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Author Topic: Antminer U3 Stops Hashing  (Read 2005 times)
witch
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June 05, 2015, 07:11:17 PM
 #1

Hello! My Antminer U3 Will Stop Hashing on its own and I need to unhook and replug in the USB cable and it starts Hashing Again. I am running this on a Windows 7 "64" machine with Cgminer 4.9.0!~ TY!

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June 07, 2015, 06:41:11 AM
 #2

 Huh

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June 07, 2015, 05:00:17 PM
 #3

Lot's of things it could be....

Could be your usb cable
Could be your machines power settings
Could be a network error
Could be a USB hub



Over all the poeple not liking their U3 are very vocal that it is a crap machine. The people not having an issue don't tend to jump on a web forum and post.

Mine stops working 100% of the time when my wife disconnects the usb cable and takes the laptop to another part of the house. Or when the windows 10 table losses it's connection to the tablet dock that the usb devices are plugged into. Both of those are known in the computer world as an ID-10-T error. Or a short between the keyboard and chair.

I typically run it on either a Windows 8.1 laptop or Windows 10 tablet with a gridseed 5 chip puck also running in another window.

Try eliminating the easy things first.

- Remove Wife
- Replace USB cable

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June 07, 2015, 11:47:40 PM
 #4

The power brick sux.
... and the U3 has no temperature information so you can't tell if it's overheating.

I used an IR gun on mine while we were messing around with tying to get them working.
The U3 was showing 40C on the heat sink ... and the plug pack was showing 50C
So I got rid of the plug pack and used an expensive high quality PSU while testing it.

I've not run them since then coz they use WAY too much power for the hash rate - even with the very good PSU I was using - Seasonic Platinum 1200W

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June 08, 2015, 03:05:46 AM
 #5

The PSU I am using the one it came with. I was going to hook it up to a 30 Amp PSU but That is the other problem I am having. Was Told to Post that in a Different Cat. That is a scryt Fury Problem, on the same computer. Think its fubar. The fury uses that driver that gets replaced. The fury tries to run as a U3. So have it hooked up to my desktop on stock PSU

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RaginglikeaBoss
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June 22, 2015, 05:46:26 AM
 #6

This is a commonly occurring issue using CGMiner 4.9.0 and the Antminer U3.  Sadly I could only get my Antminer U3's to run well by using CGMiner 4.9.0.  So it's either a very persistent problem with the Antminer U3's in general or it's a software issue.

You can check out the main Antminer U3 support thread to read about how most people's units cut out every 24 hours like clockwork.  Not that it helps, but maybe someone will eventually figure out a fix.  I know I couldn't...

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June 22, 2015, 06:07:06 AM
 #7

This is a commonly occurring issue using CGMiner 4.9.0 and the Antminer U3.  Sadly I could only get my Antminer U3's to run well by using CGMiner 4.9.0.  So it's either a very persistent problem with the Antminer U3's in general or it's a software issue.

You can check out the main Antminer U3 support thread to read about how most people's units cut out every 24 hours like clockwork.  Not that it helps, but maybe someone will eventually figure out a fix.  I know I couldn't...
I cut the cord and put it on a 30 amp psu, hashing fine now, been a few days so fare. I have been using CGminer 4.9.0 from the start.

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June 22, 2015, 06:53:41 AM
 #8

Try the latest cgminer 4.9.2 there's a few changes in there for U3.
It won't help the crappy PSU problems, but it's worth seeing if it helps anyway Smiley

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