RE: Noisy fan on start up of iMac this morning.

My iMac is always extremely quiet. I turned it on this morning and the fan is obviously noisy. Is there a simple fix or might it require a trip to the shop? Thank God I've learned to alway purchase an extended warranty on my Macs...
Thanks for any help or advice you can provide.
Chris

I'm glad that you were able to find the solution on you own.
Your welcome!

Similar Messages

My G RAID thunderbolt drive mounted just fine onto my iMac this morning. And now it will not mount despite my various efforts. I don't know what else to do. Can someone help me with this?

My G RAID thunderbolt drive mounted just fine onto my iMac this morning. I copied some files from another drive onto the RAID drive, ejected it, and worked on another project for a few hours. When I went to mount the RAID drive again so I could work on the project associated with the drive (I'm a freelance video editor) it would not mount. I've tried everything. It boots up perfectly fine, the drive seems to have no hardware problems. It shows up on Disk Utility and in System Information but is listed as not mounted. I've verified it on Disk Utility and it tells me everything with the drive is fine. I've tried all the various restarting my iMac, ejecting and reconnecting the drive, shutting down the whole system and starting it back up, relaunching Finder, and nothing works. Starting to panic because this is a client's drive, I have no idea what the issue is, it worked perfectly fine only hours ago, nothing happened to it in the meantime, and I fear continuously connecting and ejecting it because I don't know what the state is with the data and if this is only going to further aggravate the problem. I've been up and down Apple and g-raid forums and can't get a straight answer anywhere. I need to know that the data is safe, the drive is undamaged, and how to get it to mount on my iMac. Can anyone out there help me with this??

welcome to the BT community forum where customers help customers and only BT employees are the forum mods
in order for the forum members to help please can you post the adsl stats from your router you may need to 'show detail' to get all stats (if hub enter 192.168.1.254 in your browser and navigate to adsl or if HH4/5 then go to troubleshooting then logs and you are looking for 2 line together when hub last connected to internet and they will show your connection speed and noise margin or if netgear enter 192.168.0.1). Then run btspeedtester (MAC users may have problems). when first test completes then run diagnostic test and post the results ( do not reset the router).
Have you tried the quiet line test? - dial 17070 option 2 - should hear nothing - best done with a corded phone. if cordless phone you may hear a 'dull hum' which is normal
Someone may then be able to offer help/assistance/suggestions to your problem
If you like a post, or want to say thanks for a helpful answer, please click on the Ratings star on the left-hand side of the post.
If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’.

TS1717 Started a software update this morning which didn't work. Now Itunes will not open at all. I get the following message."The program can't state becasue MSVCR80.dll is missing from your computer."

Started a Itunes software update this morning which didn't work. Now Itunes will not open at all. I get the following message."The program can't state becasue MSVCR80.dll is missing from your computer."

There are a couple of options that I know of to fix the issue.
One is listed in this thread - https://discussions.apple.com/message/24606478#24606478 - and involves uninstalling iTunes and related components and then re-installing iTunes. You will need to read the instructions in the thread to see the correct uninstall order.
Second option is use System Restore to set your system back to a date prior to the iTunes update. I did this before finding the thread mentioned above.
Not sure exactly what the problem is but I know, after a search, that MSVCR80.dll was indeed already installed on my computer.
Message was edited by: karivers

HT4623 I installed iOS 7 last night and when I started the i-pad this morning, it ask for a password. I did not set a password and now my i-Pad is disabled and I can't use it, can you help?

I up loaded iOS7 last night and when I opened my iPad this morning, I was ask for a password. The problem is, I did not set a password and when I used the 4 digits I would normally use, the i-Pad disabled and I cannot get it open. Can anyone help?

