IPod + sleep = loud fan?

Hoping to get a solution to this...I know the stock answer will involve my PCI-e USB card.
Yes, I have a PCI-e 5 port USB 2.0 card installed on my G5 Quad. How did you guess? It works like a charm, mostly.
The rub is, if I have an iPod connected, whether it's my 30GB video, my Nano, or my 2G Shuffle, and the computer wants to sleep, the screen goes dark, the fans crank up to full blast (LOUD) and the keyboard/mouse become unresponsive. The only way out is a reboot via the power button.
Any ideas?
Thanks!
Rob
G5 Quad Mac OS X (10.4.8)

I've learned to live with putting only certain devices on my Sunix USB 2 PCI-E card now, and the Mac sleeps as per normal again.
The 'engrish' response I got from Sunix was that they blamed the attached devices, not the lack of a power management firmware or driver for the Mac. Sigh...
The devices I have that sleep fine on a Sunix USB port are:
1. Logitech MX-1000 mouse
2. Yamaha USB speakers
3. Logitech USB headset.
The following were definitely 'no go', despite working normally on the Sunix card in other respects:
1. External DVD burner (a generic with an NEC mechanism in my case)
2. Canon MP760 multifunction device (printer/copier/scanner).
3. Any other mounted storage device (USB keys, iPods, digital cameras).

Similar Messages

Loud fans in sleep mode 20" G5 iMac Rev A, OS 10.4.11 New Info

This is more of a confirmation and heads up on a problem I encountered and solved to see if any of you have other ideas.
Several weeks ago I replaced the power supply bought from Mac Pro Online in my G5 iMac. When I put it to sleep I hadn't noticed anything odd at first because I'ld just walk away until one day I could here the fans going full blast. The screen was off as usual but the sleep mode light wasn't on while the fans were running. I waited about a minute until the fans returned to normal speed and the sleep mode light returned to its usual behavior only it seemed to be a lot brighter.
I awoke the iMac from sleep and all was fine. I put it back to sleep and the screen shut off as usual but the sleep mode lights wouldn't turn on. I waited about a minute and listened to make sure that the iMac hadn't shut down and then the fans started up full blast for about 30 seconds and then returned to normal and the sleep mode lights turned back on.
I shut the iMac down, disconnected all USB and ethernet cables and reset SMU using the unplug power cord, 10 second wait, replug holding down rear start button. Fixed it!
Swapping out USB devices I narrowed it down to a Kingston USB Multi-sized port memory care reader hub-part number: FCR-HS219/1. I tested and got repeated results described above reconnecting it and downloading some images and ejecting. Loud fans in sleep mode happened again.
Tried a MobileMate Memory Card Reader, downloaded images, ejected and no problems with sleep mode.
My question is what could've messed up the Kingston Card Reader? It was working fine before the power supply replacement.
Thanks,
Tim

There's no telling.
Only cause that came to mind is a lightning hit last week that sounded very close by where all it did was cause the lights in my home to blink. The computer didn't. However, this might have fried the Kingston card reader.
To give an idea of the resilience of the former power supply, about a year and half ago I had the back off with the iMac sitting upright on a towel on the table while I played a YouTube video to see if I could cool this thing down. Instead of cooling it I overheated it by blocking the vents to where suddenly the iMac just shutdown. I could detect a strong smell of melted plastic from the power supply.
Put the iMac back on its stand and restarted without a hitch and I've never had any problems until several weeks ago when it just started shutting down for no reason. It passed the LED light test as it still does now with the new power supply.
This is the first Mac out of three I've had since 1998 that allowed me to see odd behavior like this. I had to rely on my 2000 Pismo G3 PB to find a replacement PSU online. That thing never breaks.

Loud fan while sleeping

After putting iMac to sleep, front panel light does the usual fade in-out cycle 2-3 times, then goes dark and fan begins to run very loudly. Have tried resetting the SMU; didn't help. Any other ideas/suggestions?
(Have also had ocassional issues with not being able to insert disk into DVD drive, which I've been able to fix using fix posted elsewhere on this forum. This iMac is almost 5 -- is it just wearing out?)

