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System Controller Fan Warnings

1238 Views 4 Replies Latest reply: Jun 6, 2006 8:30 PM by Justin Leavens RSS
Justin Leavens Calculating status...
Currently Being Moderated
Jun 5, 2006 3:47 PM
I've been getting email notifications when my XServe G5 dual 2.3ghz (10.3.9) is restarted warning about the fan speed on the system controller fan. The reported speeds have been in the 14000-14700rpm range. Usually a few seconds later I'll get another email telling me that the speed has dropped below 13000rpm, though every once in awhile it will race up and down for a couple of hours. But it will then usually sit in the 10k-12k range for days and weeks without problems or warning.

Is this something I should be concerned about? A symptom of anything worse that might be approaching? Thanks!

XServe G5 2 x 2.3ghz   Mac OS X (10.3.9)  

  • Bruce Cheng Level 2 Level 2 (270 points)
    Currently Being Moderated
    Jun 5, 2006 4:11 PM (in response to Justin Leavens)
    It depend on how warm your room is. You may want to check the temperature sensor (via server monitor) and see if the fan kicks in because of high temperature or increase cpu activity.

    If the Xserve gets too hot, it will shutdown. That has to be really really hot ...

  • Eric Taylor Calculating status...
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    Jun 6, 2006 3:54 PM (in response to Justin Leavens)
    This is a dirt-simple (literally!) tip, but it brought my XServe G5 fan speeds from an average of 10k to an average of 7.5k rpm.

    Crack the XServe open and blow it all out with compressed air. It really wasn't very dusty in there, so I'm not sure why the fans were running so hard--maybe there is dust collecting on the PSU sensor or something? In any case, like I said, I was averaging around 10k with more & more frequent 14k overspeed warnings (usually during reboots or Retrospect backup runs) and now I'm barely ever getting up over 8.5k rpms!

    Hope this helps...

    Various... B&W G3 thru XServe G5    


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