iOS: Device disabled after entering wrong passcode
http://support.apple.com/kb/ht1212
How can I unlock my iPad if I forgot the passcode?
http://tinyurl.com/7ndy8tb
How to Reset a Forgotten Password for an iOS Device
http://www.wikihow.com/Reset-a-Forgotten-Password-for-an-iOS-Device
Using iPhone/iPad Recovery Mode
http://ipod.about.com/od/iphonetroubleshooting/a/Iphone-Recovery-Mode.htm
Saw this solution on another post about an iPad in a school enviroment. Might work on your iPad so you won't lose everything.
~~~~~~~~~~~~~
‘iPad is disabled’ fix without resetting using iTunes
Today I met my match with an iPad that had a passcode entered too many times, resulting in it displaying the message ‘iPad is disabled – Connect to iTunes’. This was a student iPad and since they use Notability for most of their work there was a chance that her files were not all backed up to the cloud. I really wanted to just re-activate the iPad instead of totally resetting it back to our default image.
I reached out to my PLN on Twitter and had some help from a few people through retweets and a couple of clarification tweets. I love that so many are willing to help out so quickly. Through this I also learned that I look like Lt. Riker from Star Trek (thanks @FillineMachine).
Through some trial and error (and a little sheer luck), I was able to reactivate the iPad without loosing any data. Note, this will only work on the computer it last synced with. Here’s how:
1. Configurator is useless in reactivating a locked iPad. You will only be able to completely reformat the iPad using Configurator. If that’s ok with you, go for it – otherwise don’t waste your time trying to figure it out.
2. Open iTunes with the iPad disconnected.
3. Connect the iPad to the computer and wait for it to show up in the devices section in iTunes.
4. Click on the iPad name when it appears and you will be given the option to restore a backup or setup as a new iPad (since it is locked).
5. Click ‘Setup as new iPad’ and then click restore.
6. The iPad will start backing up before it does the full restore and sync. CANCEL THE BACKUP IMMEDIATELY. You do this by clicking the small x in the status window in iTunes.
7. When the backup cancels, it immediately starts syncing – cancel this as well using the same small x in the iTunes status window.
8. The first stage in the restore process unlocks the iPad, you are basically just cancelling out the restore process as soon as it reactivates the iPad.
If done correctly, you will experience no data loss and the result will be a reactivated iPad. I have now tried this with about 5 iPads that were locked identically by students and each time it worked like a charm.
~~~~~~~~~~~~~
Try it and good luck. You have nothing more to lose if it doesn't work for you.
 Cheers, Tom

IPhoto stopped working on my iMac this morning after downloading some pictures from an SD card ( from canon EOS 1000D)

It worked perfect for 40000 photos till yet. I started the iMac again several times but no way. The iPhoto starts but then doesn't proceed.

Maybe this will help
http://support.apple.com/kb/HT2638

Noisy fan stopped working

Ok i just had a slightly more angry post rejected by "the central scrutinizer"
But i've calmed down now....
The main issue was a noisy fan that has stopped working altogether this week. The computer can't be run without being placed on an ice pack or it overheats and shuts down.
What are the chances if any of getting the fans to work again?
The computer (a macbook 2ghz, mid 2006) is way out of warranty so i'd like some advice on fixing it myself.
A while ago it suffered a click of death Hard drive failure and i re-installed the original drive (it had been upgraded to 120gb by the engineers at Microlink UK)
Could it need a firmware upgrade to run the fans properly?

I fixed it myself today after finding excellent instructions at ifixit.com! The instructions were very clear and easy to follow with large images. Thanks for pointing me there.
I stripped the MacBook down to the fan and found it full of dust and fluff around the exit grille. More importantly, the fan mounting was basically distorted downwards so that the blades were against the floor and stuck there! A quick glance along the keyboard showed how bent it was so i did some careful "panel Beating" to get it back into shape.
I think the plastic had warped over time and this put downward pressure on all the components underneath, the extra heating of the blocked fans only made it worse. The keyboard is backed by a thin metal sheet so it would appear this had an effect similar to a bi-metallic strip.
Luckily the keyboard can be re-shaped quite easily. I'd advise care if doing this yourself as the plastic "rivets" can pop out with too much bending.
Now i've assembled the MacBook again it's running the fan (there is only 1) so quietly that it's barely audible at 4000 rpm and it's much more efficient.
I'm surprised it's not burnt out actually.

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

Late 2009 21.5" iMac has a chronically noisy fan.

