Juiced Systems USB hub totally unreliable with USB Erupters

[mbartoncsu]

I purchased 6 USB erupters recently and went with the Juiced Systems USB 3.0 / 2.0 - 13 port USB HUB:


http://www.amazon.com/Juiced-Systems-USB-3-0-2-0/dp/B00B1WMYGO/ref=sr_1_1?s=electronics&ie=UTF8&qid=1376614790&sr=1-1&keywords=Juiced+Systems+USB+3.0+%2F+2.0+-+13+port+USB+HUB+5v+Power+Adapter

 A 3A adapter is included and I only planned on running 6 erupters in the short term, so I figured this would be a hub well matched for my setup. When I first had it connected and running there were no problems or hardware errors. The setup ran steady at 2 GH/s for a day or so before one of the devices starting giving continuous ICA invalid nonce errors. I restarted cgminer and was immediately flooded with errors for the same device. I moved the USBs around, rebooted, etc etc and can't get the hub to work with 6 erupters at this point.

So I started running 5 erupters... after about a day the same damn thing happens except cgminer is complaining about 2 of the 5 erupters. I restart cgminer with just 3 erupters connected, and I get these errors:

[2013-08-15 20:45:54] Icarus Detect: Test failed at /dev/ttyUSB0: get ffffffff,
 should: 000187a2

[2013-08-15 20:46:46] Icarus Detect: Test failed at /dev/ttyUSB1: get 00000000,
 should: 000187a2

Sometimes the host is seeing 0000000 for 2 of the erupters, sometimes FFFFFFFF, sometimes 1 and 1 as shown above. Sometimes it will start without error codes, but give the continuous invalid nonce errors after a few seconds of operation. At this point I can only reliably run 1 USB erupter in my fresh Ubuntu host with cgminer 3.1.1 (compiled with icarus support of course) and the latest version of bfgminer. All devices are linked in /dev. I have also tried my Windows 7 host with proper drivers and cgminer 3.1.1 with the SAME result. In the Windows host, all devices are assigned a COM address and any single erupter will work, but with 2+ connected through the Juice hub it will either give the 'get 00000000' error or loop into the invalid nonce sequence.

I guess I'll be off to Best Buy in the morning to find a random powered hub to try out.

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[notlist3d]

It seems many have had problems with juiced.  Read everything from running great almost full to cant handle half.  Best to stay away from the brand.  I would see if you can get a cheap hub and order one from the thread without a lot of complaints.

[dddbtc]

It seems many have had problems with juiced.  Read everything from running great almost full to cant handle half.  Best to stay away from the brand.  I would see if you can get a cheap hub and order one from the thread without a lot of complaints.

I bought a 10 port USB 3.0 hub from my local PC shop that was powered and off-brand from china, it ended up working flawlessly with Block Eruptor and FPGA's and even ended up being RaspberryPi compatable.

[notlist3d]

It seems many have had problems with juiced.  Read everything from running great almost full to cant handle half.  Best to stay away from the brand.  I would see if you can get a cheap hub and order one from the thread without a lot of complaints.

I bought a 10 port USB 3.0 hub from my local PC shop that was powered and off-brand from china, it ended up working flawlessly with Block Eruptor and FPGA's and even ended up being RaspberryPi compatable.

Perfect example YMMV.  Sorry to hear OP's unit was one that didn't work good.

[mbartoncsu]

I might see what Microcenter has before going to Best Buy. I originally wanted one of the Ankers but I was unable to find one that would arrive around the receipt of my erupters. I hoped the Juiced hub would at least get me 90% uptime until I decided to expand or invest in something else. The worst part is sitting on ASIC devices that I cannot put to work == losing BTC