i think my fan has stopped working...

[last2findout]

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????

 

[GGJstudios]

iStat Pro will give you accurate readings of your temps and fan speed, among other things.

 

[maflynn]

If its not working properly try reseting the SMC to see if that fixes the problem,

 

[last2findout]

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 ??

 

[heisenberg123]

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

 

[GGJstudios]

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.

 

[last2findout]

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

 

[sweetbrat]

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.

 

[last2findout]

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

 

[sweetbrat]

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

 

[johnhurley]

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.

 

[snaky69]

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.