Will not boot up and fans run at high speed

will not boot up and fans run at high speed

after much head scratching I ran the hardware test disk from cd. The test showed a memory issue I eliminated the faulty one systematically. So it wasn't a hard drive or software problem in the end it was faulty memory. What was misleading was the computer telling me there was a fault on the hard drive. The machine works fine now. Thanks to people's comments I learned a bit more about the G5 that helped eliminate probable causes

Similar Messages

Early 2008 MacBookPro keyboard backlight off and fans run at high speed

Hi!
I wrote from Turkey.
My Early 2008 MacBookPro 2.40 ghz 4 gb Ram OSX Mavericks machine's keyboard backlight off and fans run at high speed; it seems an exact smc resetting problem.
So i tried the 2 ways of SMC restting procedure; both battery you can move and not, but nothings changed on the situation..
On the way for removable battery; nothing changed but on the way for umremovable battery way; keyboard backlight flashes and gone, but fans are at high speed not changed. So nothing changed.
What can i do right now? i'll wait for your advices
Thanks

Your Mac may need a new PRAM battery. Once it is over 4 years old, that often is needed.

Mac running slow and fan running at high speed

MacPro1,1, osx 10.7.5, 8gb ram
My mac is running slow and fan running at high speed & very loud. On MRI diagnostic it passes everything except this error "CPU Proximity: Can't Read ". I did low level configuration and still having issue with unit.

See Below.
Mac running slow and fan running at high speed

Satellite Pro M10 will not boot again and comes up with the error message

My Toshiba Satellite Pro M10 notebook will not boot again and comes up with the error message "load error" when I push the power button.
The problem arised after installation of "symantec system works" and trying to restart windows XP professional to make the installed program executable.
What can I do to get the notbook restart again?

Hi everyone
If you cannot acces to the boot menu by pressing F8 you can try to recover the the master boot record from Windows Xp professional installation Cd, to do this:
Attention: don't run these commands if you have more than one operating systems running in your laptop.
Boot from Windows Xp installation cd
Choose repair installation from console by pressing "C" key.
A console will open asking you for administrator password, insert the password and press enter.
Run de command: FIXMBR (It will write a new boot record)
Run de command: FIXBOOT (It will write a new boot file)
Restart the laptop and now windows should start without problems.
Regards

Apple Macbook 13.3" Laptop-Black 2008 2.4GHz Intel Core 2 Duo will not boot up and instead I get a grey screen with a folder and a question mark over it.

My Apple Macbook 13.3" Laptop-Black 2008 2.4GHz Intel Core 2 Duo will not boot up and instead I get a grey screen with a folder and a question mark over it. I've tried Option key, and Control S keys and it still will not boop up. Can anyone help?

If you are running Snow Leopard:
Reinstall OS X without erasing the drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU 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 DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
If you are running Lion or later:
Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
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. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.
Reinstall Mountain Lion or Mavericks
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it isthree times faster than wireless.

It rained in my window last night, on my power strip. My macbook adaptor (charger) and iphone adaptor were both plugged into the strip. The power strip is dead. Iphone is fine. Macbook will not boot up and charger light doesn't go on.

It rained in my window last night, on my power strip. My macbook adaptor (charger) and iphone adaptor were both plugged into the strip. The power strip is dead. Iphone is fine. Macbook will not boot up and charger light doesn't go on. I borrowed another charger and still no luck. What should I do? (Charger wasn't plugged into Macbook until I dried it off.)

Spill Cleaning
And, don't think that just because it was two teaspoons and not a glassful that there is a difference.
Some liquid has just spilled into your Mac. What should you do?
Do
Immediately shut down the computer and unplug the power cord.
Remove the computer's battery (if you can)
Disconnect any peripherals (printers, iPods, scanners, cameras, etc.)
Lay the computer upside down on paper towels to get as much liquid as possible to drip out.
Note what was spilled on your Mac.
Bring the computer into an Apple store or AASP as soon as possible.
Don't
Don't try to turn it back on. Liquids can help electrical current move about the components of your Mac in destructive ways.
Don't shake the computer (this will only spread the liquid around).
Don't use a hair dryer on it (even at a low setting a hair dryer will damage sensitive components).
Do not put in a bag of rice in as much as rice will get into the ports and optical drive and do further damage.

