Mac Mini Fans run when computer is off

I have a 2009 Mac Mini that has a system fan that runs full blast as soon as the power supply is plugged in(unit is off). When I turn it on the fan stays full blast. I have tried resetting the SMC and PRAM. I'm assuming a component failure on the logic board but I figured I would check with the good people here to see if I'm missing anything.
Thanks in advance.

Do I have to do the AHT from the install disc? I did do an AHT from the HDD
Likely that means you're no longer on 10.6.8 as it shows.
Yep, MOT is Motor, but I think can be sensor for the motor 7458 is the RPM I believe, but not sure it can go that high in reality.

Similar Messages

Intel Mac Mini fans run full blast even when off

Hi All,
I have gone through the forums and haven't found an answer to this one. I have an Intel Mac Mini running the latest updated Tiger that I use solely for a media center.
About a week ago, the box started running fans full blast, regardless of whether it was actually turned on or not. As soon as it is plugged in the fans blast.
Otherwise, it seems healthy, and boots normally.
The steps I have taken so far include resetting permissions, verifying the disk, and resetting the SMC in the proscribed fashion.
After this occurred, I downloaded and installed smcFanControl from Lifehacker.com. This reported fan speed of zero and Temperature of zero.
Next I opened the case and insured the fan/HD cable next to the lttle battery was securely fastened as this had been reported to cause this symptom.
What's next? The device is out of warranty and honestly, I don't want to spend any money if I can help it.
Should I take it apart further and see if the other end of the fan/HD cable has somehow worked loose?
Can anyone think of another cause besides a loose cable?
What if I completely disabled the fan? The hardest thing I ever ask it to do is run iTunes and VLC.
Any advice is greatly appreciated.
Dave

I have refurbished two G5s with LCS and screaming fans (this was avery common problem with G5 LCS macs), the red light on the motherboard could mean the CPUs need to be re-seated. This red LED light appeared on my mac after I had removed the CPUs to add new thermal paste.
If you have done all the necessary basics with no sucess here are a few things to try next.
1 - Coolant
As BDAqua mentioned above, coolant evaporates and often leaks at the 'O' rings, to check this you will need to remove the CPUs from the LCS and check for crystalisation (white rice). If you have leakage, it will be time to drain the block, add new coolant and 'O' rings. This is tricky to do but there is lots of info here and on other sites to help you.
2 - Thermal paste
Replace the thermal paste with Artic MX4.
Try the above and let is know how ou get on.

Mac Mini fan running loudly after Safari upgrade

Mac Mini 2GHz is around 2 months old. All been fine until yesterday. When running Safari (it seems) and not necessarily heavy usage fan starts runningvery loudly. In the previous 2 months NEVER heard the fan or at least it's been very quiet, so am quite concerned. It appears that this has coincided with updating to the very latest Safari release 3.1.1.
Anyone else having similar problem and/or advice?
thanks
D

The new Safari release supposedly has some issues with Flash media files and with Windows Media files -- and will require updates of the helper programs that display those formats.
Does the fan run loudly when you visit sites with such files? Or does it also run loudly if all you visit is sites with no video files on them?

Mac mini shut down when i power off my samsumg led smart tv

I'm new to mac mini. In fact Mac at all. I use my samsumg led smart tv as display using hdmi port # 4 in my tv. I have also other devices connect to my tv like my apple tv in hdmi also. I don't know why but when i power off my tv, my mac mini stop to work (like a shut down) and when i power on again my tv i must press the power button on my mac mini in order to use it again, it is no longer list in my listed sources on my tv. My apple tv don't have the same behavior, when my tv is back, I just have to select it again in my source list and it will be back there. Is there something I should change or know in order to have my mac mini always available. I'd like to be able to connect to it from other places using vnc, but right now it's always shutting down and even if I try to power on it after my tv close, it wont when my tv is power off. Somebody can help me? Thank you!

Hi Linda,
Unplugging it from AC power will drain the PRAM Battery in short order, thereby losing setting, like Monitor resolution.
You can test the Pram Battery by disconnecting from the Internet so Date/Time doesn't update before you see it, shutdown, unplug AC for a bit, startup & check Time.
In Sys Pefs>Displays, can you set the resolution?

