Topic: GekkoScience has a new stickminer that does 300+GH - page 31. (Read 22553 times)

Hello there, dont know if this is the right place, but since I've managed to get a futurebit apollo, I think I'm going to sell my compac F (and also I can get rid of usb hub etc, just the pod miner with my rasp )

For long term of course the LTS is better as it's more stable and gets more security updates.

Note that Ubuntu 22.04 LTS is about to be released in a day or so.

Good, thank you very much.

My experience was always to use the x.04 LTS version.  The x.10 always seem to have problems.

Hi guys, can you tell me if I can use cgminer with ubuntu 21.10 version on raspberry PI 4B or should I use 20.04 LTS version?

Which do you recommend for better performance and compatibility with cgminer? If something changes, of course.

Thanks for your answer, but if i use 1 Hub, i can fill it with 7 sticks without problems. (i use the "original 7+1 port hub) and have an 1200W Power supply it can also run my T9+.
So it does not matter where i put the sticks just the number of devices matter. Before i used an older Raspberry and only 8 sticks where running, number 9 get me trouble.
Now with the 3B+ 11 sticks are running fine and number 12 will bring trouble.

To really exclude the possibility of this being a power issue, I recommend hooking up one of the hubs to a different computer.

Hi,

i also got 2 of the sticks. And still have a lot of NewPacs. I am using an Raspi 3b+ Now my Problem.:
I can add 11 sticks to my hubs and everything works fine.
At the moment i put the 12th stick in, i get an error: failed to initialize....
Doesn't matter which frequency or which sticks i put in. So there is no Problem with the Power.
I guess it have something to do with the USB Bandwidth, Maybe anyone knows how i can fix the Problem and add more sticks?

I would be very happy if somene can help.

Peace

No, there's a save configuration option in the CGMiner UI.  Selecting that option is what would create the configuration file.  If you didn't find it then you may not have done that.

Uninstalling/reinstalling wouldn't help, I don't think.  Sounds like you have some other issue.

I don't see any .conf files. I could try to uninstall and reinstall but I am not sure which step the .conf file would have been created.


Would it have been in the ./configure --enable-gekko step you think?

Well, it sounds like you may have saved the configuration to a .conf file.  If so you can find it and delete it and then just run with the command line.

I prefer the command line rather than the .conf file.

Hey everyone. I am new here (and to the hobby mining scene). After lots of research and pouring through this forum I have gotten myself mining (currently pointed solo via CK Pool). I have gotten stuck on changing the mhz on my miners.

I am running the latest raspbian with CG Miner 4.12 mining with the Gekko CompacF and Newpacs. I am using the bitcoin merch 10 port usb hubs and plan to begin testing out actual power output soon. I may be making a dumb mistake in the cmd line so excuse me if I am.   

When I change the freq in the code the program still runs properly without error but the miners continue target the standard rates of 200 MHz and 150 MHz or the two miners. At the moment I would ike to be able to overclock for testing purposes to determine power consumption needs, as well as if my cooling fans are enough to manage the heat.

Thanks in advance. BTW I know these usb miners may not be anything fancy/profitable in the mining world but they are certainly really fun and produce some impressive hash rates for a USB. This has also turned into a little side project for me to learn CMD line basics.

The Pi won't be the issue here; in fact, it's much better than using a Windows host.
However you must ensure that a) you get enough power out of the ports and b) the power is dissipated.
The former can be solved by a good hub and PSU (which you have) and the latter by good cooling.

However, you can also aid both of those at the same time by lowering the power consumption by veeeeeeeeery slightly reducing the core voltage using the screw in the bottom right corner. Since the sticks are tuned to run at 400MHz, they may not be exactly 100% perfectly set up for the absolute maximum overclock and there might be some performance to be squeezed out using this technique.

yeah thanks for this, I've already tried this - im thinking it may be my raspberrypi 3 but i am going to try to add more cooling

Did you use kano's suggestions? Try with a lower gekko-start-freq to start with and see when it starts to fail.

Ideally connect a USB power meter to see if the power is actually being delivered correctly from the hub.

Also, are you using a good fan?, it could be overheating and failing because of that.

In any case, it's working as expected though, since they're only ensuring 400MHz:


In that post are other things you can try as well:

so i can't seem to get the sticks over 450 mhz

I have a gekkoscience usb hub, with 2 ports splitting 6 amps connected with a 200watt FutureBit power supply

I've put 3 into the hub and connected it to an old RaspberryPi3 got CGminer running no problem but no matter what i do i can't get them over 450mhz - according to the chart on page 3 i can go much higher than this

Now i am doing an experiment with two S9, a fishbowl and some 3M Novec 649 liquid, this is an awsome (and expensive) test and i am excited...  

Now i am building an inox case, 14cm x 30cm x 28cm (last one is the heigth) to put the miner on bottom, the power supply just above and try and see... I will try to upload a vid and some pics if you wanna...

I am pretty sure if you put the USB hub and miners into NOVEC 649 you will erase the heat issue... it is about 150€, aprox. for about 6/8 USB miners, probably


EDIT: I forgot, the miner goes WITHOUT fans, so no noise!  

The miner will be this: http://rig.rent/rigs/237269
It is offline until i get the case... (and it will not be able to be rented, i use mrr because it is an easy way to update pool info into the miners).

What are some of the best ways to ensure these miners are running stable, getting proper airflow, and are not getting too hot over time?

One thing I've checked is that the required power at the given frequency remains stable. This will depend on how much the USB hub can provide, for example 400MHz would require about 2A, and 500MHz would require about 2.4A (which is the maximum for many USB hubs). You can of course go higher if the USB hub can deliver that much power per slot. If there's no tripping on the hub, and the software remains stable, this should be fine. You can measure this with one of those cheap USB power meter testers you can get online.

Now, in terms of heat, I'm not really sure how you could ensure the device is not running too hot. Of course you should run a fan pointed into the aluminium heat sink, but I'm not sure if the angle/distance plays a huge role. Also, at some point the fan might not be enough. Not sure how to establish that.

I've been thinking about maybe getting one of those thermal cameras to monitor the temperature. What would be a reasonable range of temperature for normal operation with this device? Also, are there any components that are more critical regarding thermal conditions? Should it be cooled from the back and front as well?, or it doesn't matter too much?

So far everything seems to be running smooth, but I'm not sure if I'm just slow cooking the miner

Thanks for the info!