Noisy Fans Etc.

Hi All,
Two questions – How do I find out if my Mac Pro is 'early 2009' or not? I had it in January 2010 after claiming on my insurance here in the UK. Is there a code number I can look up?
Secondly, how noisy should my Mac Pro be? This one sounds a little bit like a fridge with a low oscillating hum. Is this normal? It's certainly irritating.
As usual, any advice would be most welcome.

I've got the same machine and the same sound oscillation. I had Apple replace the power supply with no change.
The problem occurs because there's several fans running in there and intake and exhaust run at approximately the same rpm. When two devices run close to the same rpm or frequency (or multiples like 2X) they go in and out of sync. It's called "beating" where the sound peaks alternately reinforce and cancel each other. Made me nuts.
I found it helps to use the smcFanControl app to raise the rpm of the intake fan to about 830rpm. It also helped to turn the unit so that the CD doors faced towards me. My unit is below my desk and originally the unit rear and left side was close and parallel to a desk panel. This set-up amplified and reflected the sound. You could also try sound insulation panels on any nearby reflecting surfaces including the floor and underside of the desk.

Similar Messages

G5 Dual 2.7Ghz Constant Noisy Fans

Hi there,
I'm really annoyed with this whole situation since Apple don't appear to have publicly acknowledged the noisy fans/chirping noise problems G5 users (with varying spec hardware) have been experiencing and posting about for over a year.
Anyway, here's the deal:-
My main spec is as follows: G5 Dual 2.7Ghz/4.5GB RAM/Mac OS X 10.4.6 installed on the shipped Western Digital 250GB SATA, 2nd internal 250GB SATA (Maxtor DiamondMax), 20" aluminium Apple Studio Display.
Since I performed the upgrade to 10.4.4 back in early May 2006 the fans have been constantly on as soon as the login window appears and remain at full pelt all the while the machine is on - clearly unacceptable and unusable. Fortunately for me it's not my only Mac although this is besides the point as I have now had an unusable machine for over a month and not been able to do any work with it - it is a production machine used for making music with Logic.
The bottom line is that I've not been able to make any music!
None of the suggested resolution methods that have been written about in the forums or elsewhere on the 'net (eg. installing CHUD tools etc) have made a blind bit of difference.
Furthermore, I have always had the chirping sounds since I purchased the machine in person from the Apple Store in July 2005.
For the past few weeks I was convinced that the fan problems were caused by the 10.4.4 update (when it started) and that the subsequent 10.4.6 update hadn't cured the problem.
Prior to this, I hadn't run a software update since December 2005 purely because I had heard horror stories from friends and other G5 users posting to forums etc. - if it ain't broke, don't fix it right?
I haven't really had the time to devote to trying to sort the problem out but I decided earlier today that tonight was the night to have a look at it.
Having spent all evening trying various things I am now convinced it is a hardware problem as opposed to being software related.
Here's what I tried earlier with the machine spec as above:-
1. Booted the G5 with Disk Warrior 3.0.3 boot CD
2. Ran all Disk Warrior tasks on both drives - eg, 0% fragmentation
3. Re-booted, fan noise still there from login window
4. Manually ran daily, weekly and monthly CRON jobs from Terminal - OK
5. Ran Disk Utility on main HD, repaired permissions - OK
6. Ran Disk Utility on secondary HD, verified disk - OK
7. Powered down
8. Removed all leads incl. power, monitor, all USB and Firewire
9. Removed 4GB RAM leaving 500MB stock RAM, reset the PMU
10.Ensured the removable fans (covering the RAM) were re-seated firmly
11.Replaced plastic 'door', attached monitor (DVI only) and keyboard USB
12.Re-booted, same problem, fan noise still there from login window
13.Attached Firewire HD with Mac OS X 10.3.8 installed
14.Selected Firewire HD in the Startup Disk system pref
15.Rebooted into Panther, same problem, fan noise still there from login window
AAAAAARRRRGGHHHHH!!!!!!!!!!
The last time I booted my G5 from the Panther Firewire HD (which incidentally hasn't been used since) was prior to me doing the 10.4.4 update on my G5's main boot drive and there was NO fan noise whatsoever!!!!!
Clearly I need to call and speak to someone at Apple tomorrow as the G5 is nearly one year old and I need to get this problem sorted out before it's out of warranty.
It just seems an odd coincidence that the problem started when it did!
Anyway, if any Apple techs or other G5 owners with a similar setup (specifically the dual 2.7) are reading this I'd appreciate a response or some advice for other things to try.
I'm just really frustrated and a little annoyed that having been a very content Mac user for years this is the first and only time I've ever had a problem with a piece of Apple kit.
Like I said at the top of the post, I can't believe the lack of acknowledgement on Apple's part as it would appear to be a known/common issue.
Just my £0.02.
Thanks for reading/listening.