Mac Mini Fan Running Very Loud

Hello,
The other day whilst play Rome: Total War I noticed the fan on my Mac Mini (bought new in 2012 with fusion drive, quad i7 2.3GHz, 8GB Ram) was blowing a gale. I downloaded MagicanPaster to monitor the Mac Mini and this occurred every time I played RTW, or when I exported a file on iMovie. I know a bit about computers, but not anything about technical stuff so wanted to check that my Mac Mini was behaving within "normal" parameters. The MagicanPaster reported the following whilst exporting an iMovie file:
CPU
- 15% system usage, 58% user usage
- 260 Processes
- 1632 Threads
RAM
- 300MB Free
- 2.3GB Inactive
- 2.5GB Active
- 1.2GB Wired
Hard Drive
- Read 75MB/s
- Write 656 KB/s
Temperatures
- CPU 97oC
- Disk 32oC
The Temperature of the CPU is my biggest concern, but like I said I don't know if that's just what happens when using iMovie.
Thanks for any help,
Ashley

woodturner wrote:
Joe Bailey wrote:
I have the same Mac mini as you do but with 16GB of RAM. Normally in a room with an ambient air temp of 41℃ the average temperature of the four CPUs is around 55℃.
You actually keep your room 'normally' at 105 degrees fahrenheit, the equivlent of 41℃ ?
No the room temperature is more like 74℉ but the ambient air sensor in the Mac mini "sees" a temperature of 41℃ in its immediate vicinity which is inside the Mac mini enclosure. 105℉ is more like the Outside Air Temperature during the summer here in Texas.

HELP!! Mac Mini Fan Runs Full Speed

I have a Mini, 2.0 Ghz Core 2 Duo, (part #MB139LL/A), while working in Photoshop CS4 this morning, the fan for no reason shot up to full speed, will not stop or slow down. I opened the case, the fan controller connection is in place, the wires are not damaged. I followed reset SMC instructions, fan blasts back on as soon as power line is inserted. Computer overall seems to be running unusually slow, so slow that I'm in this support forum through a PC.
I have 2 gigs RAM, system profiler says both DIMMS are fine.
I tried downloading most recent SMC update, install says the computer doesn't need it.
Suggestions?

Tried the SMC reset twice to no avail, using the 'hold button in' as described by another poster here. So I tried it again, twice, without holding in the button. No change.
Considering I'm in the middle of a catalog project and do not have the luxury of waiting on repair - replacement of motherboard, I went to Best Buy last eve and bought a new iMac 24". Now I have the task of re-install and xfer of all apps.
Data and projects have always been stored on an external drive and backed up with Time Machine to another external drive, so continuing the project is a simple matter of plugging them in to the iMac. A horrifying experience with a PC taught me that lesson.
The mini will go to the hospital for required surgery, will probably end up on the wife's desk, since she hates the Vista PC I gave her. I hope she likes the Mini, she sure won't get that new iMac anytime soon.
In closing, I am amazed what those tiny Mini's can do. Lotsa horsepower in that tiny box, it was all I could afford at the time. Always have had problems with PC's, never with a Mac till now. This one only had 18 months on it, but it payed for itself countless times over.
Thanks again to all who responded...
Chris

Mac Mini fans wont stop (on or off)

This suddenly happened while I was using it, I then turned it off for about 45 minuets and still the fans kept going. It sounds like there going at full speed all the time. Also when I check the Activity monitor I have only FireFox going at .7%. I never opened the Mac for any repairs etc.. Also the air coming from the back is cool air. The only way I get them to stop is when I directly unplug the Mac itself. Is this something I can fix, or will I have to take it into an apple store?
Late 2009 Model ($599)
Mac OS X 10.6.4

Rieser wrote:
Is there anyway to decrease the speed
[smcFancontrol|http://www.eidac.de/?p=180] could help with that, but you shouldn't need to resort to such tools.
or what else can I do?
have you run +verify disk+ and +permissions repair+ sessions using disk utility ?
have you tried _*resetting your Mac's PRAM and NVRAM*_ ?
have you tried running _*Apple Hardware Test*_ to check for hardware problems ?
have you tried booting into _*safe mode*_, then rebooting normally ?
if none of the above helps, i would think it's time to call Apple for an appointment ...
good luck !
JGG

Mac Mini Fan Runs Full Speed

I opened the mini case and noticed the fan sensor had come unplugged. I plugged back in. Problem solved.