Late 2014 iMac 5K running unusually slowly with fans running at high speed

Problem description:
iMac 5K
The computer is running unusually slowly although it is not experiencing high CPU utilization.
The computer's fans run at high speed although the computer is not experiencing heavy usage.
Apple Diagnostics points to SMC problem.
SMC and PRAM resets have not worked.
See Etre Report below.
Thanks for help.
Herbie49
EtreCheck version: 2.1.8 (121)
Report generated 30. März 2015 07:32:40 MESZ
Download EtreCheck from http://etresoft.com/etrecheck
Hardware Information: ℹ️
    iMac (Retina 5K, 27-inch, Late 2014) (Technical Specifications)
    iMac - model: iMac15,1
    1 4 GHz Intel Core i7 CPU: 4-core
    32 GB RAM Upgradeable
        BANK 0/DIMM0
            8 GB DDR3 1600 MHz ok
        BANK 1/DIMM0
            8 GB DDR3 1600 MHz ok
        BANK 0/DIMM1
            8 GB DDR3 1600 MHz ok
        BANK 1/DIMM1
            8 GB DDR3 1600 MHz ok
    Bluetooth: Good - Handoff/Airdrop2 supported
    Wireless: en1: 802.11 a/b/g/n/ac
Video Information: ℹ️
    AMD Radeon R9 M295X - VRAM: 4096 MB
        iMac spdisplays_5120x2880Retina
System Software: ℹ️
    OS X 10.10.2 (14C1514) - Time since boot: 0:31:53
Disk Information: ℹ️
    APPLE SSD SM0512F disk1 : (500,28 GB)
        EFI (disk1s1) <not mounted> : 210 MB
        Macintosh SSHD (disk1s2) / : 499.42 GB (251.32 GB free)
        Recovery HD (disk1s3) <not mounted> [Recovery]: 650 MB
    Samsung SSD 840 EVO 750GB disk0 : (750,16 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Herbies Daten (disk0s2) /Volumes/Herbies Daten : 749.30 GB (299.14 GB free)
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
USB Information: ℹ️
    Apple Inc. BRCM20702 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple, Inc. Keyboard Hub
        Apple Inc. Apple Keyboard
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Anywhere
Kernel Extensions: ℹ️
        /Applications/Toast 11 Titanium/Spin Doctor.app
    [not loaded]    com.hzsystems.terminus.driver (4) [Click for support]
        /Library/Application Support/Symantec/AntiVirus
    [not loaded]    com.symantec.kext.SymAPComm (11.1.2f18) [Click for support]
        /System/Library/Extensions
    [not loaded]    com.Logitech.Control Center.HID Driver (2.4.0) [Click for support]
    [not loaded]    com.symantec.kext.internetSecurity (1.3.2f5) [Click for support]
    [not loaded]    com.symantec.kext.ips (3.2f8) [Click for support]
        /Users/[redacted]/Library/Services/ToastIt.service/Contents/MacOS
    [not loaded]    com.roxio.TDIXController (2.0) [Click for support]
Startup Items: ℹ️
    ProTec6b: Path: /Library/StartupItems/ProTec6b
    Startup items are obsolete in OS X Yosemite
Launch Agents: ℹ️
    [not loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [loaded]    com.adobe.CS5ServiceManager.plist [Click for support]
    [running]    com.symantec.uiagent.application.plist [Click for support]
    [not loaded]    com.teamviewer.teamviewer.plist [Click for support]
    [not loaded]    com.teamviewer.teamviewer_desktop.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.bombich.ccc.plist [Click for support]
    [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
    [loaded]    com.symantec.avscandaemon.plist [Click for support]
    [running]    com.symantec.diskMountNotify.plist [Click for support]
    [failed]    com.symantec.MissedTasks.plist [Click for support]
    [loaded]    com.symantec.navapd.plist [Click for support]
    [loaded]    com.symantec.navapdaemonsl.plist [Click for support]
    [loaded]    com.symantec.Sched503-1.plist [Click for support]
    [loaded]    com.symantec.Sched505-3.plist [Click for support]
    [running]    com.symantec.sharedsettings.plist [Click for support]