Ok, take a look on your plastic shield, one of the bottom "tabs" should have a shiny metal coating of some sort, if it's gone or moved, then this could be the reason your fans are going "turbo".
If your fans are just at a high speed all the time, consider lowering your room temps to about 75ºF and see how it goes after a few hours/days.
It's most likely a wise decision to have the G-folks take a look at it anyway before it gets out of warranty. you might need a fan calibration or firmware change.
You still have a chance to buy AppleCare and get it registered before the 1 year warranty expires.
The Dual 2.7 is the hottest PM of the bunch, overclocked I would think.
You said the WD drive was OEM correct? Came with the PM stock?
Because the newer WD drives now have a new SATA spec that requires a SATA PCI card to function correctly in PM's.
Have you tried a complete reinstall of the OS?
Did you upgrade Tiger over Panther? (not good, less secure, previous exploits)
Do a backup, a clone of your boot drive to a external using Carbon Copy Cloner (check in the forums for their advice!) would be better.
the c boot off of Tiger install disk (not upgrade version) and from the installer menu Disk utility Erase w/Zero the boot drive (takes longer but writes are more reliable) and then reinstall Tiger, software update till clear, reinstall iLife '06 and all apps from fresh sources, avoid Migration Assistant (too blind, no app DRM copies) install files and see if your fan problems return.
Sometimes if Mac OS X is not operating correctly it won't tell the hardware to turn the fans down.
Don't install any OS/root level/admin password type programs or hacks until you've had a chance to clone that pristine puppy to a external drive (preferably 2) and keep it disconnected for safekeeping.
It's takes practically no time to option boot off a clone to recover, repair or reverse clone to the original drive. If your exploited, first c boot and Zero the infected drive before hooking up and option booting off the clone of course.

G60-445DX Overheat and very noisy fan

Hi , this is not new my laptop overheats and has noisy fan. My question is how can I get to speak with the support team after my warranty is finished ?

Why you are in this situation is sort of an existential question I cannot answer. You can try calling HP and see if they will make an exception but the few times I have seen that happen the warranty was up by a few weeks at most. We here at this Forum do not work for HP. We can help you fix the laptop by linking you to information, manuals, parts sources, etc. but we cannot make HP do anything. You are really challenging the concept of a limited warranty and I think that issue is not even worth debating. You can also try a simple fix. Hold a paperclip in the fan grille to stop the blades from spinning. Blast in the strongest stream of air you can find. Maybe the fan is just clogged.

Why Hp does not find any solution for Noisy Fan systems ?

I got DV6t core i5 6gb ram + 1gb Ati Radeon Graphic Card (6490m) + bluetooth + Bluray
I have to return it because of that noisy fan ; i was a new member of Hp family and i never investigate about that product for Laptop. After it got that gorgeous Laptop , i got this fan issue ; and i research that fan is working normal/anormal ; what i find out is Hp has a Noisy Fan Issue on all of the Video clips , Forum Websites even its own website ; I realy didnt know till i got it. If that is a common issue , Why that big brand HP doesnt solve that problem since many years ? I sincerely doesnt want to return this item because of fan ; because there is no comparative product in others company has .... (Bluetooth + Bluray + Finger print + 1gb (Integrated Graphic) and $749 ; i can not find any brand or product which includes that options in this price ..... So UNFORTUNATELY i am returning that Beautiful Laptop Because of ridiculous fan noise ; is that really hard to install a fan which is really silence ??? I have a Toshiba brand laptop , even the fan is working hard there is no bothering noise at all (Even its 4 years old) . I was thinking that Hp product has high performance equipment thats why this fan works hard or noisy because it could be stronger than my Toshiba which has core 2 duo technology 256 mb graphic card ; But i was wrong because of this video clip ; http://www.youtube.com/watch?v=-yLEXZGRGPY

