Topic: GekkoScience has a new stickminer that does 300+GH - page 37. (Read 22553 times)

I do not use a keyboard, display or anything on my PI, so all that is connected currently is 3 USB connectors and a CAT5e cable.  I just run a basic installation of Rasbian and have it setup to run headless when I create the SD Card.  I do everything else in PuTTY via SSH.  The hardest part for anyone who is new would be compiling cgminer but there are plenty of tutorials on this forum (and I think even in this post) to get anyone through (including myself).

Each adjuster has it's own position for the most part as originally I tried finding one spot and set everyone of them the same.  Because each ASIC is a tiny bit different due to silicone lottery there isn't a complete one size fits all solution if you are going to push it past the 400MHz that the sticks are originally made for.  You also need to have a USB power draw thing (I don't remember the technical name but it plugs into the USB port and the stick plugs into that) for testing and adjusting voltage because you can end up with way to much power even at 500MHz if you have too much amp wise if you adjust too much on it.  After I finish each stick I just move the next stick onto it.  So you only need 1 of them and they are less than $20 on Amazon.

I think you are going to continue to have problems on a Windows based machine.  Each stick upon receiving them I did run myself on my personal desktop (at the time a AMD 3950x on a Gigabyte Aorus MB, but I used a USB hub that could provide 2.5A so even at 500MHz it would get angry at points).  The PI is a cheap very easy to setup solution and you can just set the sticks up with some kind of cooling solution and forget about them really.  I monitor everything through the default miner.php included in cgminer.

Rasp Pi4 has only 4 usb ports, how do you manage to plug them all in including keyboard & mouse

and i assume you're not running windows, as i tested out 500MHz on windows, the WU sits at 4,4xx/m while yours runs @ 4,6xx/m.
  is it on Linux ?

     I will search for the post, thanks.
Also i noticed the V - adjuster has 2 flat ends, while adjusting each of them, did they all end up in the same position ?
If so, what is the position ?

I don't want to quote because the post he made was very long.  It's been awhile and I got help from the guys on here and the ones in the Kano Discord, but adjusting the vCore voltages for whatever reason made everything happy.  I currently have 9 Compac F's running at 500MHz (I am waiting on another batch of Gekko hubs so I have one on a hub that can't do more than 2.0A (if it blips above for more than a second it shuts the port down and resets the stick), but I have all 3 hubs connected via their own USB cable to a single Raspberry PI 4 (8gb version). 

The vcore voltage adjuster is the little VERY small phillips head looking screw on the bottom right of the PCB if you are looking at the heatsink side.  There is a post somewhere in here talking about adjusting them and how much to.  I went through and did every one of them one at a time.  End result though was all 8 (now 9) working together with no issue

Little USB ampmeters that you plug between the stick and the hub's USB port.

Yeah; after all, it makes a large difference if you have an old Xeon with e.g. 32 cores each running at 1GHz (ballpark numbers) and say you've got a 32GHz CPU opposed to a modern i5 with 8 cores each running 4GHz. That's because even today, lots of applications are purely single-threaded. So if they demand a bit more performance, having tons of cores won't help.
But that's OT - your CPU is perfectly fine! Just nitpicking..

thanks. I used the List all devices command and got this back:

USB list: Failed to open 9
0 total known USB device

how do you point instances to a different Bus? is there a line in the config file for that ?


what do you use to get the power consumption reading per port ?


Is it ?? well, if you prefer 6x 4.12 GHz

For reference, mine pull 2.7A per port on GekkoScience hub.

Sorry, but this I've never seen! You add the frequencies of your CPU cores? That's funny.

There should be a cgminer command to list all devices, and I believe it tells you the bus/port numbers. On my testers the busses enumerate as 0/1 or 0/7 depending on machine, so I run two separate instances of cgminer, one pointed at bus 0, one at bus 1/7, for easier note-taking about which devices are on which hubs during burn-in. We run up to 7 sticks at 400MHz per bus (note the bus usage is equivalent to 5 sticks at 550MHz); any more and we had stability issues like you're seeing. We test on debian linux, which I guarantee will make a more efficient use of the bus than your Windows.

This is more like what i am experiencing and where my questions originate from.
In summary, he has 8 sticks split across 2 hubs which is 2x 4 sticks per hub. then he has trouble connecting the 2 hubs with 4 sticks each on them to a single Pi4 as the problem starts the moment he plugs in the 2nd hub to the Pi4 which is exactly same thing im experiencing.

