Fan noise - AE 1900 WT - fan is always running

Hi all,
Apologies for the double post, but I thought a new topic was in order after all. My AE-1900 WT sounds like a jet engine - the fan is always on. I am running the same installation of Windows Vista Basic that came with the machine a year ago. I used to have BumpTop installed, but I uninstalled it. I use AVG anti virus and chrome (usually with about 5-10 tabs open) Is there some kind of solve for this? I just checked the task manager and all of the chrome.exe processes add up to about 400MB of memory being used. Would I be better off using FF or limiting the number of open tabs in Chrome? Are there any wizards for controlling the fan noise? This noise is in a main living space and is really driving me nuts.
Thanks in advance for any help.

Hi Bas,
Thanks for the advice. I unscrewed all the screws in an effort to open it up, but (A) the CDRom tray was in the way, and (B) the top of the case seemed to be holding on for dear life and I did not want to risk breaking off any plastic clips that hold the case together. Any hints on how to remove the case in case I need to do that? In the meantime, I took a powerful vacuum cleaner and went over all of the vents a couple of times at point blank range (I think I heard the fan spin). Knock on wood, it is operating quietly for now.
If I get the jet engine back, I guess I'll try to take out the CDRom tray before unscrewing the back screws.
Thanks again.

Similar Messages

Big fan noise problem: the rear fan won't shut off, the BIOS won't update, systemupdate locks up

I received new ThinkStaion (oh boy, lots of memory and CPU speed, yay!)
I unfortunately left the originally installed Vista OS on there. Very much regretting that as I believe it contributes to the following problems (BIOS).
So the original problem was that after just a month of using my new ThinkStation, the System Board died, and it had to be replaced. Honestly, all I did was choose the sleep or hibernate option in Vista to shut down. Afterwards,poof! didn't even get the proper Power lights on the system. I diagnosed this with the online docs and then sat for a few hours on our tech support line doing all the same things to re-diagnose it.
So after the replacement, the rear fan will not shut off. Jet engine noise all day. I went into the system settings and selected "Quiet" for the Fan settings but that did not help.
Research on this forum resulted in the possibility of a BIOS update fixing the problem. Comparison to my co-workers systems which arrived at the same time shows this BIOS is woefully out of date, so even if it does not fix the fan issue I want to update it. However, everything I've tried to do is failing for one reason or another.
(The fan issue does need resolution since in one week I will end up sharing an office (first time in many years, thanks IBM for nothing!) so since I don't want us both to have to wear noise cancelling headsets, I'd like to fix this without having to just pull the @#$@ power to the fan. Grrrr. )
I downloaded what I felt were the appropriate Lenovo apps to update both the BIOS and the serial number but none seem to work properly from the command line in Vista. One of the two (can't recall which) asks me to reboot and it never actually shuts down. Eternal "Shutting Down" message. Ga! The other throws some gosh awful
systemupdate le
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-69701
eternal reboot
BIOSD attempt:" 2xjy26usa
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-69701
error 1275 no admin priv - I AM the administrator account, there is no other acct to use!
Then I decided Vista might be the problem and found sites recommending flashing the BIOS from a bootable USB. So I started down that path and after burning the wrong version, finally geting the AIK Vista tools installed and to the point of trying to make the USB bootable, it won't allow me to put the OS boot on it. Ah, for the days when a simple "sys a:" took care of that.
So, after reformatting the USB and pounding my head in the wall, keyboard, etc. I am at my wit's end. What to do. I just want the fan noise to go away.
This does seem to duplicate other forum messages but I can't get anywhere on this. Help!
Solved!
Go to Solution.

FYI to all the helpful folks here (and any looking to shut their jet engine off as well): Flashing the BIOS did the trick.
First I had to find a website with DOS OS files and put those on the USB instead of Vista. Oldie but a goodie, but at least it booted! No other versions would.
I had been intending to use the WinPhlash utility that Lenovo supplied with the BIOS update but since I was booting from DOS that was useless. However, I found a DOS version of it and used that instead. Boom baby! Flashed and rebooted.
It did take two boots to get it back to normal (first one gave very alarming messages about no operating system being found but I think it was just a remnant of the reboot that was triggered from the DOS session). A second boot returned life to normal and blissful silence from the server. And I was finally able to get the model and serial number back in there to get rid of the bootup message it throws for that too.
Ahhhhhhh.
Thanks to all for the hints - I believe I had gotten the idea of flashing the BIOS to solve this from some other thread I found here. This is a very nice forum to have bookmarked.