Did it come unplugged from the factory? Or was this due to an installation you or an authorized provider did?

Mac Mini Fan Still Running After Turning Off Computer

I turned off my computer (Mac Mini) and, after the screen had gone black and the light turned off, I still heard the fan running. I turned off the monitor and my speakers, but it was neither of them, it was the mini. It also wouldn't let me turn it on again. I tried, but the light wouldn't come on. So I unplugged the power cable and plugged it back in and it turned on. Any reason why this happened and should I be worried?
Dean

This is what i get for the time that this happened in the System.log:
Oct 27 22:00:17 localhost kernel[0]: Jettisoning kernel linker.
Oct 27 22:00:17 localhost kernel[0]: Resetting IOCatalogue.
Oct 27 22:00:17 localhost kernel[0]: GFX0: family specific matching fails
Oct 27 22:00:17 localhost kernel[0]: display: family specific matching fails
Oct 27 22:00:17 localhost kernel[0]: Matching service count = 2
Oct 27 22:00:17 localhost kernel[0]: Matching service count = 4
Oct 27 22:00:17 localhost kernel[0]: Matching service count = 4
Oct 27 22:00:17 localhost kernel[0]: Matching service count = 4
Oct 27 22:00:17 localhost kernel[0]: Matching service count = 4
Oct 27 22:00:17 localhost kernel[0]: Matching service count = 4
Oct 27 22:00:17 localhost kernel[0]: GFX0: family specific matching fails
Oct 27 22:00:17 localhost kernel[0]: display: family specific matching fails
Oct 27 22:00:17 localhost kernel[0]: Previous Shutdown Cause: 0
Oct 27 22:00:17 localhost kernel[0]: mac 10.3 phy 6.1 radio 10.2
Oct 27 22:00:17 localhost kernel[0]: IPv6 packet filtering initialized, default to accept, logging disabled
Oct 27 22:00:17 localhost mDNSResponder-108.2 (Aug 25 2006 14: 50:48)[36]: starting
Oct 27 22:00:17 localhost memberd[43]: memberd starting up
Oct 27 22:00:20 localhost DirectoryService[47]: Launched version 2.1 (v353.2)
Oct 27 22:00:22 localhost lookupd[46]: lookupd (version 369.6) starting - Fri Oct 27 22:00:22 2006
Oct 27 22:00:23 localhost diskarbitrationd[42]: disk0s2 hfs C86F1C74-578D-3C00-9929-9F23FA07345E Mac Mini /
Oct 27 22:00:23 localhost kernel[0]: yukonosx: Ethernet address 00:16:cb:97:b8:af
Oct 27 22:00:23 localhost kernel[0]: AirPort_Athr5424: Ethernet address 00:17:f2:46:d2:7b
Oct 27 22:00:23 localhost kernel[0]: display: Not usable
Oct 27 22:00:23 localhost kernel[0]: Registering For 802.11 Events
Oct 27 22:00:23 localhost lookupd[68]: lookupd (version 369.6) starting - Fri Oct 27 22:00:23 2006
Oct 27 22:00:23 localhost kernel[0]: [HCIController][setupHardware] AFH Is Supported
Oct 27 22:00:24 localhost /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow: Login Window Application Started
Oct 27 22:00:24 localhost kernel[0]: unable to start recv logic
Oct 27 22:00:24 localhost kernel[0]: athchanset: unable to restart recv logic
Oct 27 22:00:24 dean-shutes-computer configd[40]: setting hostname to "dean-shutes-computer.local"
Oct 27 22:00:25 dean-shutes-computer loginwindow[69]: Login Window Started Security Agent
Oct 27 22:00:27 dean-shutes-computer configd[40]: executing /System/Library/SystemConfiguration/Kicker.bundle/Contents/Resources/enable-net work
Oct 27 22:00:27 dean-shutes-computer configd[40]: posting notification com.apple.system.config.network_change
Oct 27 22:00:27 dean-shutes-computer lookupd[95]: lookupd (version 369.6) starting - Fri Oct 27 22:00:27 2006
Oct 27 22:00:30 dean-shutes-computer configd[40]: target=enable-network: disabled
Oct 27 22:00:30 dean-shutes-computer mDNSResponder: Adding browse domain local.
Oct 27 22:00:46 dean-shutes-computer mDNSResponder: NAT Port Mapping (LLQ event port.): timeout
I think that it happened around 22:00:20, or maybe a little before. Does anyone understand this code?
Dean

