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MacBook 'Moo' Fix?
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did the reset. no change. osx update no change.
my white 2ghz macbook has started and stopped its fans in quick succession between 64 and 65 degrees since i got it. im sure thats what they are set to do. the reason some can't hear it in person or in the video clip imho is because you are not as sensitive to the sound as some other people. its about as loud as a whisper. in a quiet room a whisper is perfectly audible.
a small motor revving up and down could be decribed as a "moo" sound.
apple needs to send out a fix so the fans go on low but steady at an appropriate temp. like mine do now at 70 degrees.
i think apple thought setting it this way would pre empt constant fan noise at light loads like surfing the net and they would be hailed as having an even quieter notebook computer. they were wrong.
it is a great computer though.
my white 2ghz macbook has started and stopped its fans in quick succession between 64 and 65 degrees since i got it. im sure thats what they are set to do. the reason some can't hear it in person or in the video clip imho is because you are not as sensitive to the sound as some other people. its about as loud as a whisper. in a quiet room a whisper is perfectly audible.
a small motor revving up and down could be decribed as a "moo" sound.
apple needs to send out a fix so the fans go on low but steady at an appropriate temp. like mine do now at 70 degrees.
i think apple thought setting it this way would pre empt constant fan noise at light loads like surfing the net and they would be hailed as having an even quieter notebook computer. they were wrong.
it is a great computer though.
Well, at least it is helping some of us. 5 yes to 7 no so far.
I am curious. What is the danger of resetting the PMU? AppleCare certainly didn't ask me if I was backed up or anything before instructing me to go through this procedure.
FWIW, my moo is still gone.
I am curious. What is the danger of resetting the PMU? AppleCare certainly didn't ask me if I was backed up or anything before instructing me to go through this procedure.
FWIW, my moo is still gone.
Paranoidmarvin said:
Turn your volume up REALLY load and near the end of the clip when all that's happening is you're watching the fan spin you'll hear it MOO. It's more of a moo/whoosh really and not that loud. Must still be annoying though......
;-E
I did the reset thing and now I have the moo (fan goes on for a second). But luckily, it's not as disturbing as the porcessor whining (you know, the one that goes away when you run photo booth). Or maybe I neever really noticed the moo before... I meant the hard drive spinning makes a more disturbing noise than thos mooing fans.
I'm hoping for a patch that makes the whining stop. I even hear in when in my bed. Running photo booth all the time is uncool, especially the iSight LED is disturbing. I wish I could us the standby LED for HDD activity and the iSight thing for CapsLock... Has anyone found a hack for this?
I did the reset thing and now I have the moo (fan goes on for a second). But luckily, it's not as disturbing as the porcessor whining (you know, the one that goes away when you run photo booth). Or maybe I neever really noticed the moo before... I meant the hard drive spinning makes a more disturbing noise than thos mooing fans.
I'm hoping for a patch that makes the whining stop. I even hear in when in my bed. Running photo booth all the time is uncool, especially the iSight LED is disturbing. I wish I could us the standby LED for HDD activity and the iSight thing for CapsLock... Has anyone found a hack for this?
So far, no mooing! I also happened to shut it down before I went to bed because I wasn't sure about resetting the PMU and so I wanted to sleep on it. When I woke up, I reset the PMU and everything's alright, albeit the fact that I have to resize windows and enter passwords (and totally reconfigure my Dashboard ).
Having a cooled-down MBP might also be helping; I had left the window open during the night and my Mac was pretty cool this morning.
).Having a cooled-down MBP might also be helping; I had left the window open during the night and my Mac was pretty cool this morning.
its not the motor making that sound
all it is is the design of the fan blades when they reach a sertian speed and since it goes on and off over and over it gives it the moo sound.
what will fix the mooing is a redesigned fan blade or to make the current not spin so fast, it seem's to be getting stuck in a cycle after it reaches a sertian temp
all they need to do is redesign the fan blades. the way it look's is they are a hybrid os a squirl cage fan and a normal fan looks as if they was trying to hit 2 birds with one stone a fan that will push air threw the intakes and into the heatsink and to push the air around the case.
what they need to do it have a secondary fan to push the air around the case and one dedicated to the cpu. that will allow them to not run the a single fan so hard to make that noise.
have you seen those fans insude a dreamcast. they are small and can push a good amount of air and not make much noise cause it dont need to run hard like it does in the dreamcast. i cant remember the sixe of that fan in the dreamcast. and the other fan for the cpu wouldent need to run so hard cause it would not need to since it would be dedicated to the cpu only.
another thing would be to have the pass threw air from the heatsink taken out of the case insted of letting heated air sirculate threw the case and heating up the rest of the insides
sorry for my constant running at the mouth but that is what i see they need to change about the Macbook
all it is is the design of the fan blades when they reach a sertian speed and since it goes on and off over and over it gives it the moo sound.
what will fix the mooing is a redesigned fan blade or to make the current not spin so fast, it seem's to be getting stuck in a cycle after it reaches a sertian temp
all they need to do is redesign the fan blades. the way it look's is they are a hybrid os a squirl cage fan and a normal fan looks as if they was trying to hit 2 birds with one stone a fan that will push air threw the intakes and into the heatsink and to push the air around the case.
what they need to do it have a secondary fan to push the air around the case and one dedicated to the cpu. that will allow them to not run the a single fan so hard to make that noise.
have you seen those fans insude a dreamcast. they are small and can push a good amount of air and not make much noise cause it dont need to run hard like it does in the dreamcast. i cant remember the sixe of that fan in the dreamcast. and the other fan for the cpu wouldent need to run so hard cause it would not need to since it would be dedicated to the cpu only.
another thing would be to have the pass threw air from the heatsink taken out of the case insted of letting heated air sirculate threw the case and heating up the rest of the insides
sorry for my constant running at the mouth but that is what i see they need to change about the Macbook
njmac said:
Now that one I could hear.. no wonder so many of you are frustrated.