IMac fan noise noticeable?

I am thinking of getting a new iMac. Am used to a very quiet computer, using a Macbook Pro 15inch. Does the iMac have much of a noticeable fan sound? Or is it basically quiet?
Thanks,
Richard

Today I layed the mac face down on the desk, removed the power cable and all periphials. I pluged the mac in (still face down) and powered up. The fan noise was still happenig. Just above the power supply I began applying a small amount of pressure against the case. As I increased pressure the fan noise got worse. In the spot that made the most differene in noise I continued to massage the case (if you will) assuming the fan enclosure was probrobly jared durring shipping causing the blades to rub the case as the fans turn. I then powered down, removed the cable, and took of the memory door just below the apple between the speakers. This is a great design by the way. Changing memory is almost as easy as pluging in a USB device. Anyhow, I made sure everything was tight and secure in there, closed the door, put the mac back upright, and powered up again.
Under this current boot I am not experiencing the fan noise. Maybe the fans moved enough to stop rubbing the case. Lets hope. I would hate to have to take this back to the apple store. I am in Lexington SC and the nearest apple store is in Charlotte NC 1.5 hours away. It's been runnning for aprox. 30 minutes now. "Still holding" Thanks for all of the responce.
Mesaman

MacBook Pro Default Fan Noise

Hey guys,
I just purchased my new 15 inch mid-2012 MacBook Pro yesterday and am loving it so far. My only concearn is the fan noise. Are the fans supposed to run non-stop regardless of what you're doing? If so, is it normal to be able to hear the fans in a quiet room? It's not loud, just a little breeze.
Thanks

New computer.
Spotlight indexing can cause fans to rev up a bit. That is normal.
You have 90 days of free tech.support from AppleCare from the date of purchase.
AppleCare: 1-800-275-2273
Best.

Cpu fan noise

Hello! Today I installed windows 10, and suddenly my cpu fan is running pretty loud. I also changed my video card from a sapphire amd radeon 6950 to a gigabyte amd radeon r7-240. I installed the graphics card with windows 7 and I did not have this fan noise from my cpu fan, but when I upgraded, I check the temperatures and its running at almost 80 degrees celcius without doing absolutely anything. All my drivers are up to date. what could be the problem? thank you in advance, Edgard

Hello , Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More. I have read your post on how your desktop computer's CPU fan is running fairly loud after upgrading to Windows 10. I would be happy to assist you in this matter! To correct this issue, I recommend following the steps in this document on Reducing heat inside the computer to prevent overheating. This should help to prevent any excessive fan noise coming from your computer. If the computer's CPU fan continues to run loudly, I also suggest returning your system back to Windows 7 by following this resource on Where do I find Windows 10 drivers and software for my model? If the fan is still loud once Windows 7 is reinstalled, please contact our technical support for further assistance in this matter by clicking the link below to get the support number for your region.
www.hp.com/contacthp/
I hope this helps!
Regards

Fan noise after upgrade ram and OS

hello there
i have a problem with the fan noise. it's extremely high. i'm running a MacBook Pro 15" and i had OS Tiger. i bought an iphone4S so i upgraded the OS to snow leopard. all running fine!
then two weeks ago i decided to upgrade ram to have a more perfect machine, and i upgraded from 2GB (1+1) to 4 (2+2). the brand is kingston
after that there is a persistent fan noise. it went worse when i went to my windows partition. then it sounded like an helicopter... i updated all software, bootcamp drivers and everything and i don't know what this noise can be... any help?

I did exactly the same as you. The ram I installed is Integral IN2T2GAXNEX2, 2x2 Mbs.
Unlike the original ram which has manufacturer's & serial numbers (as seen in system profiler) this new ram does not.
Manufacturer:          0x0000
Part Number:          0x000000463732353642363145363830304600
Serial Number:          0x00000000
The fans now run at nearly 2000 rpm all the time, from boot, although the temperature is only 19ºc.
Has anyone added actual Apple Ram and found the same problem? (some sites claim this Integral ram to be identical to Apple Ram).
Another site suggested non apple ram may lack a temperature control chip thus inducing the fans to run just in case.

