I have 3 graphics cards running poclbm each with a rate of about 140 MH/s. This has been running since I posted an earlier question ( "No more backup pools left. Using primary and starting over." ) in August I have not found/created a block in that time.

However every so many hours or every few days (irregularly, but never 5 days uninterrupted), I get the message, "No more backup pools left. Using primary and starting over."

Is this message effecting my ability to mine, or am I just impatient?

1 Answer 1


This indicates that your miner couldn't get work from the pool fast enough and so some mining power was wasted. If this only happens occasionally, I wouldn't worry about it. If it happens often enough that it's impacting your mining rate, you may wish to configure a backup pool. If it's happening because your Internet connection is slow or unreliable, there's probably nothing you can do about it.

  • I am trying to mine solo. What would a backup pool mean in this context?
    – user1745
    Commented Feb 13, 2013 at 20:26
  • It would mean your Bitcoin client wasn't responding fast enough. Commented Feb 13, 2013 at 21:24

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