Hi PR Girl,
There are quite a few different causes of "sleep" problems of this kind. Generally it means that the operating system has "crashed" when you have attempted to put it to sleep , leaving the computer still running, but in an unstable state without the normal thermal control mechanisms (hence the loud fans, which operate in a "fail safe" full blast manner when they can't get data from the relevant temperature sensors).
Probably the most usual cause of problems are external USB devices attached at the time - third party keyboards and mice, some brands / models of USB hub, other input or output devices , etc. These often "poll" the computer at regular intervals and if their drivers haven't been written right, or they don't comply with USB standards in other ways, then they can cause crashes of this type. Sometimes such things only become apparent after an OS upgrade, leading people to believe that it is the upgrade which is at fault, but generally you will find the third party manufacturer produces new driver software for the device concerned after a few weeks, so it is worth seeing if any relevant updates are available for such things.
Another common cause is third party "background" software that also attempts to access the computer regularly. I've seen sleep issues like this resulting from antiviral software, disk directory checkers, third party "system" and "finder" enhancers and the like. Often in such situations the console logs can provide you with some useful hints.
Cheers
Rod

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

New Loud Fan issue

I have an iMac G5 that had the motherboard replaced in September due to the "infamous" display problem.
Everything has been fine since then except recently, the fan slowly creeps up in loudness. I would say after about 45 minutes of light use (web surfing, say) the fan has become annoyingly loud. The only way to stop this is to either put the iMac to sleep or shut it down. And then if I start up immediately, it will be nice and quiet. But again, after about the 45 minutes, the fan has revved up to annoying loudness.
I did recently install OS X 10.4.3 and this all probably started around that time. I did not have this problem until recently. But I'm unsure if there's a direct relationship.
I have tried the few tips I've read on the boards about dealing with loud fans, but nothing seems to help. I have reset SMU, reset PRAM, reset NVRAM and also tried the MacFixit tip about changing the Energy Saving option from Automatic to something else (like highest or reduced); but none of these things have helped.
This is still under warranty and I could take this in, but I thought I'd try here first before actually hauling my machine in.
Does this sound like a fan problem, a power supply problem, an OS 10.4.3 problem? I have no idea. Any clues anyone? Thanks.

In a situation like this, H L, my first step would be to run "Activity Monitor" (from your utilities folder) , seelct the CPU tab and the "Activity Monitor" Window, and see if anything particular is hogging processor time.
You might also want to select the "memory" tab in the same application and see if any particular program is using a disproportionate amount of memory. (Safari , is one application that can actually turn into a "memory hog" when it has been running for a while.)
CPU "hogging" results in an increased load on the processor, causing increases in temperature and resulting fan activity.
Memory hogging can also increase processor load, but will eventually also cause an increase in HD temperature as more things have to be "paged" to and from the HD by the OS's virtual memory scheme. This can be a particular problem if your HD is getting fairly full (down to its last few gigabytes) as the drive's free space is likely to be badly fragmented by this time.
Cheers
Rod

Loud Fans - Constantly - WHY? How do I make it stop?

I have a Mac Pro (2x2.66GHz Dual-Core Intel Xeon 8GB 667MHz DDR2). Unless the computer is OFF or "Sleeping" the fans are so loud, even when I am not using it. What causes this and is there a way to make it so that the fans are not constantly working? I notice after upgrading to Lion that when the screen saver starts up that the fans go double-time, so I've disabled my screen saver. Any suggestions/fixes? Thanks...
p.s. - it has been this way ever since I can remember (os upgrades make no change - aside from it goes to sleep on the first try with Lion, whereas before it would take 2,3,4,5 attempts to finally get it to sleep).

Run Activity Monitor and see what is maxing out your CPU for me the following fix did the trick
Hi,
if you don't want to use the terminal - there is a easy way to solve the CITRIX / Lion Problem (if you don't want to use it anymore):
1. deinstall Citrix (also deaktivate the plugin in firefox)
2. open finder
3. go to directory /Library/LaunchDaemons
4. delete com.citrix.agadminservice.plist
5. restart
Now the process should be away -- > and we have to wait for a Citrix LION Version
Thanks to the apple support! They helped me with this issue!

