Why is the fan running all the time and loud all of a sudden

The fan on my computer starts running after about 5 minutes of being turned on or waking up. It continues to run and is very loud. Is there a fix for this problem?

Try:
Intel-based Macs: Resetting the System Management Controller (SMC)
Resetting your Mac's PRAM and NVRAM
Boot into Safe Mode then back into normal boot.
Repair the Hard Drive and Permissions - Yosemite, Mavericks, Mountain Lion or Lion
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility and press the Continue button. After Disk Utility loads select the Macintosh HD entry from the the left side list. Click on the First Aid tab, then click on the Repair Disk button. If Disk Utility reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit Disk Utility and return to the main menu. Select Restart from the Apple menu.

Similar Messages

The fan on my air Processor 1.7 GHz Intel Core i5 seems like it on all the time and loud

the fan on my air Processor 1.7 GHz Intel Core i5 seems like it on all the time and loud

Fan
The computer's fans run at high speed although the computer is not experiencing heavy usage and is properly ventilated.
Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Best.

Fan Runs all the time- and Loud

Since last night, the fan on my G5 hs been running constantly and loudly. It never did this before. The only difference between then and now is I run Software Update which updated iPhotos and QuickTime. It's driving me crazy! Anyone know how to stop it? Even when I restart, the fans never shut down. When I shut down they stop until I restart. I tried resetting the SMU but that didn't help.
Thanks.

Which model iMac do you have (how to identify your iMac)?
Have you repaired Permissions?

Why has the text and general size of page suddenly shrunk in size in websites and especially in retrieved email sites? Every retrieved page needs to be zoomed in on.

Without explanation every retrieved email site or online website appears on screen in minute font and picture size and needs to be zoomed in on to allow normal visibility.

Reset the page zoom on pages that cause problems: <b>View > Zoom > Reset</b> (Ctrl+0 (zero); Cmd+0 on Mac)
* http://kb.mozillazine.org/Zoom_text_of_web_pages

T61 fan runs all the time on AC, does not when on battery

Hello,
with the lastest BIOS (and those before) my T61's (8889) fan runs all the time when it is AC powered. (After initial start it begins with 0, then ~2500 rpm, then ~3100 rpm and then stays there even if idle).
When on battery under the same circumstances, it doesn't go above ~2500rpm (which is far less noisy then the ~3100rpm level) and often it even stops.
As far as the BIOS settings allow, it is trimmed to max. power saving also when AC powered but still it's getting on my nerves.
Can Lenovo please look into this and make it as quiet as it is on battery also when on AC?
P.S. I cannot see that the temperature levels as reported through ACPI are any higher on AC then on battery, so I don't understand why the fan has to run all the time that loud when on AC.
Thanks,
Daniel

Hi Daniel,
There are two options for you to consider:
1) Better CPU speed management:
- Install a utility called "RMClock" to better manage the CPU (it's a free utility that throttles the CPU to run at different speeds depending on the needs - the CPU speeds increase automatically to full power when required).
- By regulating the CPU speed, the fan will not need to work that often to expell hot air, because the CPU generates much less heat.
- you will find a quick "how-to" for using RMClock --> HERE
2) BIOS thermal management
- You can change the BIOS settings for the "thermal management" (enter BIOS, choose "Config", then "Thermal Management" ) . Change the fan control from "performance" to "battery optimized" under the "plugged-in" option. This will reduce the frequency with which the fan runs, but beware that if your system is plugged in and you're not using any CPU management - meaning that your CPU is running at full speed, then the system will heat up more than you'll be comfortable with!!
I would therefore suggest that you use a CPU throttling management utility (like RMClock mentioned above) together with the thermal management option in your BIOS. This will reduce the frequency with which the fan starts and operates but still keeping the system cool.
A completely different approach is to install and use "Thinkpad Fan Control" -- read this thread ... Be aware that the utility takes a lot of tweaking to get the settings right, but also be aware that you can damage your system if you do not make the right settings!!!
Hope this helps!
Steve
Message Edited by icantux on 07-09-2008 02:18 PM

Pink HP mini 110 fan runs all the time...