Noticeable fan noise

My fan (one of them, or both) seem to be making this obnoxious noise when they are running. The temperatures are normal, the fans are operating correctly, But when they spin up and spin down, there's this extra noise that goes along and it wasn't there before.
I fear that I dropped my Macbook Pro at one point--meaning it was in a sleeve and against the wall in an upright standing position and slipped to the floor to the flat positon. Could that have caused some misalignment? What should I do?
Not related to the noise or the fans, but when I make an impression on my trackpad I hear an odd tap sound. Just thought I'd hit two birds with one stone (question) here.

Today I layed the mac face down on the desk, removed the power cable and all periphials. I pluged the mac in (still face down) and powered up. The fan noise was still happenig. Just above the power supply I began applying a small amount of pressure against the case. As I increased pressure the fan noise got worse. In the spot that made the most differene in noise I continued to massage the case (if you will) assuming the fan enclosure was probrobly jared durring shipping causing the blades to rub the case as the fans turn. I then powered down, removed the cable, and took of the memory door just below the apple between the speakers. This is a great design by the way. Changing memory is almost as easy as pluging in a USB device. Anyhow, I made sure everything was tight and secure in there, closed the door, put the mac back upright, and powered up again.
Under this current boot I am not experiencing the fan noise. Maybe the fans moved enough to stop rubbing the case. Lets hope. I would hate to have to take this back to the apple store. I am in Lexington SC and the nearest apple store is in Charlotte NC 1.5 hours away. It's been runnning for aprox. 30 minutes now. "Still holding" Thanks for all of the responce.
Mesaman

Problems with new Yoga 2 Pro (battery, fan noise, yellow, screen orientation, on-screen keyboard)

I purchased the Yoga Pro 2 on Thursday October 17. I love the computer for so many reasons, (especially since it replaces my 4 year old Compaq that was 6.5lbs!) however, I am also having a few issues with it.
It is the i7/8GB/256GB model from BestBuy. I am experiencing the same yellow issue as is mentioned by many on here. I didn't realize it, though, until reading these forums and then comparing to my old computer and my ipad and iPhone. A little disappointed, though it looks like Lenovo may be working on a solution.
But the real reason I originally came to look at this forum is because of 2 things: my fan and battery.
The fan (on the right side of the keyboard) is always on! I didn't expect this, and am wondering if mine is a lemon or if others are noticing the same thing. It's pretty noticeable, especially in a quiet room. I was showing off my new computer to a friend and the very first thing she said was that it was loud! She was using a MacBook pro, which wasn't making any noise at all.
The second thing is the battery... I am attaching 4 photos all taken within a few minutes of each other. If you cant see them, they are all of the battery meter on my screen. I am listing the time of day (to show how much time passed), percent remaining, and time remaining:
10:04 (88%) 306 hr 15 min
10:05 (88%) 8 hr 48 min
10:09 (86%) 4 hr 54 min
10:29 (81%) 5 hr 12 min
I feel like my computer just cant make up its mind!!
Another issue I had... I turned on my computer to show it to a friend (same friend who said it was noisy) and the screen image wouldn't flip when in any of the modes. This means I showed her the stand mode with an upside down image. Even in tablet mode I couldn't get it to flip. I turned the computer off and then on again, and luckily it decided to work, but it was frustrating, and I hope it's not something that becomes an issue.
Also, when I have the computer in tablet mode, the keyboard automatically pops up when I click somewhere to type... but this doesn't happen in stand mode or tent mode. Is this normal? I would have thought that the keyboard would appear in any of those modes, since the real keyboard is not accessible in any of them. And of course now that I am testing it out while writing this, none of the modes (including tablet) is having the keyboard come on screen. Of course, I know I can always choose the icon on the task bar to bring up the keyboard, but it would be nice if the computer did it automatically since it knows there is no other keyboard accessible in those modes. Is this an issue anybody else has had?
I really do enjoy using this computer, but some of these issues really need to get worked out if I am going to keep it. I'd love to hear if anyone is experiencing anything similar, and if there are any good fixes!

