Cpu and fans running at 100%

I've been working on this 20" iMac G5 for a couple weeks now and I'm stumped.
I've reset the smu, the nvram, wiped and put on a fresh install of 10.5, updated to 10.5.8 and still the computer is LOUD.
The fans run at a constant 100%, so I check the processor temp and it was 85c the instant the screen came on. So I proceeded to check the ventilation, took it all apart and all the air ways are clear, I checked, cleaned, and applied brand new thermal paste, put it all back together and still the instant the screen comes on the fans go to 100% and temp jumps to 85c
Then a student said "is it working hard?" Just to humor him I launched the activity monitor and to my surprise it was. The processor was running at 100% and the process that was doing it all is "top" running from the user 'root'.
I proceeded to type kill 321 (the pid) and the processor dropped to 10% and after about half an hour the temp was a normal 60c and the fans went quiet, but the instant I log out or reboot that 'top' process kicks back on and the machine starts over heating.
I've tried 10.4 and 10.5, wiped the HD about 5times and 'top' keeps running the processor off the deep end with every install.
I've tried permission repairs and hardware checks, even ran the full techtools deluxe scan.
I've tried finding others with this problem but it is understandably difficult to search for problems with 'top'.
It is no longer under warranty and no one is going to miss it if I just throw it out, but I don't want to give up on a 2.1Ghz machine for student use if that can be avoided.
I'm willing to try any ideas to get that process fixed, the only idea I have left is to replace the cmos battery, and prey to the computer gods, but I doubt that will do anything.

Hey there - same problm here w/ white flatscreen G5 (PPC).
Did you have any luck in solving your problem?
Thx
WP

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Hi
I'm using a MacBook (white) from late 2007. ("MacBook3,1")
I was running 10.5 until recently and after having done a software update, the CPU would constantly run at 100% (and of course the fans run on high speed all the time, which is very annoying).
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I tried that, it didn't help.
So I thought I'd try to upgrade the MacBook to Snow Leopard, since I have the install DVD.
I did that, upgrade ran fine, but sadly the problem with the constant high CPU usage was still there afterwards.
So I wiped the hard drive (actually, I just wiped the OSX partition, not my Bootcamp/Windows partition) and re-installed Snow Leopard from scratch. (it's a "10.6.3" DVD).
I was very surprised to see that this brand new, fresh 10.6 installation was showing the same symptoms:
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I have absolutely no idea what's causing this, since this basic installation of 10.6 shows the same symptoms.
If I boot into Windows XP (Bootcamp), then everything is fine: CPU usage while the computer is idle is pretty much zero and the fans are quiet.
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Kernel Task Causing High CPU and Fan to Run all the time