After experiencing slowness on my iMac when browsing the web, checking email, and opening terminal prompts, I decided to upgrade from 4gb of RAM to 8gb. This has made the slowness less of a problem, but I am still experiencing other erratic behaviors. For no apparant reason, the fan sometimes starts running very noisily, even during computer sleep and sometimes even during the entire duration of the reboot process. Here is the EtreCheck diagnostic dump for my iMac:
Hardware Information:
    iMac (21.5-inch, Late 2009)
    iMac - model: iMac10,1
    1 3.06 GHz Intel Core 2 Duo CPU: 2 cores
    8 GB RAM
Video Information:
    ATI Radeon HD 4670 - VRAM: 256 MB
System Software:
    OS X 10.9.2 (13C64) - Uptime: 8 days 0:14:7
Disk Information:
    Hitachi HDE721010SLA330 disk0 : (1 TB)
        EFI (disk0s1) <not mounted>: 209.7 MB
        Macintosh HD (disk0s2) / [Startup]: 999.35 GB (71.99 GB free)
        Recovery HD (disk0s3) <not mounted>: 650 MB
    PIONEER DVD-RW DVRTS09
USB Information:
    Western Digital My Book 1130 2 TB
        VM (disk2s1) /Volumes/VM: 2 TB (757.3 GB free)
    Apple Inc. Built-in iSight
    Apple Internal Memory Card Reader
    Apple Computer, Inc. IR Receiver
    Apple Inc. BRCM2046 Hub
        Apple Inc. Bluetooth USB Host Controller
FireWire Information:
    WD My Book 111D 800mbit - 800mbit max
        disk1s1 (disk1s1) <not mounted>: 32 KB
        BigD (disk1s3) /Volumes/BigD: 2 TB (693.65 GB free)
Thunderbolt Information:
Configuration files:
    /etc/hosts - Count: 3
Kernel Extensions:
    org.virtualbox.kext.VBoxDrv    (4.2.14)
    org.virtualbox.kext.VBoxUSB    (4.2.14)
Startup Items:
    HP Trap Monitor: Path: /Library/StartupItems/HP Trap Monitor
    rEFItBlesser: Path: /Library/StartupItems/rEFItBlesser
    VirtualBox: Path: /Library/StartupItems/VirtualBox
Launch Daemons:
    [System]    com.adobe.fpsaud.plist 3rd-Party support link
    [System]    com.github.GitHub.GHInstallCLI.plist 3rd-Party support link
    [System]    com.google.keystone.daemon.plist 3rd-Party support link
    [System]    com.oracle.java.Helper-Tool.plist 3rd-Party support link
    [System]    com.ubuntu.one.fsevents.plist 3rd-Party support link
    [System]    org.freedesktop.dbus-system.plist 3rd-Party support link
    [System]    org.macosforge.xquartz.privileged_startx.plist 3rd-Party support link
    [System]    org.macports.rsyncd.plist 3rd-Party support link
Launch Agents:
    [System]    com.google.keystone.agent.plist 3rd-Party support link
    [System]    com.hp.help.tocgenerator.plist 3rd-Party support link
    [System]    com.oracle.java.Java-Updater.plist 3rd-Party support link
    [System]    com.wacom.pentablet.plist 3rd-Party support link
    [System]    org.freedesktop.dbus-session.plist 3rd-Party support link
    [System]    org.macosforge.xquartz.startx.plist 3rd-Party support link
User Launch Agents:
    [not loaded]    com.google.Chrome.framework.plist 3rd-Party support link
    [not loaded]    com.valvesoftware.steamclean.plist 3rd-Party support link
    [not loaded]    org.virtualbox.vboxwebsrv.plist 3rd-Party support link
User Login Items:
    Flux
    Quicksilver
    iTunesHelper
    Air Mouse Server
    Launch_IKCP
    usb16
    Music Manager
    SpeechSynthesisServer
    VMware Fusion Start Menu
    Android File Transfer Agent
Internet Plug-ins:
    FlashPlayer-10.6: Version: 12.0.0.77 - SDK 10.6 3rd-Party support link
    Default Browser: Version: 537 - SDK 10.9
    Flash Player: Version: 12.0.0.77 - SDK 10.6 3rd-Party support link
    QuickTime Plugin: Version: 7.7.3
    o1dbrowserplugin: Version: 5.1.7.17873 3rd-Party support link
    WacomNetscape: Version: 2.1.0-1 - SDK 10.8 3rd-Party support link
    npgtpo3dautoplugin: Version: 0.1.44.29 - SDK 10.5 3rd-Party support link
    googletalkbrowserplugin: Version: 5.1.7.17873 3rd-Party support link
    WacomTabletPlugin: Version: WacomTabletPlugin 2.1.0.2 3rd-Party support link
    JavaAppletPlugin: Version: Java 7 Update 51 3rd-Party support link
Audio Plug-ins:
    BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
    AirPlay: Version: 2.0 - SDK 10.9
    AppleAVBAudio: Version: 203.2 - SDK 10.9
    iSightAudio: Version: 7.7.3 - SDK 10.9
iTunes Plug-ins:
    Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
User Internet Plug-ins:
    RealPlayer Plugin: Version: Unknown
    Google Earth Web Plug-in: Version: 7.1 3rd-Party support link
3rd Party Preference Panes:
    Flash Player 3rd-Party support link
    Java 3rd-Party support link
    MusicManager 3rd-Party support link
    TeXDistPrefPane 3rd-Party support link
    PenTablet 3rd-Party support link
    DWXBoxHIDPrefsPane 3rd-Party support link
Old Applications:
    None
Time Machine:
    Skip System Files: NO
    Auto backup: YES
    Volumes being backed up:
        Macintosh HD: Disk size: 930.71 GB Disk used: 863.67 GB
    Destinations:
        BigD [Local] (Last used)
        Total size: 2
        Total number of backups: 50
        Oldest backup: 2013-11-02 14:16:11 +0000
        Last backup: 2014-03-13 22:31:11 +0000
        Size of backup disk: Too small
            Backup size 2 < (Disk used 863.67 GB X 3)
    Time Machine details may not be accurate.
    All volumes being backed up may not be listed.
Top Processes by CPU:
         5%    DashboardClient
         1%    WindowServer
         1%    EtreCheck
         0%    firefox
         0%    App Store
Top Processes by Memory:
    557 MB    firefox
    254 MB    Finder
    254 MB    com.apple.IconServicesAgent
    197 MB    iTunes
    139 MB    mds_stores
Virtual Memory Information:
    1.72 GB    Free RAM
    3.37 GB    Active RAM
    2.04 GB    Inactive RAM
    792 MB    Wired RAM
    6.11 GB    Page-ins
    2.58 GB    Page-outs
Can anyone help me with this? Thanks.
P.S.
Prior to the RAM upgrade, I was experiencing several other issues, which I have not reproduced but cannot verify that they are fixed.
Frequent:
Mail.app slow opening, closing; messages opened in large batches do not get marked as read
Terminal.app experiences noticeable lag when opening (it sometimes takes between 5 and 20 seconds between launching the application and getting an active prompt)
Processes lag or become unresponsive, even when not many applications are running
Browswers frequently become unresponsive, pinwheel, or lag considerably, frequently requiring a force-quit.
Mouse Pinwheels Frequently
Intermittent
Computer   generates loudly audible fan noises, persists even when computer is   briefly powered off during a reboot; does not always stop after   rebooting
Finder often becomes unresponsive
Rare (one time only)
Machine   powered on in "Safe Boot" mode for no apparant reason; red text reading "Safe Boot" in menu bar of login screen; background picture slideshow mode became very glitchy, phased and flashed in horizontal grey bars before loading next background image
Chronic (Consistently Happens)
Machine   will not boot if plugged into normal powerpoint after being unplugged   from that power-point; cable must be plugged into a different A/C power   outlet for machine to boot, at which point it can be switched off again, moved back to the original dedicated outlet, and booted again. This has never failed to happen, and is mind-boggling.