    [running]    com.symantec.symdaemon.plist [Click for support]
    [failed]    com.symantec.symSchedDaemon.plist [Click for support]
    [not loaded]    com.teamviewer.teamviewer_service.plist [Click for support]
    [loaded]    de.meilenstein.MSTFirstRunInstaller.plist [Click for support]
User Launch Agents: ℹ️
    [loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [loaded]    com.adobe.ARM.[...].plist [Click for support]
    [failed]    com.adobe.ARM.[...].plist [Click for support] [Click for details]
    [loaded]    com.adobe.ARM.[...].plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [loaded]    de.starface.STARFACE-Client.plist [Click for support]
    [running]    ws.agile.1PasswordAgent.plist [Click for support]
User Login Items: ℹ️
    Notizzettel    Programm Hidden (/Applications/Stickies.app)
    Adobe Reader    Programm (/Applications/Adobe Reader.app)
    Dropbox    Programm (/Applications/Dropbox.app)
    SpyderUtility    Programm (/Applications/Datacolor/Spyder4Pro/Support/SpyderUtility.app)
    PopChar    Programm (/Applications/PopChar.app)
    STARFACE Client    Programm (/Users/[redacted]/Desktop/STARFACE Client.app)
Internet Plug-ins: ℹ️
    Google Earth Web Plug-in: Version: 7.0 [Click for support]
    Default Browser: Version: 600 - SDK 10.10
    AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7 [Click for support]
    Flip4Mac WMV Plugin: Version: 3.2.0.16   - SDK 10.8 [Click for support]
    OfficeLiveBrowserPlugin: Version: 12.2.8 [Click for support]
    AdobePDFViewerNPAPI: Version: 10.1.5 [Click for support]
    FlashPlayer-10.6: Version: 17.0.0.134 - SDK 10.6 [Click for support]
    Silverlight: Version: 5.1.10411.0 - SDK 10.6 [Click for support]
    Flash Player: Version: 17.0.0.134 - SDK 10.6 [Click for support]
    QuickTime Plugin: Version: 7.7.3
    iPhotoPhotocast: Version: 7.0
    SharePointBrowserPlugin: Version: 14.4.8 - SDK 10.6 [Click for support]
    AdobePDFViewer: Version: 10.1.5 [Click for support]
    JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
User internet Plug-ins: ℹ️
    RealPlayer Plugin: Version: Unknown
Safari Extensions: ℹ️
    1Password
    ExifExt
Audio Plug-ins: ℹ️
    DVCPROHDAudio: Version: 1.2
3rd Party Preference Panes: ℹ️
    Flash Player [Click for support]
    Flip4Mac WMV [Click for support]
    Growl [Click for support]
    Norton\nQuickMenu [Click for support]
Time Machine: ℹ️
    Skip System Files: NO
    Mobile backups: OFF
    Auto backup: YES
    Volumes being backed up:
        Macintosh SSHD: Disk size: 499.42 GB Disk used: 248.10 GB
    Destinations:
        Backups [Network]
        Total size: 6.00 TB
        Total number of backups: 39
        Oldest backup: 2015-01-31 05:27:48 +0000
        Last backup: 2015-03-27 20:28:54 +0000
        Size of backup disk: Excellent
            Backup size 6.00 TB > (Disk size 499.42 GB X 3)
Top Processes by CPU: ℹ️
         5%    WindowServer
         0%    Dropbox
         0%    SymDaemon
Top Processes by Memory: ℹ️
    241 MB    Mail
    206 MB    Finder
    172 MB    Safari
    137 MB    Stickies
    137 MB    WindowServer
Virtual Memory Information: ℹ️
    29.20 GB    Free RAM
    2.79 GB    Active RAM
    721 MB    Inactive RAM
    1.64 GB    Wired RAM
    1.34 GB    Page-ins
    0 B    Page-outs
Diagnostics Information: ℹ️
    Mar 30, 2015, 06:58:02 AM    /Library/Logs/DiagnosticReports/deleted_2015-03-30-065802_[redacted].crash
    Mar 30, 2015, 06:55:24 AM    Self test - passed

First uninstall your antivirus. Use only a vendor-provided uninstaller or uninstallation instructions. Never remove files by hand. Never use an "app zapper".
If that doesn't fix it, take it back to Apple for service.