I turned on my new imac for the first time and it is making a loud fan noise please help

I just got a new computer and when I turned it on for the first time it started making a loud fan noise. the noise seems like it is coming from the back speaker. and it does not make the noise on sleep mode.

Connect the iPad to a USB 2.0 port your computer with the cable and iTunes should launch and it will take you through the process step by step.
I assume that your computer meets the requirements and that you have the latest version of iTunes on your computer.

Loud fan like noise coming from 2012 Macbook Pro 15 inch but gets quieter when my palm is placed on the right side of the trackpad.

Hey,
I just got a Macbook Pro 15 inch. It is the preconfigered one with higher specs. I noticed that there is a loud fan like sound coming from my laptop. The strage part is, when I place my hands on it to typle, specifically the right hand. The sound gets cut to be about half as loud. I don't notice the sound when I am in class when there are people talking and the air is on in the room, but when I am in the library it is really loud. Does anyone know what this might be. All of my friends older Macbooks are dead silent.
This is not the buzzing or clicking sound that you can hear from a hard drive, it sounds almost like a computer fan, and it does it from the second the computer is turn on, to the second it is turned off or put to sleep.

33SuperSport33 wrote:
Hey,
I just got a Macbook Pro 15 inch.
You are still under warranty. Call Apple Care.
#1 - You have 14 days from the date of purchase to return your computer with no questions asked.
#2 - You have 90 days of FREE phone tech support.
#3 - You have the standard one year Apple warranty.
#4 - If you've purchased an AppleCare Protection Plan, your warranty last for 3 years. You can obtain AppleCare anytime up to the first year of the purchase of your computer.
Take FULL advantage of your warranty. Posting on a message board should be done as a last resort and if you are out of warranty or Apple Care has expired.

MacBook (1st Gen) Freezes and Loud Fan

Hello. I have been using my 1st-generation MacBook (1.83GHz Intel Core Duo processor, 2GB RAM) every day since I bought it back in July 2006. I replaced the hard drive (which I upgraded about 1.5 years ago; it was a 320GB 7200RPM drive) a little over a month ago when it failed. After replacing the hard drive with another 320GB 7200RPM drive, things continued to work fine for a while. However, I notice a few things. For one, sometimes when the fan turns on, I sometimes hear loud crackling noises (it's hard to describe; sometimes it feels like there is a turbine inside of my computer). Secondly, sometimes when the computer is sleeping, the fan is on full blast and I am unable to wake it up; I'm forced to power it off. Finally, I occasionally notice some random freezes. I could be using the computer, and then suddenly the mouse pointer won't move, pressing buttons on the keyboard do not result in any actions, and the display doesn't change. I haven't had this problem before.
I wonder what is wrong. Could it be that my computer is aging (it will be five years old in July), or is there some other underlying reason (it might give a clue to the hard disk failure that occurred last month).

Welcome to Apple Discussions...
I would start with the Apple Hardware Test (AHT)
http://support.apple.com/kb/HT1509
....see if it finds anything wrong....remember it needs to be run off install DVD1 that came with your MacBook...run the extended set of tests...
Since several symptoms seem to be power related an (SMC) reset might sort things out...
http://support.apple.com/kb/ht3964?locale=en_US
Also try running the MacBook without the battery....run it on the A/C adapter

I have a MacBook OS X 10.4.11 loud fan... Help :)

I have a MacBook OS X 10.4.11, it's 4 years old and the fan has recently started making a loud noise, even from the moment I turn it on when it's cold. If I shut it and it goes to sleep the fan will still be loud, the only way it stops is if I shut it down. I have around 48GB free on my hard drive. Any ideas?