Dear HP and community,
Does anyone know if it is normal for the fan in my HP mini to run all of the time? I love my pink little HP mini but the fan running all of the time is rather annoying. I got my HP mini at Best Buy and now they no longer have the HP mini in pink at Best Buy... If this is a mechanical problem, would I have to exchange my computer at Best Buy or would HP be able to help me so that I could exchange it for another pink one? I guess I'm getting ahead of myself! I hope it is an easy fix but am afraid since I've only had my mini for a few weeks....
Thoughts?
Erin

You probably should repost this in the notebook hardware forum where you will find other Mini users to compare notes. I have heard that the fan on the Mini comes on frequently, but not as you described (all the time). On the netbook front, I am still using the Asus 1000H, which is whisper quiet BTW.
If your 110 is determined to be faulty, HP will probably choose to repair it if it is still under warranty.

Fan running all the time - 2011 21.5 inch i5 iMac

I purchased a new 2011 21.5-inch: 2.7GHz i5 on Friday just gone (2 days ago). All was going well with the new toy until this morning (Sunday).
Suddenly the CPU fan was running all the time and at full speed when the computer was not under any real load - very noisy.
I have reset the PRAM and SMC several times now. Within 30 seconds of each reboot the CPU fan reaches 4000 rpm and stays there.
When I run a hardware test I get the following error - Error 4SNS/1/C0000008:TS2p--124. This error is detected under both the quick and extended tests.
I do have to say that I am disappointed that 2 days out of the box it looks like I am return the iMac to the Authorised Reseller.
Can anyone confirm my understanding that:
a) the CPU fan running loud and hard (4000 rpm) when not under load is NOT normal
b) the Error code above relates to the logic board
c) next step is take it back to Apple or the authorized reseller from where it was purchased.
Cheers
Shaun

4SNS/1/C0000008:TS2P--124
When U install the SSD under the optical drive(OD), the air from the OD fan that was supposed to swing under the OD to exit on the uppper vent has no where to go and hence swings across and exits mostly through the vent on the other side near the camera whereon lies a Skin sensor, which blows away/damages tricking the iMac to believe that the CPU is hot and the CPU fan starts to run at full speed of 4000rpm and the Apple hardware shows error 4SNS/1/C0000008:TS2P--124.
This skin sensor will then need to be replaced.
The CPU Fan cannot be controlled by any software.
The only options available are:
1.Change the primary HDD with a SSD.This will result in the HDD fan running at a higher speed as the SSD does not have any moving parts.The HDD fan sensor gets to believe that the HDD is hot since it does not get inputs from the SSD.Once you change to SSD you can use software to control the HDD or the Optical fans.
2.Change the Optical Disk drive with a "SSD in a Optical Drive(OD) Caddy".This will result in the optical drive fan running at a higher speed as the SSD does not have any moving parts.The OD fan sensor gets to believe that the OD is hot since it does not get inputs from the SSD.Once you change to SSD you can use software to control the HDD or the Optical fans.
Do not use the OWC or other dual drive kit that advice U to put a next SSD under the OD, unless ur iMac is under warranty or u have plenty of technical skills & luck.

Fan runs all the time after upgrade to 10.4

Upgraded to 10.4 about a week ago and now the fan runs all the time. I lowered the processor to reduced performance because the fan noise was very loud. Doing this lowered the fan speed but did not stop it. Memory usage is not a problem, shows 75% free.
Before 10.4 was using 10.3 fan ran at times but never all the time.
Any ideas.

Tom, have you down loaded an app like "X Resource Graph", I think I got it at VersionTracker, which will tell you what fan is running at high enoug rpm's to generate noise. Plus it will give you cpu usage and temps plus hard drive temps. If its the cpu fan and the cpu is really working, go to the Activity Monitor in the utilities file and see what app is causing the problem. I don't know what to do if it's the hard drive or system fan. My system fan rarely goes over 1800 rpm, my hard drive stays between 2000 and 2200 but my cpu fan will accelerate when its under pressure to to over 3000 rpm. I just start hearing the cpu fan when it gets to 2400 rpm.

Brand new iMac 3.4GHz fan runs all the time - how do I stop it?

Hi, just opened my shiny new imac but the fan runs all the time and very loud! Has anyone any ideas how to fix this or should I return the imac to apple?
I've also noticed that none of my external drive icon show up on the desktop - nor does the imac hardrive icon appear - any ideas?
Thank you in anticipaction.