Resolution changed on remote display. Fan runs at HIGH speed.

Today, for no reason, resolution changed on remote display. Option needed no longer shown. Tried SMC and PRAM resets. Now resolution on the MAC AIR is messed up (not full screen) and the fan runs at HIGH speed. This is a sudden change. Have been using the MAC Air in this exact configuration for 2 years. Tried restart/reset of monitor. Nothing. Did resets on MAC and screen changed there. Also the fan runs at high speed.

Hi donaldfromsaint charles,
It seems you are experiencing an issue with displays and their resolutions. The following article provides troubleshooting guidance which may help you find a solution:
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
Thank you for contributing to Apple Support Communities.
Take care,
Bobby_D

Macbook Pro Fans Running At High Speed

My MBP 17" CoreDuo 2.16ghz came back from having the Logic Board replaced at the weekend. All is well except that now the fans run at high speed all the time.
I have installed SMCFanControl, and the current readings are 45 / 113 degrees and the fans are running at 5500 rpm. I took the machine back to the Apple store but when I was there the fans didn't go above 3000rpm (typical huh?). It's nice that the case is now a lot cooler than it used to be but the fans seem very loud to me.
The question is, is this normal? I am not running anything very heavy duty at the moment. Any ideas?
Thanks
Matt

I tend to agree with Ned on SMC fan control (that it arguably causes more problems than it solves).
I had a similar problem with mine recently having the fans run constantly and at full speed. My temperatures never approached yours, but it would fail to go to sleep etc.
I would start with the advice Ned gave you. This is the same path Apple Care led me down in trying to resolve the issue.
Ultimately though I had to do an archival install of the operating system. It is non-destructive so it wasn't a big deal. I just had to slowly re-install patches and observe behavior. Oddly I was able to patch back up to 10.4.9 without the issue re-occuring so the root cause is still a mystery to me.
edit
Patch gone bad maybe? I tried re-applying the 10.4.9 combo before attempting the archival install route with no success. I know that has been suggested many times. Apparenty it solves many issues, but it failed to solve mine.

Fan running at high speed (iMac 2011)

I'm using an iMac mid-2011 model, 21.5". For the past few weeks, I'm facing an issue where the fan runs at high speed (>3900 rpm). This generally happens when I use the mac for more than an hour with simple tasks like browsing, checking mails, working on word / powerpoint, etc. If I play a game or watch a video, it happens faster in 15 - 30 mins.
I've tried SMS reset several times but it did not help.
I also ran the apple hardware test (extended testing) and got the following error:
4SNS / 1 / 40000000 : TS2p - 121.250
Could anyone help me understand what this error means?
Thanks.

There is a sensor error. That is most likely why you are experiencing the problem. Take it in for service.

Computer will not boot up but fan will turn on and stay on.

I have a Gateway and I did not have enough memory. I bought 1Gig to give it enough memory to run the basic systems. I added the memory to the slot in the hard drive and now it will not boot up. The fan just turns on and runs. I took out the new memory and it does the same thing. No working computer. Need help on what I should do besides Punt.
Thanks,
ZCDJSouza

First and foremost, recheck all internal connections to make sure you didn't bump something loose while replacing the RAM. I had the exact same thing happen to me once before only to find that I had accidentally loosened the cable to the hard drive.
*I am a BB employee but my opinions are my own.*

T43 Will not boot. Only Fan is running. Blank screen Any ideas?

