GekkoScience Compac BM1384 Stickminer Official Support Thread

[Cc2Gre]

ps:

sidehack it s an honor to talk with THE MASTER !

[1713503589]

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[1713503589]

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[1713503589]

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[1713503589]

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[1713503589]

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[sidehack]

Shouldn't be an honor. I'm just some dude on the internet.

Also, if you're looking at the oscillator, it's different because the part I originally used on the first batch went out of stock. I provided bitshopper with a different compatible part number, and then started using it myself on later batches. It's a standard 25MHz 1.8V oscillator and has no bearing on your problem.

Most questions that aren't a result of dead or damaged hardware are addressed in the first post of this thread. Like how the potentiometer in the bottom corner of the stick is there to adjust core voltage, which allows you to run a higher frequency. AT NO TIME SHOULD YOU EVER put more than 5.5VDC into the USB jack. Since the buck driver is 5.5V rated and the caps are 6.3V rated, I'm surprised it didn't just explode when you hooked it to 8.5VDC. A regulator's output voltage should not change from a change in input voltage unless something is seriously wrong with the circuit, so that you could get a higher voltage from it with a higher input voltage is a very bad thing. Unless the problem was input power limits from input impedance, where the voltage was bottoming out due to "high" load currents. 350MHz is going to want to pull about 8W which means 5V 1.6A so if your input lines can't handle it you'll see performance issues.

All of this has been addressed, probably repeatedly, in this thread. This thread has been here for a year and is over a hundred pages long. Very few problems by now haven't already been addressed. Do a bit of searching.

And if you try something that destroys the miner, you are doing something very very wrong.

[Cc2Gre]

with only the pot i can't push up than 160 mhz
i used a power lab (5 amp capacity at 5,5v with common masse and without 5V usb) and the current absorbed never exceed 0,75 A on my power...
i try all value of vcore 600 to 800mv

[sidehack]

And you're using the right version of cgminer and the right command line flags?

[Cc2Gre]

of course "gekko" version. very good job for "stock work" at 125mhz

and i have put in a big radiator with 1,8 w/°
i am on multiple forum and the only guy have seriously overclock their model had your's (green) not the black...
or i am very stupid

and please could you answer me of a futur project on 1385 or 1387 ?
If no another board will be sale

[Cc2Gre]

above 150 instable
above 160 170 don't start work

[ZedZedNova]

above 150 instable
above 160 170 don't start work

To be honest, this sounds like a problem with the USB hub you have the Compac plugged into. The Compac I have is plugged into a powered USB 2.0 hub (it's the only device on the hub), the core voltage is ~0.800mV, and I am able to run the Compac at 325MHz. It's drawing more than the USB spec'd current on the port, but the hub seems to be OK.

There have been some good recommendations for powering your Compac in the last few pages, and if you read through the first few pages of posts in this thread you will find a bunch of recommendations for powered USB hubs that work really well with the Compac miner.

For what it's worth, my Compac is stable, and has been for months. I'm "lottery" mining and participating in the gekkorun.de "race."

solo.ckpool.org stats: http://solo.ckpool.org/workers/1KZKt84mNoo3WFyiapRi5NAoi9V5DMi8nr.Compac1
gekkorun.de: http://www.gekkorun.de

Cheers,

- zed

[Cc2Gre]

cgminer -o stratum+tcp://stratum.antpool.com:3333 -u Cc2Gre.1 -p x --compac-freq 145
cgminer-gekko-win32 on this site with novac driver
and it work very good until 160 mhz for long run

it s not the hub because there is no hub !
and i don't use +5V from the usb port but a stabilized laboratory power with 5A reguled and i never exeed 0,75 A consomation
i know that because the laboratory power display volt and ampere
the masses was joined to avoid floating potential for the stability

[sidehack]

Long or short wires? Heavy or thin wires? Capacitor bypass for high current nearby? Providing the same information a third time is, oddly enough, not nearly as helpful as providing new information.

[Cc2Gre]

sidehack

you think a usb cable is better than 1 meter of 2mm² for the power ?
have you a new stickminer projct ?

[Cc2Gre]

i like your work !
but today :the  BM1387 is very impressive
bitman work hard and fast...
i dream you create a new board for us
i know it s a dream... lol

[sidehack]

I think a USB jack on a board with nice beefy power rails and a big capacitor close by, such as you would find on a hub, is better than 1 meter of pretty much any wire. Especially when you're asking it to feed current to a switching regulator. Long wires carry inductance, and inductance opposes current changes; switching regulators have really rapid input current changes. Long wires carry resistance, and resistance means voltage drops at high currets, which mean your regulator could be bottoming out and turning off.

I'm pretty sure this has been covered in the thread already. I know you're not a native English speaker, so I'll try and be nice, but I also get kinda annoyed easily.

[Cc2Gre]

sorry but i love our product/work and the principle.
i think i will order one of your green version in usa and another one on bitshopper to compare them...
sorry but i don't see your answer for your(s) eventual futur project for usb miner...
sorry again but read many hundred pages during several days in English while i m french...
i stop boring you

[sidehack]

If you have asked me a question and I didn't answer it, and then you asked four more times and I still didn't answer it, that's either because I can't answer it or I won't answer it. I figured you'd realize that at some point.