Trying to download Mountain Lion on Mac Mini currently running Lion 10.7.4. Computer is set to never sleep. When I check progress it says "waiting" under purchases on App store. What does this mean? Way too long to still be waiting. HELP

Trying to download Mountain Lion on Mac Mini currently running Lion 10.7.4. Computer is set to never sleep. When I check progress it says "waiting" under purchases on App store. What does this mean? Way too long to still be waiting. HELP

In the app store where it says waiting, do you get the option to "resume"?

I have installed mountain lion. Now when i want to turn off my Mac mini, it restart and not turn off. What happen?

i have installed mountain lion. No problem with the instalarrion.
Now when i want to turn off my Mac mini, it restart and not turn off.
What happen?
Alain Hermosilla Ringger
Chile

I reply to my self
I have a mac mini late 2009 with Mountain Lion
I solved this problem disabling the second monitor from the dvi conection and conected it again with the vga plug in. My main monitor also conected by a hdmi plug to my mac mini
My mac mini turn off with no problem now and the rebbot loop disapear
Alain Hermosilla
Chile

Mac Mini fan increase speed and noise

Hi all.
Quick question. This has been bugging me for a while so decided to get some expert help from you guys.
Lately my new mac mini fan has been operating at full speed sometimes when the computer wakes from sleep and also while restarting or when holding down command and R for the recovery partition. The computer I must say is not suffering any performance issuses or is not under any hard loads.
This is getting very annoying! I have reset the SMC as per apples instructions and it has got better. I am wondering if my external firewire drive is causing problems.
I will explain my hardware set up.
One UPS which is plugged in and the mini runs off that. USB cable from the UPS is attached to the back of the mini. I have one thunderbolt display, one printer on USB, one EYETV USB dongle, Bose speakers plugged into the USB as well.
The firewire drive goes to sleep after 30 mins have elapsed. I guess if I am not using it, eject it and leave the cable from the back of the drive unplugged until I need it again? trying to unplug it from the mini is a chore as the desk space is small.
Any thoughts would be great.
Thanks.