Will not boot and blank screen. Only Fan is running. Blank screen Any ideas?
Solved!
Go to Solution.

if you connect an external screen does anything appears?
this is most likely a GPU failure.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

My operating system will not boot up and I have a black screen

My laptop just went black as if it was in stnd by mode yet now will not boot up. It gets to the wirl of the fans and the cd drive turning but that is it. I m running the BIOS Test and nothing is showing up. the screen is black with a single dash flashing. can someone help me please as my tech is not that good

Hi @RK3
Welcome to the HP Forums!
It is a great place to find answers and information!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
I understand that your display just went black. If you restart the display remains black with a blinking cursor, but with no error messages. You do hear the fan and hard drive spin up.
Here are two links to assist you with this difficulty.
Troubleshooting problems with notebook displays (Windows 8, Windows 7)
Troubleshooting Black Screen Displays with No Error Messages During Startup or Boot
Best of Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

My powermac dual g5 will not boot up and/or wake up from being asleep

My power mac will not boot up. I hit the power button and it mades the first sound but not the boot sound. My keyboard will not light up or turn on. I replaced the pram battery I hought that might help. It didn't. I am not sure hot to open the disc drive w/o the keyboard working. I am not sure what to do next. I did not hear any clicking from the hard drive. I hope my hard hasn't died. I am running os 10.4.9 Thanks!

If you can get an external 3,5" HDD enclosure, I'd take out the disk(s) that are not backed up, and back them up first on another computer. (You actually should have had bootable backups in the first place, but it's never too late to learn, you learn the hard way ;-)
I could be wrong but I still have a strong feeling that it's a PSU problem.
Good news: if your fans still work, the PSU is not blown (yet). I suspect that dust could cause the symptoms you're seeing.
You have access to an air compressor? Preferably one that has a moist filter. (Canned air is way too expensive, but an option if you don't know anybody with a decent air compressor. Pressure of a can is lower too)
I'd first try to blow it out without disassembly. The PSU is on the bottom, so blow through the frontgrid at the bottom.
You won't be able to get all the dust out, but it might work allready.
I recommend you do this outside, and be surprised by the huge dustcloud that comes out, and be glad you didn't do it in your house.
If that didn't work, I would disassemble your G5, take the PSU out, blow it out more thoroughly, by opening the case of the PSU.
You will find links to guides how to do this in the thread I mentioned in my previous post.

Mac Pro will not boot - HD and Machine are fine.

Greetings, and thank you in advance for your wisdom.
I have a 12-core Mac Pro, and she has been running like a dream. Once a month I run Onyx. Yesterday I did the same and upon reboot I got the grey apple screen and the spinning progress wheel that never stops spinning.
1. I repaired the HD via Disk Utility. All is fine.
2. The contents of the start-up drive are accessible - so the drive itself is not physically damaged.
3. I installed a new HD and made a copy of this Start-up disk via the Disk Utility. It will not boot from this drive as well.
4. I installed Snow Leopard (still using this) on the new drive to make sure the computer was happy. It fires up fine.
5. Everything is disconnected from the Mac Pro
So, I have obvious, and idiotically damaged the start-up disk using Onyx (assumption).
My life would be much better knowing I could do something that would enable me to boot from my current start-up and that's where I seek your wisdom.
Another question would be: If the above is not possible, if I install a fresh OS on the new drive, and then begin to replace all of the folders from the old drive (applications, library, etc.) will I be able to access my files as I did before. My issue is that I use this for music production, and there are literally close to 100 plugins that all have been registered. Going back through that process again would be days of labor, as some of these were purchases years ago. Tracking down serials would be a task. I think you understand.
So any advice that might prevent me from having to do as I said above will be wonderful.
Thank you all so much.
Lance

Under some circumstances, you may need to reinstall Mac OS X. You can reinstall Mac OS X while keeping your files and user settings intact.
from:
Mac OS X 10.6: Reinstalling Mac OS X
If your Hardware is functioning correctly, and your disk has no un-repaired Directory problems [Hint: run Disk Utility ( Repair Disk ) first] then re-installing Mac OS X modifies ONLY the files that are part of Mac OS X. Your Added Applications, User files (which contain preferences and serial numbers) are not supposed to be touched.

Will not boot up and fans run at high speed

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