Try an SMC reset, you may need to do it at least 2x.
SMC RESET
Shut down the computer.
Unplug the computer's power cord and all peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
PRAM RESET
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

Laptop fan runs all the time, broker runtime cpu usage after Windows 10 final upgrade

ENVY 17t-J100 Leap Motion, 16 GB RAM, i7, SSD primary, HDD secondary drives. Avast antivirus free. Windows Firewall. The laptop had Windows 8.1 and everything was great. I did the Windows 10 Home free upgrade on Day 1. Everything seemed fine. Fingerprinter reader and everything works. Great. But then I noticed that the fan was always running and the left side of the metal casing gets hot. In task manager heat map sorted by CPU usage, Broker Runtime is at the top. Not much ram, about 10 MB. But the CPU usage is always 20% and higher. Doesn't seem like much. But it makes the fan run all the time and the laptop heats up with it running all the time. Anyone else seen this? General internet searching shows this has been an issue with Broker Runtime since Windows 8 and not unique to any brand of computer. But it wasn't like this when I was using WIndows 8.1 One forum said it was the P2P Windows update feature and my laptop was sharing updates. So I disabled that and rebooted. No change. Now I see some people saying it is the Live Tiles features in the Start Menu. But I had live tiles with the WIndows 8 menu and no issues. The only way to disable Live Tiles globally is to edit the registry, and I shouldn't have to do that for this. And I like Live Tiles. So not sure that really is the issue either.

hockeycanuckjc wrote:
Have all Windows Updates on Windows 10 been applied since installing it? I know there are people weary to update Windows 10 since there have been a few news reports with some people having the infinite reboot loop after installing a particular update For me, yes. All updates applied and automatic updates enabled. This Runtime Broker issue has been there since the upgrade and all updates to this point.

Long motor test error did not reach target speed in time. fan runs all the time. sensor is connected. do I have a bad fan? speed in time speed

ran apple hardware diagnostics. fan - master - long motor test error: did not reach target speed in time. fan runs all the time. sensor is connected. do I have a bad fan?

ran apple hardware diagnostics. fan - master - long motor test error: did not reach target speed in time. fan runs all the time. sensor is connected. do I have a bad fan?

IMac fan running all of the time

iMac fan running all of the time - how to stop. seems that after several hours iMac then shuts down on it's own accord.
Is there any help online - or take the 15 month old iMac to the shop ?

You can try an SMC reset, which can sometimes fix a goofy fan:
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
What you're describing, however, sounds like a temperature sensor that's either acting correctly or it's not. I'd install iStat Pro from http://islayer.com/apps/istatpro/ , and monitor the temps and fan speeds.
I'd also run the Apple hardware test to see if it finds any obvious hardware issues. This Apple note tells how to run it: http://support.apple.com/kb/HT1509 (if you have Snow leopard, look down towards the bottom of the note for directions).
When the fan starts roaring, have you looked at your Activity Monitor (on your hard drive in applications/utilities) to see if there are any programs that are driving up CPU usage to high levels? That could contribute to an overheating situation.

Fan runs all the time after OS X Mavericks installation, how do I turn fan off?

Fan runs all the time after OS X Mavericks installation, how do I turn fan off?

Rest the SMC, do it 2-3 times. Please click Intel iMac SMC and PRAM resets for instructions.

Why to give New Run Name every time for filling up the Set UP Tables

Hi,
While filling up the SETUP Tables we have to give RUN Name.
Every time while filling the SETUP Tables we have to give New Run Name.Is there any special reason for this
every time we have to give NEW Run Name while filling up the SET UP Tables?
Thanks and Regards,
Asim
Edited by: asim khan on Apr 19, 2011 4:09 PM
Edited by: asim khan on Apr 19, 2011 4:11 PM

Hi,
Thats true but my question is why to give NEW Run name every time while filling up the SET UP Tables.
Why it wont take old run name . Whats the logic behind this.
Thanks for the Reply.
Asim