I just got a Lemontine Yoga 2 Pro i5/8GB/256GB from lenovo.com and the silver one from BestBuy in the same configuraiton. The silver one has no issues except for the crazy number of hours remaining on the battery which is fine, doesn't bother me. The fan noise is very quiet, and you can only hear it if you put your ear up to the vents in a quiet room.
Now the Clementine one...It was heating up pretty good. I put my ear to it on many occasions and can hear nothing at all, the fan is either missing LOL or doesn't work. I had an issue where I left the thing on for 4 hours, but sleep is configured after 5 hours. When I tried to use it, it showed me the screen brielfy, then blank. Tried hard reset, called Support, nothing. Support says its dead. Ok, an hour later, it turned on. I'm guessing it was too hot and was in some mode to protect itself, like a smartphone that is left out in the sun for some time, it won't power on till its cooled down.
I'm still in process of trying to get a hold of Lenovo to swap it, but since they no longer sell this configuration, I doubt they'll be able to get me a new one.
The silver one from BestBuy us solid though, love it, best in class in my opinion...actually got it from Future Shop sorry...from Canada, but they're essentially the same store.

Fan noise on Macbook pro retina 15 on low speed!

Hi guys, I'm experiencing a constant low background noise from the left fan (as I'm looking at the screen). The noise is audible always even when the fans are working in their lowest speed possible the noise is there. It seems to me that that is a mechanical failure of the fan itself. It's like something is touching at the fan. When I'm slightly moving my laptop the noise is exaggerated seems like the rotor is going out of place and touching the surrounding structures. I bought the laptop on December and I didn't use it too much. I'm having a similar problem with my older MacBook Pro but the noise from the fans occurs only when I'm moving the laptop vertically and after five years off continues usage. It's anyone having a similar problem? Any advice? Should I replace the fan? Or should I take it to an authorized service?
MacBook Pro (Retina, 15-inch, Late 2013)
2.3 GHz Intel Core i7
16 GB 1600 MHz DDR3
Intel Iris Pro 1536 MB
Thank you in advance

If it is under warranty, by all means take it in for service. If there is a mechanical deficiency, it should be repaired gratis. It does sound like an internal fan problem that needs to be replaced.
Ciao.

