Software :: Fan Noise In Mac Pro 3.1?
Dec 15, 2009
bought a used Mac Pro 3.1 tower about a month ago - did a clean install and am running OSX 10.5.8 - a couple of days ago one of the fans started acting up (the rear/single I suspect) - Shortly after start-up one of the fans kicks up to high speed and stays there - the only way to stop it is to put the computer to sleep or turn it off - after that began to occur I installed a small app to allow me to see CPU temp - heat does not seem to be the issue - the fan is running on high now and core temp is 81F - or so the software says - I cleaned out the tower this afternoon with a brush and a vacuum - it was very dusty but is no longer - at the same time I checked plug connections which appeared fine - so far no joy - it still makes as much noise as the G4 it replaced -
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Dec 20, 2010
I just got my 2.0ghz Alu Macbook a few days ago and everything works perfectly well, the thing is that after day one the magsafe started to emit a low pitched electrical whistling noise. It tends to be there a few minutes after booting into the OS and then it turns down to almost unhearable, but I experienced it returning after a few hours of use and then disappearing again. If I move close to the escape key I can hear a crackling noise emitting from the magsafe.I'm not trying to be overly nitpicky or anything but I read somewhere that if it's doing that it would be a faulty Mag-Safe board or something.
Does any one you guys know anything about this? I have the 14 days to return it as I bought it online from the Apple Store so if it's a faulty part that might die/break/ cause problems later I might have to.
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Oct 1, 2009
Sometimes I lift and carefully move my 17-inch MBP a short distance to another flat surface without putting it to sleep mode, it starts making really loud mechanical noise when I put it down, so loud that people in the same room can hear the noise and I can feel vibrations too! What causes this? Where does this noise come from? Is my MBP defective?
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Dec 26, 2010
My first generation unibody Macbook hasn't had any problems to this date but now it's constantly making that mechanical loading-like noise which is usually heard when the Macbook is switched on (the noise before the start up sound) or when the lid is opened to wake up the computer. Is there a fix to this?
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Jun 6, 2009
On my 13" MacBook Pro, the hinge makes a cracking noise on the right side of the computer (near the power button) when the screen is positioned all the way back.The entire hinge also makes a loud popping noise when I adjust the screen position. The screen seems very tight, and it takes a little bit of effort to move the screen, and when the screen is moved it makes the loud popping noise.
This is probably going to make some of you guys cringe, but sometimes putting pressure down on the top of the case close to where the black hinge meets to unibody enclosure seems to stop the popping noises. Putting downwards pressure on the hinge, or flipping the computer over and putting pressure on it that way, also seems to alter how much popping noise there is.
If I mess around a bit with applying pressure on different parts of the computer around the hinge, I can usually eliminate the noise. But, the cracking noise when I put the screen all the way back is still there.Any ideas what to do? It's not interfering with the operation of the computer, it's just incredibly annoying and this is only a four month old machine which shouldn't be creaking and cracking already.
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Jul 14, 2008
Has anyone else had problems with an old G3 Pismo making an annoying squealing noise when plugged into a charger? There's a lot of noises mentioned in mac/apple forums but none of them relate to this one. Here's what it is not:
It's not coming from the screen or the fan or the speakers (it's under the keyboard). It's not low or slightly annoying (it is a loud squeal). It happens only when the power adaptor is plugged into the laptop.(it used to cease after I unplugged the power adaptor and plugged it back in three times; now that solution doesn't stop the noise anymore). It charges ok, and runs ok, scream or no-scream. It's quiet right now, but if I move the adaptor to another plug it will start again.
I was going to live with this, but today after an hour of operating quietly it just started again, and I hate to leave the house with this going.(it will scream whether the laptop is on or off. I have a really old battery and cannot replace it (I am currently staying in Mexico for the summer). Battery life is 45 min. I haven't tried pulling the battery out. That would be too easy.
This all started when I bought a replacement power adaptor (generic),after the original one melted down, but I could stop the screaming by unplugging/plugging it in again once or twice. Then I bought an expensive iGo adaptor, and it does the same thing.
I Did the PRAM and PMU reset.I can hear it over music or the tv. It grew lower in pitch today after squealing for a half hour. I'd normally not let it go on that long, but i was
in the other room.Is my PISMO dying?