I got DV6t core i5 6gb ram + 1gb Ati Radeon Graphic Card (6490m) + bluetooth + Bluray
I have to return it because of that noisy fan ; i was a new member of Hp family and i never investigate about that product for Laptop. After it got that gorgeous Laptop , i got this fan issue ; and i research that fan is working normal/anormal ; what i find out is Hp has a Noisy Fan Issue on all of the Video clips , Forum Websites even its own website ; I realy didnt know till i got it. If that is a common issue , Why that big brand HP doesnt solve that problem since many years ? I sincerely doesnt want to return this item because of fan ; because there is no comparative product in others company has .... (Bluetooth + Bluray + Finger print + 1gb (Integrated Graphic) and $749 ; i can not find any brand or product which includes that options in this price ..... So UNFORTUNATELY i am returning that Beautiful Laptop Because of ridiculous fan noise ; is that really hard to install a fan which is really silence ??? I have a Toshiba brand laptop , even the fan is working hard there is no bothering noise at all (Even its 4 years old) . I was thinking that Hp product has high performance equipment thats why this fan works hard or noisy because it could be stronger than my Toshiba which has core 2 duo technology 256 mb graphic card ; But i was wrong because of this video clip ; http://www.youtube.com/watch?v=-yLEXZGRGPY

Noisy fans on all the time

I have come over from the dark side today (PC to Mac switcher). I got a second hand Mac Pro 2.66 quad with four HDD and 4GB ram and i seem to have very noisy fans. I did find this article
http://www.amug.org/amug-web/html/amug/reviews/articles/intel/fan/
which mentions that extra drives cause more noise due to extra heat and less airflow but this is just silly, they sound like they are on full ALL the time.
I have alread tried resetting the smc_rst button on the logic board but that did nothing. I also tried restarting the machine with command, option, p, and r down before the grey screen on startup and that did nothing.
Is this normal. is it just down to lots of HDDs/RAM or should i be worried?

Mac Pro most likely for "MP" shorthand.
Considering how the drives are placed, can't see that they block air, though they may not get direct ventilation.
FBDIMM memory needs to be kept cool and the top memory Riser and higher density DIMMs do tend to be as much as 10C higher (with 2GB DIMMs running the hotest).
I wonder if you got it with a system already installed? or did a full 'wipe' of the system drive and started fresh. There is a little program most people now use smcFanControl which can force the fans to run at a minimum rpm (though not the PSU fan, either software defect, or the logicboard won't allow forcing it if the sensor doesn't register a higher temp).
SFC would put a little menu item on the menu bar and to acces the program preferences. There would also be a log-in] in user accounts, and a startupitems in the top level Library/Startupitems usually.
Also, look on the Dock for items that can be controlled from there to "open at login" or disabled without having to open any control panels.
If it was me, and I bought a used system, other than direct from Apple Store (Specials, great deals on refurd equip.) I would start over with installing the system.

Trouble running hardware test on 07 iMac with noisy fan

Hello
I have an 07 iMac with a noisy fan- I've tried vacuuming out dust from the back but want to avoid taking it apart if possible...
I read online I should run the hardware test, but since I am running Mavericks the Apple support advice is to run the original OS X install disc and restart (holding down D or Option+D)...
Long story short I got a replacement disc from Apple (I'd lost the original) but the iMac ejects it when I restart following the process above... could it be my bluetooth keyboard? Hopefully not since I no longer have the original hardwired one... or does anyone have any other ideas for either how to get to the hardware test... or fix the fan (without a third party app just stopping it)
Thanks!

Try holding down the Option key to get the one time boot manager screen then select the AHT. Not sure as Apple moved it around on different install discs but it might be on the Applications discs and not the OS X discs.

Noisy fan (or fan-like) sound coming from machine. Thoughts?

