Quote from: thehypnominer on March 08, 2017, 02:05:02 PM

Quote from: thehypnominer on March 05, 2017, 03:17:07 PM

Quote from: vh on March 05, 2017, 05:38:51 AM

Quote from: thehypnominer on March 05, 2017, 05:29:26 AM

Quote from: vh on March 05, 2017, 02:52:19 AM

Quote from: thehypnominer on March 05, 2017, 01:49:01 AM

Hello everyone, newbie here.

I was wondering if anyone else was having issues with cgminer looping the "GSD X failure, disabling!" indefinitely when you try to run more than one 2Pac. I have been able to get up to 2 running simultaneously by plugging them in sequentially while cgminer is running, but any more than that and it ZOMBIEs the last one I plugged in and gives me the "failure" message over and over as it tries to find successive sticks.

Anyone seen this and/or figured out a cure? I would like to get more than one stick running at time!

Just for reference:
- I followed the instructions in this post to compile my own build (Windows) so it's current (and works just fine with the single stick)
- My USB hub is externally powered and I have tried multiple hubs and configurations - I don't think it's a power issue
- I've tried running each stick individually, so it's not a bad stick

Any help would be appreciated!

What is the hub you are using?

I've tried on an Anker 10-port 60W 3.0 hub (https://www.amazon.com/gp/product/B00VDVCQ84/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1) and on an Anker 7-port 2.0 hub (https://www.amazon.com/gp/product/B00R5ZA20G/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1).

But I've also tried just plugging two into my computer directly and I have the same issue.

Check out this note by NotFuzzyWarm on the hub thread:
https://bitcointalk.org/index.php?topic=1779423.msg17921042#msg17921042

Perhaps the hub internal layout are similar?

Yeah, I took a look at that article just before I posted here. I'm not sure of the internal layout, but I have tried just about every combination of sticks/ports to see if that was the issue. I even tried running one stick from one hub and one stick from another and running one stick from the hub and one from my PC. I get the same thing every time. I do have another hub coming in today. I am going to try it and see if maybe it will work, but then I'm fresh out of ideas.

So, I got my new USB hub in and gave it a shot over the last few days (Anker 13 port 12V/5A). No dice. I'm fairly convinced it's not a power issue anymore as yesterday I ran cgminer with only two sticks in my USB hub, after setting both of them to the lowest power setting I could without them giving me hardware errors and running them at only freq 100. Even so, I can only get them to run for about 2-3 hours, after which one of the sticks goes ZOMBIE, which then cascades to all the sticks except one (when using more than 2). This is what it looks like in cgminer:

http://i.imgur.com/SkpNks8.jpg

You can see from the image that cgminer keeps trying to reinitialize the stick, but just fails over and over and over. In this case 5,222 times (I was gone all afternoon). Any ideas?

I have been going over this conversation that was started by thehypnominer. I have a situation that precisely mirrors this person's issue, but after going through this thread I don't see that his issue was resolved. I have an ongoing problem that my miners go into a ZOMBIE mode, and sometimes an OFF mode. But most of the time it is ZOMBIE.

It happens anywhere from 1 hour to 12 hours after I plug them in. I have tried different computers and different USB hubs. I have not increased the voltage and don't even know how at this time. They are running at 100 MHz. And I have even decreased the freq parameter down to 100 in cgminer. Whether I plug in both USB miners at the same time, or separately, this happens.

The only thing that I can think of is that there must be some recommended USB hubs that I should be using. I have read that some USB hubs don't give the amount of power that they seem to tout on their packaging. If that is the case, can you please suggest a particular USB hub that I should purchase? If this is not the solution, could you please let me know what to do? Like thehypnominer, I had been planning to buy 10 or more of these things, but the first 2 that I purchased seem to give me a never ending road block. Sad