(400 mhz pismo G3 500 sdram, osx-10.39, no os-9 or Classic, new 80g HD)
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Aug 19, 2008
I'm new to this forum and I just bought a new iMac 20" 2.66GHz, I turned on my computer and noticed a weird sound (buzzing or humming noise) not loud but loud enough to here I notice when I messed with the Brightness it went away is there something wrong with that or is that a known issue?
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Oct 25, 2008
I just got my macbook pro yesterday and ran it all yesterday not hearing anything. Today when I woke it from sleep I could clearly hear the fan or hard drive going. I was in a quiet room and it's quite annoying.
istat says its at 2000 rpm so thats when I started thinking it may be the hard disk. It does pulse every now and then but thats even while it's just sitting idle.
I guess I could live with it but its just annoying. Anyone else having this?
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Apr 9, 2009
Is it normal for the mac to make such a loud noise when even just inserting a cd or dvd?
My lap top has always loaded like this from day one
So I thought it was normal until my friend said it sounds really odd
So my question is does everyones mac make this crunching noise when putting in a dvd or cd?
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Oct 18, 2010
I have a MacBook intel 2.1GHz with 1Gb RAM running 10.6.4 Everything is working fine except that the DVD player quite frequently makes a sound as if it is trying to load a disc, this happens every few hours and when there is no disc anywhere near to it. I have run the usual checks of permissions and an HD check with no reported errors.
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Dec 4, 2010
I recorded this using the internal microphone
Left Speed : 6k RPM
Right Speed : 6k RPM
[URL]
Here is another recording:
Left Speed : 6k RPM
Right Speed : 2k RPM
[URL]
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Jan 10, 2011
As per title... Loud grinding sound, goes away on restart, seems to be happening more consistently in the past few days (noticed it last week for first time). The MBP is 3 years old I have an appointment at apple store for tomorrow, im pretty sure they'll just say that the right fan needs to be replaced (applecare warranty ended a month ago of course)
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Oct 1, 2006
I've got a RevB iMac G5 20" (1.5 GB ram) for a year and a half now, and since the last six months, the fans becomes quickly really loud for no apparent reason. It seems that my iMac think he is an helicopter and he want to take off by spinning it's fans the fastest it can. This is really annoying and it was not like that in the begining. It prevents me from doing audio conversations: the fan are so loud they make it impossible for the other to hear something else than my fans. Try convincing your friends to "switch to mac" with noise like that during an audio conversation! Sometimes just with firefox running I have my fans spinning really fast, with no intention of stopping anytime soon.
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Mar 14, 2007
I had the fans and HDD replaced in my 1.67Ghz PB G4 in January, but I think the fan noise is getting too loud again, plus the HDD randomly squeaks and squeals. The problem with the random squealing is that I can never start the camera on my phone quick enough to record it, and it is completely random! Does anyone know what the normal operating noise is for my laptop, or where I can find this out from? The normal fan noise is OK, but when the processor is under full load and the fans kick in to full speed, it sounds like the vacuum cleaner is on in the room. Should I take it back to the shop? It was 'repaired' roughly 2months ago.
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Oct 17, 2007
I get some fan noise occassionally on new Intel iMac .. is this normal ? Sometimes their is no noise .. apart from this everything is working fine ... look forward to some replies in regards to fan noise.
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Nov 28, 2007
There is a weird noise coming from MacBook whenever i start my New MacBook(SR/2.2GHz/4GB RAM). Is there any fix for this?
I just bought this 2 weeks ago.
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Nov 17, 2008
There seems to be an occasional clicking noise coming from the hard drive on my new alumn macbook . is that normal? anyone experiencing the same? diskutility says nothing is wrong with it and it seems to be functioning fine so far.
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Mar 14, 2009
I just bought a new iMac (2.93) today and every time I turn it on it makes a weird zzzZZ noise. Same thing happens when I wake the computer up from sleep mode. It sounds like its coming from the disc drive area. IDK if this is normal or what to do to fix it
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Mar 19, 2009
I just got a replacement Ati radeon 3870 because the first cards fans didn't run at all for a minute or so and would then spin up full for 30 seconds or so and so forth, regardless of what i was doing.
