:
http://23.108.83.14/images/cgminer-4.11.1-windows-gekko-abe37de.7z

Notes:

Merged in upstream cgminer 4.11.1
- ready for the latest in pooling technology and hardware.

Added some miscellaneous items for future device support.

Slight improved performance on multiple devices off one cgminer instance.
- tweaked work tread priority.
- stopped retrying on non responsive chips.

Threw in a sample windows .bat file for those still lingering on that platform.

for the linux side:

rename cgminer folder -> clone (see first post) -> autogen -> make
or
pull -> make clean -> autogen -> make

* if you have trouble, move back to last running version.  you made a copy of it right?



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September 16, 2018, 02:34:11 AM
 #2035

Hi guys,
           I recently purchased a GekkoScience 2Pac BM1384 Stickminer from ebay. I configured it to work with ckpool and cgminer. It worked perfectly. But since yesterday I get the following messages.

No devices detected!
Waiting for usb hotplug devices...

https://imageshack.com/a/img923/3306/Tx0QPR.png
https://imageshack.com/a/img923/6743/Y3Lvjz.png

the device is detected by windows..

https://imageshack.com/a/img922/8021/speIE0.jpg
https://imageshack.com/a/img924/9499/u6Tv4d.png

Please help me to figure out the problem..

Thank you.
vh
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September 16, 2018, 04:21:39 PM
 #2036

Hi guys,
           I recently purchased a GekkoScience 2Pac BM1384 Stickminer from ebay. I configured it to work with ckpool and cgminer. It worked perfectly. But since yesterday I get the following messages.

No devices detected!
Waiting for usb hotplug devices...

...

the device is detected by windows..

...

Please help me to figure out the problem..

Thank you.

A couple of items to try:
        1) reinstall the zadig driver: start zadig -> options -> list all devices -> select the 2Pac -> reinstall
        2) restart your machine.
        3) remove the extension cable.
        4) run in verbose/debug and read through the logs for hints.
        5) try on a different machine (ideally linux based) to confirm the usb miner is healthy.

dinu_hasith
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September 17, 2018, 01:30:26 AM
 #2037

Hi guys,
           I recently purchased a GekkoScience 2Pac BM1384 Stickminer from ebay. I configured it to work with ckpool and cgminer. It worked perfectly. But since yesterday I get the following messages.

No devices detected!
Waiting for usb hotplug devices...

...

the device is detected by windows..

...

Please help me to figure out the problem..

Thank you.

A couple of items to try:
        1) reinstall the zadig driver: start zadig -> options -> list all devices -> select the 2Pac -> reinstall
        2) restart your machine.
        3) remove the extension cable.
        4) run in verbose/debug and read through the logs for hints.
        5) try on a different machine (ideally linux based) to confirm the usb miner is healthy.


Thanks vh. I will check and let you know.
flippintwit
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September 18, 2018, 10:33:18 PM
 #2038

Three 2Pacs and a terminus running on 4.11.1.  Looks OK here. TY vh & ch.
MeJustMe
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September 22, 2018, 05:20:40 PM
 #2039

Hi there, i recently get 3 gekko 2 pac, 2 of them are working good whether i connect them to pc or raspb. Got some powered hubs also. Unfortunately the third don´t start even if i plug him solo on hub. Its shows it, at ´list all  know devices´ and keep showing “USB init, open device failed” and “you don’t have privilege to access.
Looking to voltage its shows a big diference from the other 2.
it shows  : 0.49 in the last asic voltage, 0.77 the other with a total of 1.26 of total string. Dont know what to do, do you thing its broke ?
Dont know if it because hub, but i have 1 gekko and 2 antminer u2 at some time and ok, or do u think i need 2 amps?
sidehack
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September 22, 2018, 08:08:20 PM
 #2040

Even though that's literally the most common problem anyone ever has, this is getting to be a pretty long thread and isn't as searchable as one might hope.

Increase the voltage slightly and try again.

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