But then again, running one hub per Pi4 or PC works perfectly.  So he ended up getting a 2nd Pi4 to get the 2nd hub running on its own without issues.
Is that the only solution ?? or are there some other things to try ? It doesn't seem to be a hub power issue but more about connecting multiple hubs to a PC or Pi. My PC isnt resource constrained yet.


My PC Specification:

Windows 11
Processor   AMD FX(tm)-6100 Six-Core Processor -  4.12 GHz  (24.7GHz total)
Installed RAM   12.0 GB
System type   64-bit operating system, x64-based processor
USB ports:        8 behind, 4 Infront  (12 in total )

Suggestions ...


Yes, it feels more like a bandwidth battle i agree.
I looked at the device manager side & found 4x OHCI USB 2.0 controllers + 1 xHCI USB 3.0 controller.
Tried swapping them around to be on separate controllers but i cant tell when they're on different controllers as im not getting the normal feedback.

any tips on identifying which controller manages which port ?


Yes, each hub goes into a different port on the PC. I'm not sure i know how to instruct Zadig to use 2nd USB connection, all i made sure was to install the zadig driver for the sticks.

how can i go about about doing that with zadig ?


The hubs supplies ok power..  there enough PC resource to go round ..

Yeah the 10 port 120W hub is better than the 7port one I thought you had, but its still only 2.1A per port. I've had no end of trouble testing different hubs and only the Gekkoscience ones work reliably in my experience.

The only other trouble I have had was when I didn't have enough cpu grunt to drive three sticks. I was using a lowly Pi1 and it just couldn't drive more than one stick at full speed.

Oh and I managed to melt the solder off one of the chips on one stick but that wasn't terminal 

Damn straight it will. If you look back in this thread you find the results of me changing from W10 to a Raspi 3B -- immediate 10% increase in hash rate while running the same freq plus was able to run at a higher freq.

I don't know if the issue is how Windoze allocates resources to USB or if is related to the Zadig USB driver but it made a world of difference.

edit: A thought... I assume the 2nd hub is plugged into its own port on the PC right? (it should be)
If so, did you tell Zadig to use the 2nd USB connection? If you didn't, `Doze will not like it...

Would a Raspberry PI solve this data transfer problem ?

Its a 120W hub with 10 ports, im only populating 3 ports for F + cooling fan. they are pretty steady at 550Mhz when a single hub is plugged to PC but as soon as i plug in a second hub to PC, the frequencies begin to flutter & the Fs on the 2nd hub wouldnt go past 300Mhz while affecting the Fs on the first Hub causing it to drop also ...

See below:  
0: GSF 10050552: BM1397:01+ 550.00MHz T:550 P:550 (23:12) |  100% WU:100% | 355.2G / 356.1Gh/s WU:4974.9/m
1: GSF 10050555: BM1397:01+ 550.00MHz T:550 P:550 (24:12) |  100% WU:100% | 346.5G / 356.0Gh/s WU:4973.4/m
2: GSF 10050558: BM1397:01+ 550.00MHz T:550 P:550 (23:12) |  100% WU:100% | 328.3G / 353.9Gh/s WU:4943.6/m

No, 1A will never work with these. I tried with a 2.4A hub and it didn't even get above like half frequency; however these sticks are made for OC and run especially bad at lower frequency, so hashrate was abysmal. Changing to a GekkoScience hub immediately fixed it.

I don't think that these sticks can even get 2.4A out of 2.4A hubs, because they only deliver the power when the device requests it through some USB spec messages that it sends to the hub - something that mining sticks don't do.

1A per USB port may not be enough to run them at 500

The Sidehack USB hub provides up to 6A per port (shared between two ports)

I'm using the Sipolar Hubs..

Not sure if I missed you saying it, but what hubs are you using?

I'm still not getting any luck with this ..  Tried the VMs , no luck ..

I'm curious to know how everyone else who has upto 2 or more hubs connect and maintain a set frequency..

Do i need to tweak something ? 

Will fire up my VM and test . thanks

I still have other Miner hubs to setup, so is connecting them all to a single 7-port USB hub attached to a PC gonna work ?

I recommend anyone who just doesn't have anything other than a single Windows machine, to run a VM and pass the sticks through. Tried it once and worked pretty well. Now mine run on their own Pi.