Hello,
Recently I have had a problem with my computer running really slow, the CPU is running at almost 100% and the fan wont shut off. Please help its effecting my school work. Below is my EtreCheck.
Thanks.
Problem description:
CPU is up to full usage most of the time and fan won’t stop running. Computer running really slow.
EtreCheck version: 2.1.8 (121)
Report generated March 25, 2015 at 2:34:01 PM PDT
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Click the [Adware! - Remove] links for help removing adware.
Hardware Information: ℹ️
    MacBook Pro (13-inch, Early 2011) (Technical Specifications)
    MacBook Pro - model: MacBookPro8,1
    1 2.3 GHz Intel Core i5 CPU: 2-core
    4 GB RAM Upgradeable
        BANK 0/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            2 GB DDR3 1333 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
    Battery Health: Normal - Cycle count 700
Video Information: ℹ️
    Intel HD Graphics 3000 - VRAM: 384 MB
        Color LCD 1440 x 900
System Software: ℹ️
    OS X 10.9.5 (13F1066) - Time since boot: 0:18:56
Disk Information: ℹ️
    Hitachi HTS545032B9A302 disk0 : (320.07 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Macintosh HD (disk0s2) / : 319.21 GB (73.63 GB free)
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
    MATSHITADVD-R   UJ-8A8
USB Information: ℹ️
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Inc. Apple Internal Keyboard / Trackpad
    Apple Inc. BRCM2070 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Configuration files: ℹ️
    /etc/hosts - Count: 15
Gatekeeper: ℹ️
    Mac App Store and identified developers
Adware: ℹ️
    Geneio [Adware! - Remove]
Kernel Extensions: ℹ️
        /System/Library/Extensions
    [not loaded]    com.sony.driver.prs2 (1.0.2d1) [Click for support]
Launch Agents: ℹ️
    [not loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
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    [loaded]    com.divx.dms.agent.plist [Click for support]
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    [loaded]    com.oracle.java.Java-Updater.plist [Click for support]
    [not loaded]    com.sony.ReaderDesktop.RunReaderDesktop.plist [Click for support]
    [failed]    com.tvmobili.artwork.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [loaded]    com.adobe.SwitchBoard.plist [Click for support]
    [loaded]    com.disc-soft.DAEMONTools.PrivilegedHelper.plist [Click for support]
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    [failed]    com.tvmobili.tvmobilisvcd.plist [Click for support] [Click for details]
User Launch Agents: ℹ️
    [loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [not loaded]    com.spotify.webhelper.plist [Click for support]
User Login Items: ℹ️
    iTunesHelper    Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
    iTunesHelper    UNKNOWN Hidden (missing value)
    readerAppHelper    Application Hidden (/Applications/Reader.app/Contents/Resources/readerAppHelper.app)
    uTorrent    Application (/Applications/uTorrent.app)
    Spotify    UNKNOWN (missing value)
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Internet Plug-ins: ℹ️
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    DivX Web Player: Version: 3.2.4.1250 - SDK 10.6 [Click for support]
    Flash Player: Version: 16.0.0.305 - SDK 10.6 Outdated! Update
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    Default Browser: Version: 537 - SDK 10.9
    OVSHelper: Version: 1.1 [Click for support]
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    SharePointBrowserPlugin: Version: 14.4.5 - SDK 10.6 [Click for support]
    DirectorShockwave: Version: 12.1.3r153 - SDK 10.6 [Click for support]
    JavaAppletPlugin: Version: Java 8 Update 31 Check version
3rd Party Preference Panes: ℹ️
    Flash Player [Click for support]
    Growl [Click for support]
    Java [Click for support]
Time Machine: ℹ️
    Time Machine not configured!
Top Processes by CPU: ℹ️
         5%    WindowServer
         2%    Activity Monitor
         1%    sysmond
         1%    AppleSpell
         0%    ps
Top Processes by Memory: ℹ️
    159 MB    com.apple.IconServicesAgent
    129 MB    Google Chrome
    103 MB    ocspd
    86 MB    Finder
    68 MB    Google Chrome Helper
Virtual Memory Information: ℹ️
    870 MB    Free RAM
    1.49 GB    Active RAM
    885 MB    Inactive RAM
    1.04 GB    Wired RAM
    802 MB    Page-ins
    0 B    Page-outs
Diagnostics Information: ℹ️
    Mar 25, 2015, 02:19:15 PM    /Library/Logs/DiagnosticReports/Spotify_2015-03-25-141915_[redacted].hang
    Mar 25, 2015, 02:06:37 PM    Self test - passed
    Mar 23, 2015, 07:36:46 PM    /Library/Logs/DiagnosticReports/uTorrent_2015-03-23-193646_[redacted].hang

The kernel is using excessive processor cycles. Below are some possible causes for the condition.
Throttling
When it gets high temperature readings from the hardware, or low voltage readings from the battery of a MacBook, the kernel may try to compensate by interrupting the processor(s) to slow them down and reduce power consumption. This condition can be due to:
☞ a buildup of dust on the logic board
☞ high ambient temperature
☞ a worn-out or faulty battery in a portable
☞ the malfunction of a cooling fan, a temperature sensor, a voltage sensor, or some other internal component
Note that if the problem is caused by a sensor, there may be no actual overheating or undervoltage.
If the computer is portable, test with and without the AC adapter connected. If kernel_task hogs the processor only on AC power, charging is causing the machine to heat up. That behavior may be normal for some models. CPU usage should drop when charging is complete.
Apple Diagnostics or the Apple Hardware Test, though not very reliable, is sometimes able to detect a fault. For more thorough hardware testing, make a "Genius" appointment at an Apple Store, or go to another authorized service provider.
If nothing is wrong with the hardware, then whatever you can do to improve cooling may help.
Installed software
User-installed software that includes a device driver or other kernel code may thrash the kernel. That category includes virtualization software, such as Parallels and VMware, as well as most commercial "anti-virus" products. Some system-monitoring applications, such as "iStat," can also contribute to the problem. You can test for this possibility by completely disabling or removing the software according to the developer's instructions, or starting in safe mode. Note, however, that disabling a system modification without removing it or testing in safe mode may not be as easy as you think.
Corrupt NVRAM or SMC data
Sometimes the problem is cleared up by resetting the NVRAM or the SMC.
External display
Connecting an external LCD display to some MacBook Pro models while the lid is open may cause this issue. If applicable, test by closing the lid or disconnecting the display. You might get better results with a newer LED display.

