I seem to be having an issue with my r606 and not really sure what it is.

I had it set up and running on Windows fine for a couple of days. I started to test some of my Newpac sticks so had to unplug the r606 and have been having issues ever since disconnecting it. At first I thought it was Windows being wonky but I actually configured CGminer on my Raspberry Pi4 and the issue persisted. The next step was to check the USB cable. I didn't use brand new ones but I did use two that I had at home and both didn't work.

The last thing I suppose it could be is the PSU but I am using the PSU for a USB mining rig and it works with no issues.

The problem I am running into is that the USB port seems to be dead, dying or not transmitting data.

The error I am getting on my Raspberry Pi 4 is:

gekkoscience detect failed to initialise 1:44

It also says something like "waiting for USB hot plug"

On windows it keeps trying to reset it and I get some notice that says: GSI 0 failure, disabling

I also tried a different PSU and lower voltage and just get a "zero chips found" notice.

I don't think a PSU or a new cable will fix the issue but I am getting a new PSU with a 6 pin connector and should be able to test that soon. I bought the unit off of eBay and messaged the seller requesting the original order date & seller of the hardware. number starts with 100 so it might be an early batch. I don't mind sending it in for repair or inspection if that needs to be done, it would just be dope to get this thing up and running. Any help would be appreciated thanks!

Mine is the one with the notch

I have 6 on 1000w psu inside my computer case on gekkohub. I can run at 550 MHz on all the sticks until I get xmrig mining monero on 30 of my 32 threads cpu. Then my hashrate cuts in half. I didn’t think these required much processing power to run. It’s unlikely the psu, does same on power brick. Windows 10 pro x570 motherboard running Ryzen 5950x 64gb ram 500gb ssd for the os

I would try Zadig again and do a clean restart of your PC. Shut it down leave it a minute then restart it and see what happens. Also unplug the stick, let it cool, then plug it back in.

You should be able to run multiple instances of cgminer and specify a serial number for a stick.

You dont need to adjust the voltage pot. I was running mine without touching it and getting 140ghs on all 6 sticks on gekkos usb hub.

Have you tried soldering on a new connector?

There isn't a specific part number. I assume its just a standard mini usb jack like these:-

Sourcingmap® 10 x Mini USB 5 Pin Socket Female Solder Adaptor Connector https://www.amazon.co.uk/dp/B00GONWWRQ/ref=cm_sw_r_cp_api_glt_fabc_5D2CTCMFRCEB3YFPHEB0

No, these can only mine SHA-256 coins like Bitcoin. You can use any pool you like, as long as they'll accept the low hashrates of these devices. When you connect to a pool, they'll have instructions on how to redeem any balance you might have.

Google is your friend. You’ve been told the answer already.

Hi there,

I decided to put 2 R606 as lottery miners on a local full node. The node (bitcoin-core 0.21.1) run on a A4-5000 from AMD with a 1To SSD/8G RAM on an alpine linux with just the node and cgminer on it. Everything seems fine on the node I get 60 to 70 peers connected and the machine run alsmost IDLE (8% on 1 cpu <1% of the 3 other CPUs).


For CGminer, I've compiled latest version from for Gekko r606 (4.1.11).

I can run around 630GH/s*2 when I run cgminer solo to the http 127.0.0.1:8332 and I notice the message from cgminer "connected without LP to ..."  (which I guess is without longPoll?), I can try different frequency etc ... I'm stuck at 630GH/s, and I get reagular "peak adjust: target frequency 525.00MHz -> 518.75MHz" message down to 435 and 600GH/s.

Now if I run the same cgminer to the stratum solo.ckpool.org solo pool server then I can get up to 900+GH/s and even close to 1TH/s by raising he frequency.

Any ideas ? Is the longpoll the issue ? is the cgminer in http the issue ? Or bitcoin-core ? Any though are welcome.

Thanks.