Why won't apple address this or find a finite fix?
I disagree. The sound starts much before the fan is moving at a speed high enough for the blades to be the source. I think it's either the motor or the bearings, but probably to motor. This is compounded by the fan not staying on long enough to cool the CPU enough, and thus it reaches the turn-on temperature rather quickly.madmax_2069 said:
Ok, that one I could hear it. That is annoying. I've heard other fans make similar noises, but that's pretty unacceptable. Shouldn't be stopping and starting like that either. I'm sure Apple will be replacing the really bad ones if this doesn't fix it, but they'll probably be quiet about it like usual, which will actually hurt them more.njmac said:
The CPU seems kinda hot in the vid, but my iMac hovers around the mid 60's too. The hd around 50. I've been told that's normal, but it seems hot to me, and seems really hot in a laptop.
solvs said:
My first MB was even louder than that audio file. In fact, it was loud enough that I couldn't use it at the library without people constantly looking at me. When I bought it in to the apple store, the genius REFUSED to acknowledge it as a problem and would not let me exchange it (some people had better luck/nicer geniuses on here tho). Luckily my macbooks trackpad button was not very responsive so he allowed me to exchange it for that.
its not the fan blades 'cause its a quiet fan when running steadily. mine goes steady at around 70 degrees. its obviously the revving up then down caused by setting the on and off temp. too close (seems to be 64 degrees for me). seems like a simple fix if they bother to do it. please bother.
yea i just herd the mp3 and i herd it way better. yea it soundt like the motor is straining for some reason. like it has more forward momentum than reverse but there is enuff there to make the sound . ever herd a electric motor that was going one way then instantly going the other way . it seem's like that but its like a pulse type of deal the correct way is more then the wrong way but would be enuff of a force to make the motor strain.
but it does sound like its fighting somthing when its spinning. people with a dreamcast should know this sound wile the game disk is in the drive and the unit powered up open the drive thats what im trying to describe but its not as bad in the Macbook cause its a smaller motor that is running the fan. what is it that's in 10.4.7 that controls the fan was is there a firmware update when you update to 10.4.7. somthing could have made the settings for the fan go haywire. shouldent it kick in once it reaches a sertian temp and stay on till it reaches a lower temp that what supost to be the engage temp. mabe somthing set the enguage and shutoff the same temp hell im just guessing here but it should be somthing apple could fix with a firmware update or a OS X patch
but it does sound like its fighting somthing when its spinning. people with a dreamcast should know this sound wile the game disk is in the drive and the unit powered up open the drive thats what im trying to describe but its not as bad in the Macbook cause its a smaller motor that is running the fan. what is it that's in 10.4.7 that controls the fan was is there a firmware update when you update to 10.4.7. somthing could have made the settings for the fan go haywire. shouldent it kick in once it reaches a sertian temp and stay on till it reaches a lower temp that what supost to be the engage temp. mabe somthing set the enguage and shutoff the same temp hell im just guessing here but it should be somthing apple could fix with a firmware update or a OS X patch
Moo Gone, and CPU running 15 degrees cooler
Wow,
It stopped my macbook mooing, and also made the bloody thing cooler. My macbook's processor was running at 80 to 85 degrees celcius, now it averages 58!!!!! Wow, thanks for the tip....
Wow,
It stopped my macbook mooing, and also made the bloody thing cooler. My macbook's processor was running at 80 to 85 degrees celcius, now it averages 58!!!!! Wow, thanks for the tip....
MrCrowbar said:
Yeah, I know, I could have turned my macbook around and fried an egg on the back, now it just gets warm to the touch. I can believe it fixed that heat problem so easily.
Geez guys. The 'moo' happens with the cover on. It is the sound of the air moving from the fan going on, off. on, off, etc. The video simply shows what is causing the mooing. There is no restricted air flow in that video when the cover is off, and hence no mooing sound.
For the record all other PCs with the same core duo chip do not have a fan problem, and run quite a bit cooler. (Dell, Gateways) I'm waiting for later revisions before springing for the macbook.
so, i hear it
So, I finally hear this clip, but what is funny is.
This is EXACTLY the sort of sound that my INTEL IMAC 20" makes when starting up. When I start it up, the fan most likely kicks in, and starts running, and then settles down.
It must ALWAYS be on to some extent, but the moooOOOOOOoeeewww, makes it known about five seconds right at start up. And from WAKE up from sleep.
Apple must use the same fan manufacturer for both IMAC and MacBook.
So, I finally hear this clip, but what is funny is.
This is EXACTLY the sort of sound that my INTEL IMAC 20" makes when starting up. When I start it up, the fan most likely kicks in, and starts running, and then settles down.
It must ALWAYS be on to some extent, but the moooOOOOOOoeeewww, makes it known about five seconds right at start up. And from WAKE up from sleep.
Apple must use the same fan manufacturer for both IMAC and MacBook.
its not restricted airflow cause it doesn't happen when the fan is blowing air. its the sound of a small motor revving up then down, not being allowed to get up to speed. geez indeed. why are non owners explaining what is going on two feet from my face?
all they have to do is program it to go on at 64 degrees (like it does now - hopefully 68 or69) but wait till it goes down to 50 or something till it turns off (instead of 63 like it does now - causing it to turn off immediatly)
all they have to do is program it to go on at 64 degrees (like it does now - hopefully 68 or69) but wait till it goes down to 50 or something till it turns off (instead of 63 like it does now - causing it to turn off immediatly)