T530: Unbearable fan noise

Probably similar to this thread, the T530 I recently received has fan noise issues. I've invested considerable time in solving this, but found that a solution can be achieved with reasonable effort only by Lenovo:
Introduction:
Most ThinkPad models do not provide the operating system (or the user) the ability to set the fan speed directly (e.g. in rounds per minute) or in a fine-grained way (e.g. as a percentage of maximum speed). Instead, there are "fan speed levels", usually 9 levels (level 0 through level 7 as well as the level "disengaged"). For each level, a particular fan speed is defined and the Embedded Controller tries to achieve this particular fan speed by measuring the fan speed and adjusting the electrical properties of the fan (e.g. voltage or pulse length or something like this).
The fan noise problem:
Every time the internal temperature sensor reaches 50 °C or so, the fan starts with about 1900 rounds/minute and then quickly goes to about 2737 rounds/minute, where it is loud. Then it takes about 20 seconds, the temperature drops to 45 °C, then the fan is switched off. Then, after maybe other 30 seconds, the cycle repeats and the fan is switched on again, ...
There are major problems with this behaviour, because:
The fan is not running continously, but pulsating.
The fan is running at level 1 at a much higher speed than needed, creating unnecessary noise.
I have measured the individual fan speeds for individual fan speed levels:
The fan speeds at different levels are as follows:
Level 0: 0 rounds/minute
Level 1: 2737 rounds/minute
Level 2: 2944 rounds/minute
Level 3: 3033 rounds/minute
Level 4: 3074 rounds/minute
Level 5: 3597 rounds/minute
Level 6: 3773 rounds/minute
Level 7: 3773 rounds/minute
Level disengaged: 4754 rounds/minute
Solution draft:
A minimum solution to the problem above would be introducing another fan speed level between 0 rounds/minute and 2737 rounds/minute, with about 1900 rounds/minute. The reason this makes a difference is that there is a fundamental difference between laminar flow and turbulent flow, where the laminar flow makes nearly no noise and the turbulent flow makes a lot of noise. (Whether an airflow is laminar or turbulent is easiest influencable by affecting its speed.)
As you can see on the observed mapping from fan speed level to fan speed, level 6 and level 7 map to the same speed.
Thus, no particular fan speed would be lost if the mapping would be changed to the following:
Level 0: 0 rounds/minute
Level 1: 1900 rounds/minute
Level 2: 2737 rounds/minute
Level 3: 2944 rounds/minute
Level 4: 3033 rounds/minute
Level 5: 3074 rounds/minute
Level 6: 3597 rounds/minute
Level 7: 3773 rounds/minute
Level disengaged: 4754 rounds/minute
Solution implementation by user is impossible:
The problem, however, is that, while a user can decide which fan speed level should be active at a particular time, the user cannot decide which fan speed should actually be achieved for a particular level. Thus, the user can either decide to have 0 rounds/minute (which is not particularly sustainable, because the equipment becomes hotter and hotter) or to have 2737 rounds/minute (which is not particularly sustainable either, because both the user and other people arund the user's Lenovo computer are distracted from work).
The mapping from fan speed level to fan speed is actually stored in the Embedded Controller Programm ("ECP"). This Embedded Controller Programm is freely changeable or configurable by the user. Only Lenovo has the source code to this Embedded Controller Programm, and actually only Lenovo may know how to disassemble such a binary Embedded Controller Program in case the user wanted to change it. Thus, even advanced users cannot fix this problem by fixing it where it should be fixed.
It should be noted that, because fan speed is a long lasting issue at Lenovo, a third party has been even developed an after-market hardware solution: TPFC. However, this solution probably voids the warranty, and it work arounds the problem at the wrong place, and it costs time and money and effort to actually install it.
Only Lenovo can fix this problem:
How Lenovo should fix the problem
Thus, this is my call to Lenovo to fix this problem (at least for the T530 series, but probably W530, T430 are also affected). Ideally, the solution should be as follows:
Change the Embdedded Controller Program such that the mapping from fan speed level to fan speed is as follows:
Level 0: 0 rounds/minute (no noise level)
Level 1: 1500 rounds/minute (low noise level, sweet spot)
Level 2: 1700 rounds/minute (low noise level, sweet spot)
Level 3: 1900 rounds/minute (low noise level, sweet spot)
Level 4: 2100 rounds/minute (some noise level)
Level 5: 2600 rounds/minute (high noise level)
Level 6: 3100 rounds/minute (high noise level)
Level 7: 3773 rounds/minute (high noise level)
Level disengaged: 4754 rounds/minute (high noise level)
The reasons for this fan speed design are as follows:
The "sweet spot" where both the fan will run most of the time and where the user would not complain is between 1500 rounds/minute and 2100 rounds/minute. If the fan needs to be faster to keep the system cooled, then the user is likely to run the system with considerable load to CPU or GPU. In this case, there is no option to reduce the fan speed, but also in this case, the user probably accepts the fan noise for the computing power delivered.
The "sweet spot" in terms of CPU load is where the users do not accept fan noise while actually generating only minute CPU load (e.g. during web browsing or writing documents, where the CPU and the GPU is mostly idle). For many users, this is their normal working state (e.g. working in a quiet office, a very quiet library, a quiet bedroom, a quiet boardroom, ...). These scenarios are where Lenovo ThinkPads currently fail to deliver, unnecessarily
The "sweet spot" needs higher resolution (more fan levels allocated to these fan speeds), because slightly different load patterns may make it necessary to go from one level to the next higher level, but then the next level still should be bearable. Conversely, the higher levels (e.g. from 2600 rounds/minute on) do not need such a high resolution, because for most of the users, these levels will be only attained rarely anyway, and then they are accepting the noise.
Currently, there is no fan speed level at the sweet spot. With the proposed fix, there would be 3 fan speed levels at the sweet spot, with a neighbouring fan speed level (2100 rounds/minute) still being bearable when considering the performance delivered.
There is no fan speed level below 1500 rounds/minute. This is ok, because the fan is nearly inaudible at this speed anyway, and below a certain speed, there is a risk (depending on the fan) for the fan to actually not rotate at all (e.g. due to friction).
How much time and effort would Lenovo need for fixing the problem:
The Lenovo engineer responsible for the Embedded Controller Program of the T530 should need less than one day to change the source code of the Embedded Controller Program and to recompile it. The engineer may need one additional day to test this program (e.g. for different types of fans), and there may be a need for an additional day to release the update to the BIOS and ECP. All in all, Lenovo should not need more than 3 engineer-days (maybe worth 1800 USD) to fix the problem.
Why Lenovo should fix the problem:
Probably the whole current T series (T530,T520,T430,T420) as well as the current W series (W530,W520) fails the users in any of these scenarios (among others):
User working in a quiet office.
User working in a quiet library.
User working in a quiet bedroom.
User working in a quiet boardroom.
Thus, the Lenovo T series is currently not usable for many business users and almost all students. This problem should cost millions of USD of revenue, while fixing it would cost it maybe 1800 USD.
Incidental remark: Lenovo subsidiary can do better:
Lenovo has bought the majority of the Germany consumer electronics company Medion. Medion currently offers a consumer level notebook "E7222" for 499€ including German VAT. Despite of this low price, this notebook delivers very good fan control (that is: the notebook is nearly silent when the CPU is near-idle). (However, being consumer-grade, it does not offer a docking-station or a FullHD screen or WWAN.)
What will I personally do:
Some weeks ago, I had a powerful W530. I returned it due to fan noise for cash refund. Now I have the T530 (Serial number: R9RRF26) which has exactly the same problem. The deadline until I can legally request a cash refund runs until 2012-09-07. I hereby ask Lenovo:
To fix the problem and release an ECP or BIOS update until 2012-09-06 (it is doable, see above) or
if the problem cannot be fixed in this time (e.g. due to bureaucracy): provide me with a written statement (e.g. e-mail or forum post is sufficient) that my legal cash refund deadline (German law: §355 BGB) will be voluntarily extended by Lenovo (to some date Lenovo thinks it needs to fix the problem).
If none of the above happens, I will have to return the T530 as well. This is the 2nd chance Lenovo has gotten from me, there will be no 3rd chance. I would have to turn to Fujitsu (they do have business-class machines with big batteries, FullHD, WWAN) and they probably have better fan control.
Solved!
Go to Solution.