Macbook Pro is slow, freezing all the time and has Wi-Fi problems

Hello!
My Macbook Pro started acting kinda strange a couple of weeks ago. It's slow, freezing all the time and constantly connecting and reconnecting to the Wi-Fi network after around half a minute of usage.
Here is the story, as far as I know:
In the start of 2014, pup-up boxes started popping up on my Macbook Pro. They said that I had to enter a password for the Keychain to gain access to a service or something. The odd thing about it was that I had never set up my iCloud Keychain. It just started appearing without me knowing why. Unfortunately, I didn't know the password for this due to the fact that I never set it up. I tried every password combination that could possibly work, but I didn't get through it. I tried different solutions, but nothing worked out. I solved it by simply making a new user account on my Mac. I used this for like 1 month before the whole Mac with all its user started messing itself up.
It might be worth to notice that this secondary-user didn't require a password to log in, so when I closed my Macbook and re-opened it, it would continue where it was left off. This might have been the reason for the Mac sometimes to get really warm while being in my backpack, which might also have caused the problem. I am not sure though.
After using the secondary user for a while, the Mac started acting strange again. This time it was something different. One day, my girlfriend started up my Macbook Pro and noticed that it was extremely slow. I assumed it was just in the need of a restart, but that wasn't it. The computer started freezing all the time at first. It froze when I clicked something in an application, and I had to wait like 10 seconds for it to go back to normal. If I was typing anything on Facebook, it would freeze, but I could still use any other tab of the browser without any problems. However, they would freeze to if I did anything special on other websites. Every other program would also freeze for reasons like typing or clicking on anything.
After a short while, it started being really slow during startup and use. A few days ago, my Macbook Pro also started disconnecting from Wi-Fi networks while trying to load pages. It doesn't disconnect every time, but it does sometimes. It tries to reconnect after that, and if it succeed's, everything is back to normal for a while.
Additionaly, the battery have been draining faster, and when it reached 0%, the computer turned off and closed all the open programs. Normally it has entered Sleep Mode, but not anymore.
Do any of you have any clue what the issue might be?
I have done the following:
- Reset PRAM
- Restore to system defaults
- Installed AVG Antivirus and scanned it
- Repaired and verified disk in Disk Utility.
- Uninstalled Adobe Flash Player.
I hope anyone can help me! I really need my computer for educational use!