Reset your SMC, which can sometimes take care of fan issues: http://support.apple.com/kb/ht3964

IMac 27" (Late 2012) Loud Fan and Overheating Issues, causing Hard Drive Failure

Hi all,
I'm having some serious overheating issues with my new iMac. Any help to help me solve this problem would be gladly appreciated since it's really beginning to bug me. Here's what's has happened:
I noticed in the first few hours of switching the iMac on that there was a short burst of very loud fan noise. This has been happening about once every two days since and every time I haven't been doing any heavy processing with the system. I've noticed that the main fan will spin, on average, at 1200rpm. Is that normal? The iMac is very well ventilated and sits right next to a window...
I have also boot camped the iMac with a copy of Windows 8 so I could run some fairly power-hungry games. I intentionally purchased a high end iMac (27" display, Intel Core i7 3.4GHz, Nvidia GeForce 680MX Graphics, 1TB Fusion drive) and expected the iMac to run games flawlessly. However, after a few days, I noticed that the CPU and GPU had shot up to a worrying 80°C whenever I ran power-hungry games, with a very loud hissing noise from the fan. After running games for about 10 minutes, the fan will stop hissing, causing the GPU and CPU to increase to 100°C. The iMac then fails and switches off unexpectedly without any warning. After analysing the Windows event logs, I received an event ID 41: The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
As this occurred about six times whilst I was testing my iMac's performance, I think my hard drive has now begun to fail - sometimes I will hear the hard drive make a click noise, about once every 5 seconds. Sometimes, the clicking noise causes OS X and Windows to run very slowly (even though minimal RAM is being used and nothing too intensive (Safari, Mail etc.) is being processed). Running Repair Disk and Repair Disk Permissions under OS X's recovery mode as well as a repair in chkdsk in Windows suggests that there were no problems with the hard drive. All I can do is wait a while for the clicking noise to stop, and then performance will increase. I have backed up everything externally.
I have also performed a reset of the SMC as well as the PRAM, which hasn't really helped.
Any help will be appreciated. I will gladly provide any extra logs etc. if they're needed.
Thanks so much,
Alex.

Alex Cummaudo wrote:
I've noticed that the main fan will spin, on average, at 1200rpm. Is that normal? The iMac is very well ventilated and sits right next to a window...
That's the default fan speed on iMacs, so there isn't any problem with this.
Alex Cummaudo wrote:
I have also boot camped the iMac with a copy of Windows 8 so I could run some fairly power-hungry games. I intentionally purchased a high end iMac (27" display, Intel Core i7 3.4GHz, Nvidia GeForce 680MX Graphics, 1TB Fusion drive) and expected the iMac to run games flawlessly. However, after a few days, I noticed that the CPU and GPU had shot up to a worrying 80°C whenever I ran power-hungry games, with a very loud hissing noise from the fan. After running games for about 10 minutes, the fan will stop hissing, causing the GPU and CPU to increase to 100°C. The iMac then fails and switches off unexpectedly without any warning. After analysing the Windows event logs, I received an event ID 41: The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
You must know that Boot Camp isn't compatible with Windows 8 and that Apple hasn't released drivers for Windows 8, so it can fail. Install Windows 7 inmediately until Apple launches updated drivers.
As it looks like the hard disk is damaged, I would take the Mac to an Apple Store. It's in warranty, so it should be repaired for free or you should receive a new one

Mac Mini - Flashing Folder Icon / No boot / Loud fans

I recently got my Mac Mini back after 8 months of it being 'elsewhere' (someone had it, tried to gain access, failed because I have filevault).
When I first got it back yesterday I turned it on, booted and then logged in, noticed no sound, and system was saying there was no sound card. The computer wasn't lagging or freezing whatsoever, so I reset it and still no sound.
I open it up and what do you know, someones opened it (I assume to get to the HDD) and had unclipped the sound card ribbon. Reseated that and put it back together, turn it on and finally a chime, but then nothing, White screen, and fans turn on full blast. I reset it, same thing. Reset it about 10 times, only thing I noticed was half the time my mouse cursor would show and let me move the cursor around.
So I take it apart again, check all connections, restart, same symptoms.
Pull it apart again and try installing 1 RAM chip at a time, same symptoms.
I tried booting it with resetting PRAM, NVRAM, I tried starting holding option, pressing c, everything, and nothing happens! Same symptoms. I tried holding down power for 10 seconds, hear a long beep, then chime, same symptoms!
So I take it apart again, take out hard drive, check connections (all ok), put it back in, same symptoms.
Anyway I got angry so i turned it on and left it doing it's White screen business. Come back 45 minutes later, flashing folder icon with '?'
I reboot, wait 15 again, same folder icon, loud fan, nothing else.
This doesn't make sense, HDD was fine 5 minutes before, no noises at all, no lag, no errors. I didn't touch the hard drive previously to the problem, and now nothing is helping. I've had the hard drive replaced 2 years ago due to near failure, but saved all data by cloning the disk, the HDD isn't old!
I just bought an external HDD enclosure, should arrive soon, and a new HDD, issue is this disk is filevaulted, I'm scared my data is going to be lost for good.
What can I do? I've lost my OS X disc, but judging by the computer being unresponsive to other commands at boot I doubt it would boot a CD anyway.
Please help.
Thanks