My macbook pro is from 2008 to start. I had the computer completely refurbished back in August 2011, though.
However, in the last two days, it has twice produced this impossible-to-miss noisy whirring/rattling sounds that sounds a lot like a very noisy fan. The first time, it last for about 5 seconds just as the computer was starting up after I'd left it closed and off all night (leaning against the wall). The second time, however, the computer had already been on for several hours, always upright, and just for some random reason started making the same noise. This time it lasted for a good 15-20 seconds.
Any thoughts on what could be causing this sudden noisiness? Whatever it is doesn't appear so far to be affecting the actual functions of the computer itself.
Thanks!

HI,
Probably a good idea to run the Apple Hardware Test just in case and make sure you have all your important files backed up to an external source.
Carolyn

Portg Z30-B-117 noisy fan

Hi,
I have a problem with my new notebook Portg Z30-B-117,
It has realy noisy fan, I was forced to use baterry saving mode, without that I can not work on this machine.
The fan speed is absurdly designed.
It has much more speed even when it does not heat up.
Please make a new bios with clever fan speed, then it will be the best notebook on the market!
Thanks in advance.

Hi, I bought Portg Z30-B-119 a few days ago and I agree this would*be the best laptop/ultrabook on the market, if not for two annoying problems that can easily be fixed by Toshiba.
1/
The fan indeed turns on and off very often, and really unnecessarily. It is not related to running any highly demanding process. It is enough to watch a video clip on youtube for 2 minutes and the fan turns on for few seconds, and then switches off because the laptop cools down enough. Then after another minute the temperature rises again so the fan is on again, and so on, back and fourth. This is quite annoying. This happens also when you just read something, just less often. And I know why this happens. Here is the explanation.
This is simply because of a very bad choice of Toshiba.* I used a tool that monitors the temperature of the cpu core (under Linux) and I saw that the fan is turned on already at 49 degrees Celsius (the core temperature, not the laptop case! The laptop is really cool outside when the cpu has 49 degrees inside!)*
How stupid is that! This laptop has i5-5200U installed so the maximum cpu core temperature is 100 degrees, so why not turning it on at 65 or 70?* On my Dell laptop, the fan is switched on at 65 degrees even though it is a lot less noisy than on Toshiba.
I use "balanced" mode for cooling, so the fan is less noisy than in "high performance" mode but it is still much more audible than on my Dell laptop.
The "power saving" mode is useless, because when the laptop reaches 48 deg the cpu frequency goes down to 400 MHz permanently (yes, because it will never cool off without the fan) and the laptop is useless at 400 MHz.
2/
The battery charging. The battery lifetime will be very bad on Tosbiba Z30. This is because the laptop charges the battery every time you plug in the power supply even if you used your laptop on battery for two minutes and it still shows 100%. Moreover this cannot be switch it off. I measured it simply by monitoring the current when switching the power cord with the laptop switched off so this is a fact not just a hypothesis.
On my old Dell laptop, the battery will never start charging until it goes below 90%. On my friend's Lenovo there is even an option in the Bios so he can decide to charge the battery only when it is below 70%.
It is a well-known fact, that the battery life is much shorter if you keep charging it when it is nearly full.
On my Dell laptop, I can even disable charging the battery completely using Fn+F2. So I can decide myself when to switch in on.
I do not expect Toshiba to have such a sophisticated tool, but at least they could disable charging the battery until it is discharged for example 80%.
Both problems can be easily fixed. The question is, do they care about their customers enough to do it? And how do you request such feature? Do the read the forum?

Noisy fans on iMac 24. Help

Noisy fans in iMac 24
Posted: Aug 2, 2008 1:47 AM
Reply Email
Hi Guys
I need your help on this. My 3 months old iMac (iMac 24inch 2.8GHZ Core 2 Duo Extreme) fans started making so much noise that is unbearable. They came on suddenly (you could see the wave of air) and even though I switched off the iMac for the 24 hours, when I turned it on, they noise is still on. The iMac works fine, but the noise is very very loud. The computer is in well ventilated room, so I dont know what is happening.
I bought it from apple.com and I dont want to go through all the drama of sending it for repair if there is a quick fix.
Thank you for your time.
Message was edited by: Radek

Hello Radek
You need to reset the iMac's SMC (System Management Controller) carefully follow the instructions in the link below!
http://support.apple.com/kb/HT1543
Dennis

IMac desk model just went black and dead. no fans, etc. won't turn on.