Could be a bad memory problem or an issue with Parallels. Try booting into Safe Mode and see if the panics cease.

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.

IMac 27" i5 noisy fans?

Hello all
I just received a new 2.8 quad core imac, 27" in exchange for my faulty 24" 2.8ghz intel core 2 duo (not bad hey!?) from the applestore in Norwich. Its great although i feel the fans are noisy. Its constant loud whirring, like one of the fan blades is clipping on something. It doesnt sound like a HDD noise and its from the moment it turns on to the moment i turn it off, always constant, never differs.
I installed smc and get these readings -
OD - 1000rpm
HDD - 1099rpm
CPU - 939rpm
These, i think, are pretty normal. Any ideas? Tried an SMC reset and resetting the PRAM to no avail. It sounds like the fan is central, possibly to the left as when i push against the apple logo on the front of the imac it makes it louder.
Any ideas are great, thanks

I now believe it could be the HDD as when i put the computer to sleep and rest the HDD, it stops, and its a constant sound. It sounds similar to cicada bugs in the rainforest/jungle, like a constant high pitched whine. I used smc fan control to adjust the fan speeds and this didnt affect the noise at all, which makes me suspect the HDD.
I tried resetting the PRAM again last night and the noise went away. Great. I turned it on this morning and its back. So, the noise can go away, however it seems like it prefers to stay!
Any ideas?

My new 3 month old imac 27 with 10.6.8 snow is giving a **** of noise from the fan. suddently starting after today starting up. and the volume buttoms and screen lights up and down not working any more.. any one who can help here???

my new 3 month old imac 27 with 10.6.8 snow is giving a **** of noise from the fan. suddently starting after today starting up. and the volume buttoms and screen lights up and down not working any more.. any one who can help here???

Try an SMC Reset. (System Management Controller)
Shutdown>unplug from power for ten minutes>press and hold in the power button for ten seconds>startup again.
Also try a PRAM Reset. (Parameter RAM)
Shutdown. At the bootup chime, hold down CMD-Option-P-R together, wait for two more chimes, total three, then let go of all keys to finish booting,
If this doesn't do it, run the Hardware Test in Extended
http://support.apple.com/kb/ht1509

Noisy fan running on imac,

the fan constantly runs on my imac and is quite loud & very annoying - can this be fixed???

SMC Reset

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

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.

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.

RE: Noisy fan on start up of iMac this morning.

Similar Messages

Maybe you are looking for