My replacement card came today but this cards fan runs full all of the time?
Surely this is a driver or fan control issue or something, my previous nvidia 8800GT was silent all of the time, but alas I could not play Call of Duty 2 with that card hence the switch.
Is there anything i can do to help cool the card besides fitting aftermarket fans which i don't feel confident doing and they don't seem to support the 3870 100%.
Maybe open up the PCI slots or upping the Mac Pros fans via SMC Fan Control?
Or do i return it and switch back to a 8800gt and forfit Call Of Duty 2 or wait and switch it for a 4870?
I'm going to try and live with the fan noise tonight but does anyone own a quiet 3870?
For the record I'm running a 2008 2.8GHZ 4-Core Mac Pro with 8Gb of Ram and 10.5.6. I tried a clean install on a new hard drive and the card behaved the same.
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Apr 16, 2009
What is that noise when you turn on the macbook? It is like some sort of "scanner" noise... i dont know how to explain it. what happens inside when the noise happens, what is the computer doing?
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Jun 5, 2009
I have a macbook 13 inch alu 2,4 ghz And im a little concerned if its normal that it makes like a really wierd noice when i put in a dvd or cd.
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Jun 9, 2009
awhile ago I posted about a high pitched noise that I thought was cpu whine, well Here I am, about 3 Months after it had initially started, It did stop for awhile and now its back. This time around though, I noticed that it only does it when I use the trackpad, In the time that it had stopped doing it, I had purchased a mighty mouse, and since it started doing it again, about 3 or 4 days ago, I noticed that it only does it when i use the trackpad and not the mouse. If it helps any, it is a bluetooth mouse.
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Aug 26, 2009
I just got a 2.66 Quad-core Mac Pro. I've read a lot of comments about how quiet they are, things like "silent", "can't tell that it's running", etc. Mine is certainly quieter than my G5, but it is far from silent. I hear the typical high-pitched whine that I expect from computers, not loud, but there. But the sound that's starting to bug me is a low-frequency sound, almost like motor. It oscillates in volume from. It's not loud, but it has an irritating quality. I can't tell where it emanates from almost silent to too loud. It's not the graphics card or the disk drive, and all the fans are running under 1000 rpm. I'm guessing this isn't normal, but does anyone have an idea of where the sound is coming from?
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May 22, 2010
I'm getting a loud noise which sounds like it's coming from possibly the fan when I try to play a disc from my CSI season. The dvd does play with picture and sound and everything fine but the noise persists until i eject the dvd. It is a loud vibrating sound which starts shortly after i insert the disc. It simply sounds like the fan is hitting something inside the laptop but it stops the instant that i eject it.
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Jun 4, 2010
I hear some noise in my macbook pro and i dont know the reason. i tried everything to fix such as reseting SMC but it didnt fix. I dont really know the reason. Is it because i upgraded my mac os x from 10.5.8 to 10.6.3 and should i format my computer? the noise is not that much however when i compare it to other mac it seems that something is wrong. the noise is from the fan beside the mouse pad.
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Jun 24, 2010
I am just wondering why, when I close the lid, it makes a ticking noise. It is as if something is stuck in the hinges but I've checked and cleaned it and it seems fine. Anyone else had this problem or know how I should fix it? It used to be smooth and ticking-noise-free, but now its gone funny.
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Jul 8, 2010
I have an early 2008 Mac Pro. For the past 6 months or so, it has been making a whirring, clicking, chirping noise. It does this constantly, no matter what I'm doing. I replaced the hard drive, but that didn't help. The sound appears to be coming from the rear of the computer, near the top. (where the power cord plugs in).
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Feb 20, 2012
I have a 3 month old MacBook Pro 13inch, whenever I 2 finger scroll on webpages in chrome or safari there is a scratching sound which comes from the top left of the mac. The sound is similar to processor noise but can be louder. I have noticed that the sound is less amplified when running without the power cable attached, but is still there.
Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.7.3)
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Apr 24, 2012
constant ticking anybody know what this is
Info:
iMac, iOS 5.1
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May 17, 2012
I am hearing a loud noise on the fan of the imac and it is ejecting a lot of air. In the year I used it it has never happened , even when it was hot the back. is it normal?
Info:
iMac, Mac OS X (10.6.8)
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