My iMac G5 powers on and runs fine for 20 to 60 minutes then locks up and all fans run at 100%

I thought my Hard drive had finally crashed and while replacing it (1TB Hitachi) I also replace the 512MB of RAM with 2 x 1Gb sticks of Crucial Memory. While re-loading 10.4 the system locked up again and the fans started running at 100%. I tried 3 more times and the same thing. With in 20 to 30 minutes the system locks up and the fans roar. I was told buy a friend the PSU had bad caps (all the MB caps look perfect) and I should replace it. I purchased a used PSU from Ebay and this time I got the entire OS installed and 8 of the first 9 undates and then, it did it again. I powered the iMac off and rebooted and now I get no bottom tool bar and in 50 to 60 minutes the same thing. Please help, I am certified on Dell and HP but this iMac is driving me nuts.

Take a closer look at the logic board caps. They dont have be totally blown open to be bad.
If you look closely and see that they are bulging just a small bit they are BAD.
These symptoms sound like bad logic board caps.

My macbook pro is lagging, freezing, and fan runs at full blast. How can I fix it?

When I start up my 2010 Macbook Pro now, the fan starts running as soon as the spinning gear appears below the apple logo, the boot up is insanely slow, the mouse doesn't track well with my trackpad movements, and trying to open programs often leads to a non-responsive program with the pinwheel of death spinning for minutes at a time. I try to shut it down (takes approx. 20 min. now) and when the screen goes black, the fan continues full blast. After that I can boot up the computer and it runs normally, but the whole process takes about 50 minutes longer than it should, especially with a relatively new SSD (~ 8 months old). Has anyone seen anything like this before or does anyone know how to fix it?
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EtreCheck version: 1.9.15 (52)
Report generated August 27, 2014 at 10:51:10 AM MDT
Hardware Information: ?
MacBook Pro (13-inch, Mid 2010) (Verified)
MacBook Pro - model: MacBookPro7,1
1 2.4 GHz Intel Core 2 Duo CPU: 2 cores
4 GB RAM
Video Information: ?
NVIDIA GeForce 320M - VRAM: 256 MB
System Software: ?
OS X 10.9.4 (13E28) - Uptime: 0 days 0:15:23
Disk Information: ?
OCZ-AGILITY4 disk0 : (256.06 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted>: 209.7 MB
Untitled (disk0s2) / [Startup]: 255.07 GB (21.57 GB free)
Recovery HD (disk0s3) <not mounted>: 784.2 MB
HL-DT-ST DVDRW GS23N
USB Information: ?
Apple Inc. Built-in iSight
Apple Internal Memory Card Reader
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Apple Inc. Apple Internal Keyboard / Trackpad
Configuration files: ?
/etc/hosts - Count: 49
Gatekeeper: ?
Mac App Store and identified developers
Kernel Extensions: ?
[not loaded] com.Perfect.Driver.SystemAudioRecorder (1.0.0 - SDK 10.9) Support
[not loaded] com.squirrels.airparrot.framebuffer (3 - SDK 10.8) Support
[not loaded] com.squirrels.driver.AirParrotSpeakers (1.8 - SDK 10.8) Support
[not loaded] xxx.qnation.PeerGuardian (1.1.9) Support
Problem System Launch Daemons: ?
[failed] com.apple.ucupdate.plist
Launch Daemons: ?
[not loaded] com.adobe.fpsaud.plist Support
[not loaded] com.adobe.SwitchBoard.plist Support
[not loaded] com.bombich.ccc.plist Support
[not loaded] com.google.keystone.daemon.plist Support
[not loaded] com.microsoft.office.licensing.helper.plist Support
[not loaded] com.parallels.desktop.launchdaemon.plist Support
[not loaded] xxx.qnation.PeerGuardian.kextload.plist Support
Launch Agents: ?
[not loaded] com.adobe.AAM.Updater-1.0.plist Support
[not loaded] com.adobe.CS5ServiceManager.plist Support
[not loaded] com.citrix.AuthManager_Mac.plist Support
[not loaded] com.citrix.ReceiverHelper.plist Support
[not loaded] com.citrix.ServiceRecords.plist Support
[not loaded] com.divx.dms.agent.plist Support
[not loaded] com.divx.update.agent.plist Support
[not loaded] com.google.keystone.agent.plist Support
[not loaded] com.hp.messagecenter.launcher.plist Support
[not loaded] com.parallels.desktop.launch.plist Support
[not loaded] com.parallels.DesktopControlAgent.plist Support
[not loaded] com.parallels.vm.prl_pcproxy.plist Support
User Launch Agents: ?
[not loaded] com.divx.agent.postinstall.plist Support
[not loaded] com.spotify.webhelper.plist Support
User Login Items: ?
Battery Time Remaining
Dropbox
Google Drive
Internet Plug-ins: ?
DirectorShockwave: Version: 12.0.7r148 - SDK 10.6 Support
o1dbrowserplugin: Version: 5.4.2.18903 Support
Google Earth Web Plug-in: Version: 6.1 Support
Default Browser: Version: 537 - SDK 10.9
OfficeLiveBrowserPlugin: Version: 12.3.6 Support
OVSHelper: Version: 1.1 Support
Silverlight: Version: 5.1.30514.0 - SDK 10.6 Support
FlashPlayer-10.6: Version: 14.0.0.145 - SDK 10.6 Support
DivXBrowserPlugin: Version: 2.2 Support
Flash Player: Version: 14.0.0.145 - SDK 10.6 Outdated! Update
iPhotoPhotocast: Version: 7.0
CitrixICAClientPlugIn: Version: 11.8.2 - SDK 10.7 Support
googletalkbrowserplugin: Version: 5.4.2.18903 Support
AdobePDFViewer: Version: 10.0.1 Support
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.4.3 - SDK 10.6 Support
JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version
Safari Extensions: ?
DivXHTML5
AdBlock-2
HoverZoom
Facebook Cleaner (Disabled)
1-ClickWeather
Facebook Improved
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 ?
Unity Web Player: Version: UnityPlayer version 2.6.1f3 Support
3rd Party Preference Panes: ?
Flash Player Support
Growl Support
Time Machine: ?
Skip System Files: NO
Auto backup: NO - Auto backup turned off
Time Machine not configured!
Top Processes by CPU: ?
      2% WindowServer
      1% ps
      0% SystemUIServer
      0% PluginProcess
      0% com.apple.WebKit.Networking
Top Processes by Memory: ?
213 MB Safari
152 MB com.apple.IconServicesAgent
78 MB Dock
66 MB PluginProcess
66 MB CalendarAgent
Virtual Memory Information: ?
318 MB Free RAM
1.64 GB Active RAM
1.38 GB Inactive RAM
421 MB Wired RAM
240 MB Page-ins
0 B Page-outs