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem.
2. 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.
3. Below are instructions to run a UNIX shell script, a type of program. All it does is to collect information about the state of the computer. That information goes nowhere unless you choose to share it. However, you should be cautious about running any kind of program (not just a shell script) at the request 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. Ask for other options.
Here's a summary of what you need to do, if you choose to proceed: Copy a line of text from this web page into the window of another application. Wait for the script to run. It usually takes a few minutes. Then paste the results, which will have been copied automatically, back into a reply on this page. The sequence is: copy, paste, wait, paste again. Details follow.
4. 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.
5. 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 section doesn’t apply. Don't log in as root.
6. 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 the browser window, 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:
PATH=/usr/bin:/bin:/usr/sbin:/sbin; clear; Fb='%s\n\t(%s)\n'; Fm='\n%s\n\n%s\n'; Fr='\nRAM details\n%s\n'; Fs='\n%s: %s\n'; Fu='user %s%%, system %s%%'; AC="com.autodesk.AutoCAD com.google.GoogleDrive"; H='^[[:space:]]*((127\.0\.0\.1|::1|fe80::1%lo0)[[:space:]]+local|(255\.){3}255[[:space:]]*broadcast)host[[:space:]]*$'; NS=networksetup; PB="/usr/libexec/PlistBuddy -c Print"; A () { [[ a -eq 0 ]]; }; M () { find -L "$d" -type f | while read f; do file -b "$f" | egrep -lq XML\|exec && echo $f; done; }; AT () { o=`file -b "$1" | egrep -v '^(A.{16}t$|cann)'`; Ps "${1##*/} format"; }; Pc () { o=`grep -v '^ *#' "$2"`; l=`wc -l <<< "$o"`; [[ l -gt 25 ]] && o=`head -n25 <<< "$o"`$'\n'"[$((l-25)) more line(s)]"; Pm "$1"; AT "$1"; }; Pm () { [[ "$o" ]] && o=`sed -E '/^ *$/d;s/^ */ /;s/[-0-9A-Fa-f]{22,}/UUID/g;s/(ochat)\.[^.]+(\..+)/\1\2/;/U.+\/Shared\//b'$'\n''s/(\/Users\/)[^/]+/\1USER/g' <<< "$o"` && printf "$Fm" "$1" "$o"; }; Pp () { o=`$PB "$2" | awk -F'= ' \/$3'/{print $2}'`; Pm "$1"; }; Ps () { o=`echo $o`; [[ ! "$o" =~ ^0?$ ]] && printf "$Fs" "$1" "$o"; }; R () { o=; [[ r -eq 0 ]]; }; SP () { system_profiler SP${1}DataType; }; id -G | grep -qw 80; a=$?; A && sudo true; r=$?; t=`date +%s`; clear; { A || echo $'No admin access\n'; A && ! R && echo $'No root access\n'; SP Software | sed -n 's/^ *//;5p;6p;8p'; h=(`SP Hardware | awk '/ Id/{print $3}; /Mem/{print $2}'`); o=$h; Ps "Model"; o=$((h[1]<4?h[1]:0)); Ps "Total RAM (GB)"; o=`SP Memory | sed '1,5d;/[my].*:/d'`; [[ "$o" =~ s:\ [^O]|x([^08]|0[^2]|8[^0]) ]] && printf "$Fr" "$o"; o=`SP Diagnostics | sed '5,6!d'`; [[ "$o" =~ Pass ]] || Pm "POST"; p=`SP Power`; o=`awk '/Cy/{print $NF}' <<< "$p"`; o=$((o>=300?o:0)); Ps "Battery cycles"; o=`sed -n '/Cond.*: [^N]/{s/^.*://p;}' <<< "$p"`; Ps "Battery condition"; for b in FireWire Thunderbolt USB; do o=`SP $b | sed -En '1d;/:$/{s/ *:$//;x;s/\n//g;s/\).*/)/p;};/^ *(V.+ [0N]|Man).+ /{s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};/Apple|Genesy|Intel|SMSC/{s/.//g;h;}'`; Pm $b; done; o=`pmset -g therm | sed 's/^.*C/C/'`; [[ "$o" =~ No\ th|pms ]] && o=; Pm "Thermal conditions"; o=`pmset -g sysload | grep -v :`; [[ "$o" =~ =\ [^GO] ]] || o=; Pm "System load advisory"; o=`nvram boot-args | awk '{$1=""; print}'`; Ps "boot-args"; a=(/ ""); A=(System User); for i in 0 1; do o=`cd ${a[$i]}L*/Lo*/Diag* || continue; for f in *.{cr,h,pa,s}*; do [[ -f "$f" ]] || continue; d=$(stat -f%Sc -t%F "$f"); [[ "$f" =~ h$ ]] && grep -lq "^Thread c" "$f" && f="$f *"; echo "$d ${f%%_2*} ${f##*.}"; done | sort | tail`; Pm "${A[$i]} diagnostics"; done; grep -lq '*$' <<< "$o" && printf $'\n\t* Code injection\n'; o=`syslog -F bsd -k Sender kernel -k Message CReq 'caug|GPU |hfs: Ru|last value [1-9]|n Cause: -|NVDA\(|pagin|proc: t|Roamed|rror|ssert|Thrott|timed? ?o|WARN' -k Message Ane 'SMC:' | tail -n25 | awk '/:/{$4=""; $5=""};1'`; Pm "Kernel messages"; o=`df -m / | awk 'NR==2 {print $4}'`; o=$((o<5120?o:0)); 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 '$!d'` ); [[ s[4] -lt 85 ]] && o=`printf "$Fu" ${s[1]} ${s[3]}` || o=; Ps "Total CPU usage" && { s=(`ps acrx -o comm,ruid,%cpu | sed '2!d'`); n=$((${#s[*]}-1)); c="${s[*]}"; o=${s[$n]}%; Ps "CPU usage by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; }; s=(`top -R -l1 -n1 -o prt -stats command,uid,prt | sed '$!d'`); n=$((${#s[*]}-1)); s[$n]=${s[$n]%[+-]}; c="${s[*]}"; o=$((s[$n]>=25000?s[$n]:0)); Ps "Mach ports used by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; o=`kextstat -kl | grep -v com\\.apple | cut -c53- | cut -d\< -f1`; Pm "Loaded extrinsic kernel extensions"; R && o=`sudo launchctl list | awk 'NR>1 && !