kaawee,
Thank you for the considerable thought that you put into your summation / analysis and proposal for a change.
I don't agree that you are wasting your time as we did make EC changes on the X220 and T420s to change fan behavior (along with several other systems). However, not all customers agree that the changes made the system behave the way they wanted and were completely satisfied (hence some of the dissenting opinions expressed here).
We are interested in feedback on T530, W530, T430 fan concerns and we are investigating. It is possible that a future change might be made, but I cannot say for certain that it will, nor can we commit to making this change within 4 days (2 now remaining) from your original posting.
Best regards,
Mark
ThinkPads: S30, T43, X60t, X1, W700ds, IdeaPad Y710, IdeaCentre: A300, IdeaPad K1
Mark Hopkins
Program Manager, Lenovo Social Media (Services)
twitter @lenovoforums
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Mac Pro will not boot, constant loud fan noise and nothing else

hello,
earlier tonight,i put my mac pro on sleep, then later on, when i wanted to take it off sleep and use it, it made the loud fan noise, which it always does but goes away, but this time it the fan wount slow down and the loud noise stays and i dont see anything on the screen. im guessing the fan noise is the ATI x1900 card...
any help please..i just bought it 2 months ago...

Hi, here are the steps I would go through. I would unplug the Mac Pro completely from everything and look at the video card's fan intake to make sure it isn't plugged and just make sure everything "looks" correct. I would then plug the machine back into one monitor/keyboard/mouse (leave all the other peripherals disconnected. Once that is done push the power button. Does anything happen? If not then if you have another mac and an external hard drive, make a copy of the OS on the drive and see if you can get the Mac Pro to boot off that drive. If the video card doesn't work then it will not show anything when booting off an external drive. If the external boot does work then I would suspect that you have a bad hard drive (or it crashed). At that point I hope you have a back up of all your data and such.
Mind you these are steps I would go through. What a nightmare. One other thing to check, make sure your monitor didn't die.
Message was edited by: jlseattle74

Minor Fan Noise (not typical, I don't think)

Have a new 13" macbook pro (june '09). The noise I'm hearing is not the typical HD "beep" noises or high pitched whines or any of that. It's a very subtle noise, seemingly from the fans. It sounds like a clock ticking at a faster rate. There's no vibration to the laptop or anything. I tried using compressed air at the exhaust but nothing. Help?