So, my advice for helping solve the problem - if you're going to use long wires from a lab supply, drop a large capacitor (probably at least 220uF, maybe 470-1000) across the 5V and GND pins on the USB plug at the end of the wires you're hooking the stick into. Keep the input voltage below 5.5V; adjust the potentiometer for about 660mV and try a 200MHz clock. If that works, try 700mV and 250MHz, then 740mV and 300MHz. If nothing works, the stick is probably bad (but I won't point fingers) so contact the manufacturer for assistance.

[Cc2Gre]

ok

[w0mp]

I finally got it working with the latest bfgminer.  Anyone having issues with it dispaying the right hashrate?  Mine says "86/48/15 Gh/s" and I am at 150 MHz clock

EDIT:
nm, jsut restarted computer and replugged gekko stick, shows 9-10 gh now

[garethrees]

Just received my GekkoScience Compac from bitshopper.de  (https://www.bitshopper.de/shop/sha-256-miner/usb-miner-bitcoin/compac/)

I have an existing Minera setup which works well so I thought I would try the cgminer-gekko image posted in this thread.

However whenever I plugin the USB Miner I get the following:

Jul 17 09:38:16 moria kernel: [  519.269442] usb 1-1.4: new full-speed USB device number 9 using dwc_otg
Jul 17 09:38:16 moria kernel: [  519.293262] usb 1-1.4: New USB device found, idVendor=10c4, idProduct=ea60
Jul 17 09:38:16 moria kernel: [  519.293329] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jul 17 09:38:16 moria kernel: [  519.293347] usb 1-1.4: Product: Compac BM1384 Bitcoin Miner
Jul 17 09:38:16 moria kernel: [  519.293364] usb 1-1.4: Manufacturer: bitshopperde
Jul 17 09:38:16 moria kernel: [  519.293379] usb 1-1.4: SerialNumber: GS-10000262
Jul 17 09:38:16 moria kernel: [  519.306631] cp210x 1-1.4:1.0: cp210x converter detected
Jul 17 09:38:16 moria kernel: [  519.307898] usb 1-1.4: cp210x converter now attached to ttyUSB0

Which is great but it's followed by:

Jul 17 09:38:20 moria kernel: [  523.045954] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
Jul 17 09:38:20 moria kernel: [  523.046271] cp210x 1-1.4:1.0: device disconnected

I have tried various boot command options to no avail:
slub_debug=FP
dwc_otg.speed=1
usbcore.old_scheme_first=Y

I've also updated the firmware of the PI, updated all of the software packages and updated minera to v0.7.0

Anyone else have the same setup and had this problem?

Regards Gareth

[DigitalCreep]

How would you go about getting a stick repaired? Have two of them and one just stopped working on me. They were overclocked(300Mhz) but with proper ventilation/cooling(front and above). Have tried numerous configs(Win 7 and PI/Minera), adj voltage and freq, hub/no hub and still cant get it working. Other stick works on all configs. Purchased from holybitcoin on 5/26/16

Thanks

[sidehack]

Step one is talk to holybitcoin

[Morguk]

Just received my GekkoScience Compac from bitshopper.de  (https://www.bitshopper.de/shop/sha-256-miner/usb-miner-bitcoin/compac/)

I have an existing Minera setup which works well so I thought I would try the cgminer-gekko image posted in this thread.

However whenever I plugin the USB Miner I get the following:

Jul 17 09:38:16 moria kernel: [  519.269442] usb 1-1.4: new full-speed USB device number 9 using dwc_otg
Jul 17 09:38:16 moria kernel: [  519.293262] usb 1-1.4: New USB device found, idVendor=10c4, idProduct=ea60
Jul 17 09:38:16 moria kernel: [  519.293329] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jul 17 09:38:16 moria kernel: [  519.293347] usb 1-1.4: Product: Compac BM1384 Bitcoin Miner
Jul 17 09:38:16 moria kernel: [  519.293364] usb 1-1.4: Manufacturer: bitshopperde
Jul 17 09:38:16 moria kernel: [  519.293379] usb 1-1.4: SerialNumber: GS-10000262
Jul 17 09:38:16 moria kernel: [  519.306631] cp210x 1-1.4:1.0: cp210x converter detected
Jul 17 09:38:16 moria kernel: [  519.307898] usb 1-1.4: cp210x converter now attached to ttyUSB0

Which is great but it's followed by:

Jul 17 09:38:20 moria kernel: [  523.045954] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
Jul 17 09:38:20 moria kernel: [  523.046271] cp210x 1-1.4:1.0: device disconnected

I have tried various boot command options to no avail:
slub_debug=FP
dwc_otg.speed=1
usbcore.old_scheme_first=Y

I've also updated the firmware of the PI, updated all of the software packages and updated minera to v0.7.0

Anyone else have the same setup and had this problem?

Regards Gareth

What version of the Pi are you using and are the sticks at stock settings?