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Bitcoin Forum > Bitcoin > Mining > Mining support > My s9 does not detect a fan
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Mnuren (OP)
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January 28, 2018, 04:29:31 AM
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Hello all,
Just got an s9, boots well but does not hash (all 3 hash boards read 0's on the status page). I notice only one fan seems to be detected. Although both are spinning, there is only 1fan slot reading rpm. All other fan slots are at 0. Is there a way to determine if it is a problem with the fan or control board?
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January 28, 2018, 07:07:30 AM
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And please share with us the content of "Kernel Log" page.
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Mnuren (OP)
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January 28, 2018, 01:46:59 PM
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Thanks for the advice, I switched fan connections and one fan shows in a different slot.  Can an s7 fan be used inin an s9 or do I need a new one?  I assume they are not compatible but thought I would ask.
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January 29, 2018, 06:41:08 PM
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The s7 and s9 use a similar 6000 rpm fan, I have used many s7 fans on s9s with no issue.
Stop buying industrial miners, running them at home, and then complaining about the noise.
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January 30, 2018, 03:55:53 PM
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Check what firmware version your running, old firmware use to exhibit this issue, my December batch did the same

Also share your kernel log, helps to see issues.
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