/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|calendarse|cups|dove|isc|ntp|openld|post[fg]|x)/{print $3}'`; Pm "Extrinsic daemons"; o=`launchctl list | awk 'NR>1 && !/0x|com\.apple|org\.(x|openbsd)|\.[0-9]+$/{print $3}'`; Pm "Extrinsic agents"; o=`for d in {/,}L*/Lau*; do M; done | egrep -v 'com\.apple\.(CSConfig|server)' | while read f; do ID=$($PB\ :Label "$f") || ID="No job label"; printf "$Fb" "$f" "$ID"; done`; Pm "launchd items"; o=`for d in /{S*/,}L*/StartupItems; do M; done`; Pm "Startup items"; sys=`pkgutil --regexp --only-files --files com.apple.pkg.* | sort | uniq | sed 's:^:/:'`; b=`sed -E '/^.+Lib.+\/Contents\/Info.plist$/!d;s/\/Info.plist$//;/Contents\/./d' <<< "$sys"`; l=`egrep '^/usr/lib/.+dylib$' <<< "$sys"`; [[ "$b" && "$l" ]] && { o=`find -L /S*/L*/{C*/Sec*A,E}* {/,}L*/{A*d,Compon,Ex,In,iTu,Keyb,Mail/B,P*P,Qu*T,Scripti,Sec,Servi,Spo}* -type d -name Contents -prune | grep -Fv "$b" | while read d; do test -f "$d/Info.plist" || continue; ID=$($PB\ :CFBundleIdentifier "$_") || ID="No bundle ID"; printf "$Fb" "${d%/Contents}" "$ID"; done`; Pm "Extrinsic loadable bundles"; o=`find /usr/lib -type f -name *.dylib | grep -Fv "$l"`; Pm "Extrinsic shared libraries"; :; } || echo $'\nReceipts missing'; o=`for e in INSERT_LIBRARIES LIBRARY_PATH; do launchctl getenv DYLD_$e; done`; Pm "Inserted dylibs"; o=`find -L {,/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}'`; i=`route -n get default | awk '/e:/{print $2}'`; I=`$NS -listnetworkserviceorder | sed -En '/ '$i'\)$/{x;s/^$.+$ //p;q;};x'`; n=`$NS -getdnsservers "$I" | awk '!/^T/{printf "not "}'`; Ps "DNS (${n}from DHCP)"; o=`$NS -getinfo "$I" | awk '/k:/{if ($3 !~ "(255\.){3}0") print $3}'`; Ps "Netmask"; R && o=`sudo profiles -P | grep : | wc -l`; Ps "Profiles"; f=auto_master; [[ `md5 -q /etc/$f` =~ ^b166 ]] || Pc $f /etc/$f; for f in fstab sysctl.conf crontab launchd.conf; do Pc $f /etc/$f; done; f=/etc/hosts; Pc "hosts" <(egrep -v "$H" $f ); AT $f; Pc "User launchd" ~/.launchd*; R && Pc "Root crontab" <(sudo crontab -l); Pc "User crontab" <(crontab -l); R && o=`sudo defaults read com.apple.loginwindow LoginHook`; Pm "Login hook"; LD="$(`find /S*/*/F* -type f -name lsregister | head -n1` -dump)"; o=`for ID in $AC; do [[ "$LD" =~ $ID ]] && echo $ID; done`; Pm "Application check"; Pp "Global login items" /L*/P*/loginw* Path; Pp "User login items" L*/P*/*loginit* Name; Pp "Safari extensions" L*/Saf*/*/E*.plist Bundle | sed -E 's/(\..*$|-[1-9])//g'; o=`find ~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $ | wc -l`; Ps "Restricted user files"; cd; o=`SP Fonts | egrep 'id: N|te: Y' | wc -l`; Ps "Font problems"; o=`find L*/{Con,Pref}* -type f ! -size 0 -name *.plist | while read f; do plutil -s "$f" >&- || echo $f; done`; Pm "Bad plists"; d=(Desktop L*/Keyc*); n=(20 7); for i in 0 1; do o=`find "${d[$i]}" -type f -maxdepth 1 | wc -l`; o=$((o<=n[$i]?0:o)); Ps "${d[$i]##*/} file count"; done; o=; [[ UID -eq 0 ]] && o=root; Ps "UID"; o=$((`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.
7. 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.
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.
8. If you see an error message in the Terminal window such as "syntax error," enter
exec bash
and press return. Then paste the script again.
9. 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 don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
10. The test may take 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. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
[Process completed]
to appear. If you don't see it 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 the results. No harm will be done.
11. 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.
12. When you post the results, you might see the message, "You have included content in your post that is not permitted." It means that the forum software has misidentified something in the post as a violation of the rules. If that happens, please post the test 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 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Terms of Use of the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

Why is the fan running all the time and loud all of a sudden

Similar Messages

Maybe you are looking for