Hi there, I have the exact same model and this is exactly how I would describe the sound made by my Pro. I think it is actually giving me tinnitus.
It seems silly mentioning it as the level of sound is so low but it really does cut through me like a knife. In my case I would say that the noise is emanating from the far left side of the body, near the escape key. It is so subtle that the angle of my head affects to a large degree my perception of the sound. But once you notice it you become obsessed by it.
I also started telling myself that it has always made this sound but I honestly don't think I would have lasted 3 months with it were that the case.
I assumed it was the processor but I have no idea where that would be within the casing of the macbook so don't know if that is likely or not.
Does is the fast ticking clock sound constant or intermittent in your case? Mine is intermittent but the gaps in the ticking are brief, less than a second.

IMac Fan Noise - Not The Usual Problem

Hi,
I have seen plenty of discussions on iMac fan noise but mine is a little different. A week ago, a 'tink' noise (similar to tapping your fingernail on a glass) started coming from my mid 2011 iMac. At first, I thought it was the "click of death" for my hard drive, so I replaced it myself. This didn't fix the noise, so I ran an extended hardware test. This came back with a 4MEM error. I had some spare RAM, fitted it, ran the test again, no 4MEM error.
So, I booted the iMac again. 'Tink'... 'tink'. I finally located it to the bottom right of my iMac, where the optical drive fan is located. This fan has always rattled a little now and again but now it seems intent on driving me round the bend with its very own form of torture. At first, the 'tink' was now and again, but now it constant. 'tinktinktinktinktink'. Is there a way to stop the optical fan for now? I don't use the optical drive often anyway. Or would it just be a replacement fan?
Resetting SMC or PRAM does nothing.

This may be way off target, in which case ignore me. Do you have an app called Free Memory installed? There have been a few posts on here where it seems to cause repetitive odd noises to occur, particularly when running Mavericks?

Helix Fans in keyboard portion ALWAYS running at full speed

Hi,
I was wondering if anyone from Lenovo support (or a fellow user) could recommend a Lenovo sponsored solution for the problem regarding the fan in the keyboard tray always running at full speed on the Helix? I know there are a bunch of 3rd party fan control solutions out there, but some users have cautioned that they cause unexpected touch screen problems.
When I use my Helix to remote login to other computers, the fans in the keyboard dock slow down and stop, and the noise difference is incredible. It would be so much better if the Helix was always that quite...
Any solutions?
Thanks!

bgiles9091,
We've had fan feedback for a while in the forum on helix. All of the samples here perform as expected, so to revisit the issue we may need a sample from a customer.
I would also ensure you are at the latest BIOS and power management driver levels, and have installed the firmware update on your keyboard dock.
Thanks,
Mark
ThinkPads: S30, T43, X60t, X1, W700ds, IdeaPad Y710, IdeaCentre: A300, IdeaPad K1
Mark Hopkins
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IMac sleeping automatically more and more frequently with hudge fan noise

A few days when I was watching a DVD my computer started to sleep suddendly.
Of course I desactivated sleeping option in preferences panel and I also tried to reset the nvram without success.
It was getting worse when I tried to play games (on DVD) : every minutes the computer started to sleep (iMac G5 iSight 20")
Now it is not a matter of DVD, my computer often sleeps every 20 seconds even during startup, it is impossible to work. When I restart there are hudge fan noises which are not disappearing after starting.
The only way to work without the imac sleeping every 20 s is to boot under my safe tech tool pro partition.
I tried to repair permissions, reinstall combo update, delete caches with Onyx, ran techtools tests and as I said reset nvram...without result
If I can get some help it would be nice, I am currently backing up all my data in case...

You are dong the right thing by backing up, it sounds as if your power supply is going bad. What did TechTool report?
Have you tried booting from the install disc and verifying/repairing the drive? Try running the Apple Hardware Test as well, but it doesn't always catch things. It does sound like a hardware problem, if none of the suggestions helps, call Apple.

Fan noise - AE 1900 WT - fan is always running

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