here is a list of wake reasons in the console.
10/03/2014 12:53:57.000 kernel[0]: Wake reason: RTC (Alarm)
10/03/2014 13:54:45.000 kernel[0]: Wake reason: RTC (Alarm)
10/03/2014 14:55:37.000 kernel[0]: Wake reason: RTC (Alarm)
10/03/2014 15:56:25.000 kernel[0]: Wake reason: RTC (Alarm)
10/03/2014 16:57:17.000 kernel[0]: Wake reason: RTC (Alarm)
10/03/2014 17:58:05.000 kernel[0]: Wake reason: RTC (Alarm)
10/03/2014 18:05:25.000 kernel[0]: Wake reason: EHC1
10/03/2014 22:36:12.000 kernel[0]: Wake reason: RTC (Alarm)
10/03/2014 23:41:29.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 00:12:17.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 00:43:10.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 01:43:58.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 02:44:46.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 03:45:38.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 04:46:26.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 05:47:14.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 06:48:06.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 07:48:54.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 08:49:46.000 kernel[0]: Wake reason: RTC (Alarm)
11/03/2014 09:13:42.000 kernel[0]: Wake reason: EHC1
These are mainly when the mac wakes up for Netowrk access as I have back to mac turned on.
I have also included this as well from the terminal output window using:
syslog -k Sender kernel -k Message Req Wake
Mar 11 00:12:17 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 00:12:17 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 00:12:18 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1011 milliseconds
Mar 11 00:43:10 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: RTC (Alarm)
Mar 11 00:43:10 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 00:43:10 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 00:43:11 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1016 milliseconds
Mar 11 01:43:58 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: RTC (Alarm)
Mar 11 01:43:58 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 01:43:58 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 01:43:59 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1020 milliseconds
Mar 11 02:44:46 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: RTC (Alarm)
Mar 11 02:44:46 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 02:44:46 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 02:44:47 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1012 milliseconds
Mar 11 03:45:38 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: RTC (Alarm)
Mar 11 03:45:38 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 03:45:38 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 03:45:39 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1012 milliseconds
Mar 11 04:46:26 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: RTC (Alarm)
Mar 11 04:46:26 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 04:46:26 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 04:46:27 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1018 milliseconds
Mar 11 05:47:14 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: RTC (Alarm)
Mar 11 05:47:14 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 05:47:14 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 05:47:15 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1024 milliseconds
Mar 11 06:48:06 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: RTC (Alarm)
Mar 11 06:48:06 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 06:48:06 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 06:48:07 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1026 milliseconds
Mar 11 07:48:54 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: RTC (Alarm)
Mar 11 07:48:54 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 07:48:54 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 07:48:55 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1016 milliseconds
Mar 11 08:49:46 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: RTC (Alarm)
Mar 11 08:49:46 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 08:49:46 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 08:49:47 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1020 milliseconds
Mar 11 09:13:42 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: Wake reason: EHC1
Mar 11 09:13:42 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Mar 11 09:13:42 unknown-28-cf-e9-04-d0-45 kernel[0] <Debug>: AppleThunderboltNHI::prePCIWake - power up complete - took 0 us
Mar 11 09:13:43 Alexs-Mac-Mini kernel[0] <Debug>: AppleThunderboltHAL::earlyWake - complete - took 1010 milliseconds

My mac mini is running very slow all of a sudden, how can i restore it's speed?

my mac mini is running very slow all of a sudden, how can i restore it's speed?