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Battery discharging and fan running constantly after upgrading to Yosemite

MBP Early 2011. Just got back a month ago from Apple Support for video related issue. Almost EVERYTHING was replaced (logic board, video, ram, battery, cdrom, even my dented case. Thank you Apple!). Has run for a month flawlessly on Mavericks. Upgraded to Yosemite 48 hours ago. Light on magsafe stays green. Battery indicator icon states Battery is not charging (currently at 75% and falling). Power source: Power adapter. While plugged in and operating, battery is discharging and fan constantly running. If I shut down, mag safe light turns yellow and battery will charge to 100%. If left plugged in and running in Yosemite, battery will drain all the way down.
Have tried:
Rebooting, putting into sleep mode, shutting down completely, unplugging and replugging power supply from wall and MBP while on and off, resetting SMC with Shift Control Option Power keys/buttons.
No third party battery or power apps installed, fresh load of Mavericks from factory when I got it back. This feels like something with the new energy management in Yosemite isn't working as expected to me. Thoughts & suggestions appreciated!

UPDATE: Resolved!
Disabled all login items but problem persisted on normal boot. Resetting SMC and PRAM had no effect. After booting into Safe Boot, problem did not exist. Looked in console logs and saw this right as problem started to occur:
10/20/14 6:49:07.004 PM com.apple.xpc.launchd[1]: (com.gspy.MO3V2Daemon[93967]) Could not find and/or execute program specified by service: 2: No such file or directory: /Library/MO3V2/MO3V2Daemon.app/Contents/MacOS/MO3V2Daemon
This pertains to the Steelseries WoW MMO gaming mouse. Ran the uninstall.command from Applications for this mouse software and rebooted. Fixed.
Light on MagSafe connector is orange, battery shows as charging, fan is not running constantly. I can't begin to understand how this would effect the battery charging functions but, after uninstalling this, the problem was resolved. Hope this will help someone else.

PMSET Uses 50% CPU Keeping Fan Running

I am having the same problem as described in this (archived) thread (no solution):
http://discussions.info.apple.com/thread.jspa?messageID=11226077&#11226077
The only thing that appears to 'fix' pmset (at least for a while) is a reboot. This is not a permanent fix since, as time goes by, pmset eventually starts kicking up a fuss and using 50% cpu for regular periods of time--enough to keep the fan running pretty good.
Also, it appears that if the machine goes to sleep/hibernates the pmset issue raises its ugly head sooner.
If I'm running on battery, this seriously impacts battery life; which is rather ironic (not to mention frustrating) since pmset is supposed to be properly performing "power management".
I did try resetting the SMC (http://support.apple.com/kb/HT3964) at one point, but alas there was no lasting remedy.

For some reason, it occurred to me that I should try disabling bluetooth, which I did shortly after posting this issue. I have not seen abnormal pmset behaviour since then.
Since I have a bluetooth keyboard and mouse this would not be an ideal setup for me to run with at all times.
Any ideas out there folks?

Cpu and fans running at 100%

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