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Old Sep 27, 2011, 03:33 PM   #1
last2findout
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i think my fan has stopped working...

my macbook shuts down about once a day kernel panic but i think my fan only working on start up after about 5 mins i can't hear or feel it what is wrong or is it new fan or is kernel panic nothing todo with over heat maybe????
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Old Sep 27, 2011, 03:34 PM   #2
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iStat Pro will give you accurate readings of your temps and fan speed, among other things.
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Old Sep 27, 2011, 03:34 PM   #3
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If its not working properly try reseting the SMC to see if that fixes the problem,
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Old Sep 27, 2011, 03:41 PM   #4
last2findout
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says fan is running at 3775rpm and cpu temp:78,but i can't really feel any air pushing out of vents just dead hot only really started happening after upgrading memory ??
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Old Sep 27, 2011, 03:43 PM   #5
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Quote:
Originally Posted by last2findout View Post
says fan is running at 3775rpm and cpu temp:78,but i can't really feel any air pushing out of vents just dead hot only really started happening after upgrading memory ??
those fans are running fast, surprised you dont hear anything a 3775rpms
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Old Sep 27, 2011, 03:44 PM   #6
GGJstudios
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Originally Posted by last2findout View Post
says fan is running at 3775rpm and cpu temp:78,but i can't really feel any air pushing out of vents just dead hot only really started happening after upgrading memory ??
Your temp and fan speed would suggest they're working properly. You won't necessarily feel airflow from the vents, even with the fans at full speed.
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Old Sep 27, 2011, 03:45 PM   #7
last2findout
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you can normally feel something but i can't feel anything it does work when i first start up but them goes quite?? through the day, I have a cam shell on and that is roasting even hotter with it off
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Old Sep 27, 2011, 03:46 PM   #8
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I don't usually notice my fans running until they hit over 4000 RPM. Then again, I tend not to use my MBP in a quiet room. I can't recall ever feeling air from the fans, though.

If the problems started happening after upgrading the RAM, that would be the first thing to check. Maybe you got a bad RAM card.
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Last edited by sweetbrat; Sep 27, 2011 at 03:47 PM. Reason: Corrected spelling
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Old Sep 27, 2011, 03:49 PM   #9
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it was ok for a while then just started shutting down i might be looking into the heat thing touch much but its always really hot when it shuts down, might take it out and put old memory in see what happens
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Old Sep 27, 2011, 08:49 PM   #10
sweetbrat
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You might want to try testing your RAM, just to see. It really sounds like your fans are working properly.

http://guides.macrumors.com/Testing_RAM
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Old Sep 27, 2011, 08:52 PM   #11
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it was ok for a while then just started shutting down i might be looking into the heat thing touch much but its always really hot when it shuts down, might take it out and put old memory in see what happens
Blow it all out with some compressed air ... might clear out paths if there is too much dirt etc in there.
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Old Sep 27, 2011, 09:02 PM   #12
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Originally Posted by GGJstudios View Post
iStat Pro will give you accurate readings of your temps and fan speed, among other things.
I believe iStat uses voltage going to the fan to extrapolate it's speed. When my left fan was going out and occasionally completely stopped, iStat would still report it as running at the same speed the right one did.

Your mileage may vary.
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