This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve your problem.
If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
Below are instructions to run a UNIX shell script, a type of program. All it does is to gather information about the state of your computer. That information goes nowhere unless you choose to share it on this page. However, you should be cautious about running a program at the instance of a stranger on a public message board. If you have doubts, search this site for other discussions in which this procedure has been followed without any report of ill effects. If you can't satisfy yourself that the instructions are safe, don't follow them.
Here's a summary of what you need to do: Copy a line of text from this web page into the window of another application. Wait about a minute. Then paste some other text, which will have been copied automatically, back into a reply on this page. The sequence is: copy, paste, wait, paste again. Details follow.
You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.
The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in your browser, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
clear; shopt -s extglob; Fb='%s\n\t(%s)\n'; Fm='\n%s:\n\n%s\n'; Fs='\n%s: %s\n'; Fu='User %s%%\t\tSystem %s%%'; PB="/usr/libexec/PlistBuddy -c Print"; A () { [[ a -eq 0 ]]; }; R () { o=; [[ r -eq 0 ]]; }; Pm () { [[ "$o" ]] && o=`sed 's/^ */ /' <<< "$o"` && printf "$Fm" "$1" "$o"; }; Pc () { o=`egrep -v '^[[:blank:]]*($|#)' "$2"`; Pm "$1"; }; Pp () { o=`$PB "$2" | awk -F'= ' \/$3'/{print $2}'`; Pm "$1"; }; Ps () { o="${o##+( )}"; [[ ! "$o" =~ ^0?$ ]] && printf "$Fs" "$1" "$o"; }; id | grep -qw '80(admin)'; a=$?; A && sudo true; r=$?; t=`date +%s`; clear; { A || echo $'No admin access\n'; A && ! R && echo $'No root access\n'; system_profiler SPSoftwareDataType | sed '8!d;s/^ *//'; o=`system_profiler SPDiagnosticsDataType | sed '5,6!d'`; [[ "$o" =~ Pass ]] || Pm "POST"; o=`pmset -g therm | sed 's/^.*CP/CP/'`; grep -q 'No th' <<< "$o" && o=; Pm "Thermal conditions"; o=`pmset -g sysload | grep -v :`; grep -q '= [^GO]' <<< "$o" || o=; Pm "System load advisory"; o=`nvram boot-args | awk '{$1=""; print}'`; Ps "boot-args"; o=`ls /L*/L*/Dia*/*.panic | wc -l`; Ps "Panics"; o=`ls /L*/L*/Dia*/*.c* | tail`; Pm "System crash logs"; o=`ls L*/L*/Dia* | tail`; Pm "User crash logs"; o=`syslog -F bsd -k Sender kernel -k Message CReq 'GPU |hfs: Ru|I/O e|n Cause: -|NVDA\(|pagin|SATA W|timed? ?o' | tail -n25 | awk '/:/{$4=""; $5=""; print}'`; Pm "Kernel messages"; o=`df -m / | awk 'NR==2 {print $4}'`; [[ o -lt 5120 ]] && Ps "Free space (MiB)"; o=$(($(vm_stat | awk '/eo/{sub("\\.",""); print $2}')/256)); o=$((o>=1024?o:0)); Ps "Pageouts (MiB)"; s=( `sar -u 1 10 | sed '$!d'` ); [[ s[4] -lt 90 ]] && o=`printf "$Fu" ${s[1]} ${s[3]}` || o=; Pm "Total CPU usage" && s=(`ps acrx -o comm,ruid,%cpu | sed '2!d'`); o=${s[2]}%; Ps "CPU usage by process $s of user ${s[1]}"; s=(`top -R -l1 -n1 -o prt -stats command,uid,prt | sed '$!d'`); s[2]=${s[2]%[+-]}; o=$((s[2]>=25000?s[2]:0)); Ps "Mach ports used by process $s of user ${s[1]}"; o=`kextstat -kl | grep -v com\\.apple | cut -c53- | cut -d\< -f1`; Pm "Loaded extrinsic kernel extensions"; R && o=`sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|calendarse|cups|dove|isc|ntp|post[fg]|x)/{print $3}'`; Pm "Extrinsic system jobs"; o=`launchctl list | sed 1d | awk '!/0x|com\.apple|org\.(x|openbsd)|\.[0-9]+$/{print $3}'`; Pm "Extrinsic agents"; for d in {/,}L*/{La,Priv,Sta}*; do o=`ls -A "$d" | egrep -v '^(\.DS_Store$|com\.apple\.)'`; Pm "$d"; done; o=`find -L /S*/L*/E* {/,}L*/{A*d,Compon,Ex,In,Keyb,Mail,P*P,Qu,Scripti,Servi,Spo}* -type d -name Contents -prune | while read d; do ID=$($PB\ :CFBundleIdentifier "$d/Info.plist") || ID="No bundle ID"; egrep -qv "^com\.apple\.[^x]|Accusys|ArcMSR|ATTO|HDPro|HighPoint|driver\.stex|hp-fax|\.hpio|JMicron|microsoft\.MDI|print|SoftRAID" <<< $ID && printf "$Fb" "${d%/Contents}" "$ID"; done`; Pm "Extrinsic loadable bundles"; o=`find /u*/{,*/}lib -type f -exec sh -c 'file -b "$1" | grep -qw shared && ! codesign -v "$1"' {} {} \; -print`; Pm "Unsigned shared libraries"; o=`launchctl getenv DYLD_INSERT_LIBRARIES`; Pm "Inserted libraries"; o=`find {,/u*/lo*}/e*/periodic -type f -mtime -10d`; Pm "Modified periodic scripts"; o=`scutil --proxy | grep Prox`; Pm "Proxies"; o=`scutil --dns | awk '/r\[0\] /{if ($NF !~ /^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./) print $NF; exit}'`; Ps "DNS"; R && o=`sudo profiles -P | grep :`; Pm "Profiles"; for f in fstab sysctl.conf crontab launchd.conf; do Pc $f /etc/$f; done; Pc "hosts" <(egrep -v '(local|broadcast)host' /etc/hosts); Pc "User launchd" ~/.launchd; R && Pc "Root crontab" <(sudo crontab -l); Pc "User crontab" <(crontab -l); R && o=`sudo defaults read com.apple.loginwindow LoginHook`; Pm "Login hook"; Pp "Global login items" /L*/P*/loginw* Path; Pp "User login items" L*/P*/*loginit* Name; Pp "Safari extensions" L*/Saf*/*/E*.plist Bundle | sed 's/\..*$//;s/-[1-9]$//'; o=`find ~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $ | wc -l`; Ps "Restricted user files"; cd; o=`system_profiler SPFontsDataType | egrep "Valid: N|Duplicate: Y" | wc -l`; Ps "Font problems"; o=`find L*/{Con,Pref}* -type f ! -size 0 -name *.plist ! -exec sh -c 'plutil -s "$1" >&-' {} {} \; -print`; Pm "Bad plists"; d=(Desktop L*/Keyc*); n=(20 7); for i in {0..1}; do o=`find "${d[$i]}" -type f -maxdepth 1 | wc -l`; o=$((o<=n[$i]?0:o)); Ps "${d[$i]##*/} files"; done; o=$((`date +%s`-t)); Ps "Elapsed time (s)"; } 2>/dev/null | pbcopy; exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign ($) or a percent sign (%). If you get the percent sign, enter “sh” and press return. You should then get a new line ending in a dollar sign.
Click anywhere in the Terminal window and paste (command-V). The text you pasted should vanish immediately. If it doesn't, press the return key.
If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important.
If you're not logged in as an administrator, you won't be prompted for your password. The test will still run. It just won't do anything that requires administrator rights.
The test may take up to a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. There is no indication of progress until it's done. Wait for the line "[Process completed]" to appear in the Terminal window. If you don't see that line within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report your results. No harm will be done.
When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
When you post the results, you might see the message, "You have included content in your post that is not permitted." That's because the forum software falsely identifies something in the post as a violation of the terms of use. If that happens, please post the results on Pastebin, then post a link here to the page you created.
Note: This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
Copyright © 2014 Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Terms of Use of Apple Support Communities ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