IMac desk model just went black and dead. no fans, etc. won't turn on. What is it?

Reset the SMC > http://support.apple.com/kb/HT3964 If it doesn't work, take your computer to an Apple Store or reseller

Would a noisy fan be covered by the warrenty? Can the fan be turned off?

My iMac's fan has become worryingly noisey, can it be turned off, if so is that a danger?
Will it be covered by the warranty, it still presumably works, just very very noisy.

Hi, if the computer is under warranty or has AppleCare so is the fan.
You would be best served to do the SMC reset first if that fails to cure the noisy fan call AppleHelp or visit the local Genius Bar or Apple Approved Service Agent..
http://macosx.com/forums/howto-faqs/302002-reset-system-management-controller-sm c.html
I would also make sure you have everything backed up..before any service work is carried out..L

Has a noisy fan

What has caused my iMac to develop a noisy fan. It runs at full speed now, this has just started.

this sounds like its overheating. when it does this can you tell what graphics processor is in operation, you can do that by either using gfxCardStatus (a app that sits in the menu bar that tells you which gpu is in operation) or by going into the more info section of About This Mac and under display it should say which processor is in use at that time, either the AMD discrete GPU or the Intel Integrated one

Noisy Fan

MBP, 15'', 2.2 GHz Intel Core 2 Duo, 2GB 667 MHz DDR2 SDRAM
Hello,
the right fan of my MBP is noisy. It wasn't always like that, I've been enjoying a quiet computer for 1.5 years -really-, even though this model is a warm computer... Other friends with the same model complain about their computers being warm.. hence the need of -at least- effective and reasonably quiet fans. The other day I had the impression of my MBP being warmer than before at the same circumstances,, I wonder if this is another surprise from this model
Anyhow,,, I don't think there's nothing wrong with the fan so far in terms of cooling, it's just noisy. At its peak, when watching movies or using photo Shop heavily, fans are working up to 5000rpp, that is always the case but I don't like it with an excessively noisy fan! ....my questions are:
How can I fix the noisy fan?
Should I change it?
I don't have apple care and my guaranty is expired
good luck!

To Apple Discussions!
See Article http://support.apple.com/kb/HT1411 Apple Portables: Resetting the System Management Controller (SMC)
The following may be helpful:
iFixit
TakeItApart
Make sure your MBP is getting proper ventilation when in use. Read the user manual that came w/your computer on the proper usage to prevent +over heating.+

Hot GPU diode and noisy fan - 3600rpm

After an hour my iMAC's GPU diode is running at 88° and the CPU fan is noisy at 3600rpm. I have taken it to an Apple certified reseller and they couldn't find anything wrong. Can anyone help suggest a reason why it is running hot and noisy?

Hello davemo73 I have the right the same problem, I have taken to an Apple certified support and they told me that is everything all right with my iMac, when I arrived in my home an surprise! the same issue... noisy fan and rpms too fast. Im really worried about, I dont wanna to change the logical board (60% of imac, too much expensive in my country, like a $1100,00 half cost of new machine.).
Can someone from Apple help us? PLS I'm going crazy!!!

G710 fan dust removal, noisy fan

Hi,
I have problems with my G710. I have Windows 7 Home Premium 64. I downloaded all drivers from Lenovo site, and i install Lenovo Energy Management from this topic because from lenovo support only Windows 8 drivers.
Energy Management have is nothing i find options "Dust Removal" and did not find. My fan(noisy fan) stays on constantly (temp idle 38/40/42) I bought it 2 months ago. Its problem, because my previous laptop was quietly.

Hi Px89,
Welcome to Lenovo Community!
I’m sorry to hear that the compatible LEM (Lenovo Energy Management) is not available for G710 Laptop. Hence, I would strongly suggest you to contact our Technical Support for further Assistance to get the details of the nearest Authorized Service Center to get the issue analyzed.
Click here to open a link where you can select the country and get the exact contact support number. I’m sure they will be a great help.
Do post us back for further queries.
Best Regards
Shiva Kumar
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

Noisy Fans Etc.

Similar Messages

Maybe you are looking for