Whew, what a bad ride.
Does it also have Firmware password protection in Mac OS X ...
http://support.apple.com/kb/HT1352
It would block usage of all the startup keys, like C, N, T, D, CMD+s, CMD+Option+p+r, CMD +v, Option, and Shift, as well as booting from anything but the Hard Drive.
Force Removing Password Protection
1) Add or remove DIMMs to change the total amount of RAM in the computer.
2) Then, the PRAM must be reset 3 times. (Command + Option + P + R).
http://www.securemac.com/openfirmwarepasswordprotection.php
Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).
Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
http://docs.info.apple.com/article.html?artnum=106214

Loud fan and metal cracking noise on Macbook Pro 13''?

I have the late 2011 model Macbook Pro 13''. The problem started out with just a loud fan, the computer started to operate really slowly and just yesterday I started to hear loud metal rattling on the inside. At first it was just when I turned the computer but now it will do it periodically while it's sitting completely still while running. It also is heating up a lot. I've already gone to Activity Monitor and killed all activities using too much CPU and the fan doesn't stop.

I have the same model and accidentally dropped mine off my bed today.
I looked around for a while to see what the noise could have been and found this
http://support.apple.com/kb/HT1935?viewlocale=en_US which seems to explain the problem, even if you haven't dropped yours. My fan has also been loud lately but it seems unrelated.
I'd suggest you try turning off the SMS and then back on.
I did that with mine and it hasn't made any more noise since. If that doesn't help, it's never a bad idea to go to the apple store to have it looked at. Especially for how expensive the computer is.

My 2008 Macbook Pro makes a loud fan noise.

Hello -
I bought my 15" macbook pro back in October 2008. I was very happy with my purchase due to the machine's performance. But over the past year I have noticed an increase in the fan noise. It almost sounds like it's hitting against something at a very high speed, hense this irregular fan noise. The noise also increases drastically when I am working on Photoshop or InDesign. I also partitioned my hard-drive to hold windows so I can work on AutoCad.....noise increases also as I work on my machine.
Why is this happening? Could this loud fan noise damage any internal component to the machine? Should I bring it in to Apple immediately?
Thank you!

Some of the applications that you mention are somewhat CPU intensive which creates heat and results in fan speed increase and hence additional noise (to state the obvious). However if you are experiencing excessive noise when CPU loads are modest it could be that your fans are failing as all mechanical devices eventually will or you may have 'schmutz' inside that is the cause of the unwanted noise.
I suggest you open the MBP and see if there is any dust in the fans that may very well be affecting their performance. After 4 years, this is not an uncommon situation and it could be the solution to the problem.
If not, then you may consider getting replacements from iFixit or Powerbook Medic and replace them your self. It is not rocket science in this instance. If you suffer from chronic fingerfumbilitis, then have the Apple store do it for you.
Ciao.

My macbook pro i7 (2011 version) has a loud fan and high cpu % when I have Skype on or when I am on Safari. Help please!

My macbook pro i7 (2011 version) has a loud fan and a high cpu % when I have Skype on or when I am on Safari. My laptop would sometimes freeze for a while and it is usually hot. Has anyone else encounter this problem and know how to fix it? Thanks!

Skype is a very resource intensive activity...it has been reported on here users are seeing cpu temperatures on the order of 80-85 °C, within the limits of the cpu, but still hot to the touch.
Make sure nothing else is running so you keep the thermal load down.

IPod + sleep = loud fan?

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