I just recently upgraded from Bitcoin client 0.3.? to 0.6.1-beta for Mac.

In the old version I had the option of generating coins; I don't see that option here. Activity Monitor shows Bitcoin-Qt consistently using >95% CPU. As I understand it, CPU mining is essentially useless, so I'd like to turn it off, but still have the option to receive coins if I'm paid by someone.

Is this possible?

  • 5
    There was a very recent bug report about high CPU usage in 0.6.1 on OSX. If you're hit by the same problem, it's not coin generation that causes it, but a thread synchronisation bug. May 9, 2012 at 2:32
  • Interesting; I will look into that when I get home. May 9, 2012 at 6:44
  • 2 was released, which fixes the 100% issue. May 11, 2012 at 23:48

2 Answers 2


As far as I know the option is off by default in the new versions. To make sure you can add a line


to your bitcoin.conf file.


The SourceForge link currently on bitcoin.org points to the 0.6.2 version. Surgically insert ".2" to get a link to the fixed version:


Do not use this link if a newer release is available!

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