HELP- mac mini fan just sped up to 5500 RPM

mac mini fan just sped up to 5500 RPM
temps are normal though, no overload to system.

The first thing I would try is to perform an SMC reset on the system:
-From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).
-Unplug all cables from the computer, including the power cord and any display cables.
-Wait at least 15 seconds.
-Plug the power cord back in, +making sure the power button is not being pressed at the time.+
-Then reconnect your keyboard and mouse to the computer.
-Press the power button on the back to start up your computer.
If the fan continues to run at full speed after that, does it do so right from power on, or on;y after the system has been running a few minutes?

I cannot get my ipod touch or iphone to be recognized by Itunes on my mac mini. Only when i download itunes each time afresh, will it show up the first time. Then these devices will not be recognized at other times. Is it because i am not uninstalling it

I cannot get my ipod touch or iphone to be recognized by Itunes on my mac mini. Only when i download itunes each time afresh, will it show up the first time. Then these devices will not be recognized subsequently. Is it because i am not uninstalling itunes before I download it? Surely this is a basic thing, ie that my devices need to recognize each other?

After you dry the iPod:
How to fix a wet iPod or iPhone | eHow.comfix-wet-ipod-iphone.html
Connect the iPod to a charging source overnight and then try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar
If iTunses can see the iPod you can backup the iPod
iOS: How to back up
http://support.apple.com/kb/HT1766and copy media from the iPod
Recovering your iTunes library from your iPod or iOS device: Apple Support Communities
If iTunes does not see the iPod then its contents are lost

Mac Mini Fans run when computer is off

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