Fan speeds up on cgminer exit

edited February 2014 in Hardware support

I'm not sure if this is a hardware or software issue but in any case.  Whenever I exit cgminer my gpu fans go into overdrive, running about 85% or higher.  They won't stop until I shutdown the computer entirely.  This happens whether cgminer shuts down randomly or if I initiate a shutdown by hitting Q.  I'm running two Gigabyte R9 290s and it happens with both.

My setup is:

Xubuntu 13.10
AMD Catalyst 13.11 beta
CGminer 2.11.4

Running it from a batch file: ./cgminer --scrypt -o -u user -p pass -I 20 --thread-concurrency 32765 --gpu-powertune 20 --gpu-engine 925 --gpu-fan 55 --temp-cutoff 99

Maybe it has to do with running an older version of cgminer?  I want to upgrade but it's otherwise been running smoothly so I hate to mess with it.


  • cgminer 3.7.2 is the latest version that supports GPUs, and it still does this.

    By the way, your temp cutoff is way too high (in my opinion).

    I would recommend --temp-target 80  --temp-overheat 85  --temp-cuttoff 90,
    and then set --auto-fan and --gpu-fan 0-85

    This will minimize the wear and tear on your fans by letting the card go up to 80C, and will push to 100% fan only when it reaches 85C, and cutoff the card if it reaches 90C.
  • I'm going to try that.  Thanks!

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