2008 24" 8800 GS 512MB iMac crashes / graphics glitches even with CD boot

Could it be my graphics card is bad on my iMac? It is a 2008 top end model with the 8800 GS 512MB card. I thought maybe my drive was going bad but since it is acting up even when I boot from my CD, I'm not sure...
- I've done all the basics such as the PRAM reset and also disconnecting power and holding down the power button for 5 seconds.
- What appears to be happening is that the computer is indeed starting up in both safe mode and normal mode & CD mode but the screen freezes. It usually freezes on the gray apple screen that has the sun circle thing below it. (Whatever that is called) That thing will freeze- the "rays" that light up will stop, but I can hear the hard drive still going as if the boot-up continues. What's more is that if I wait a bit, letting it continue the boot-up after the screen freezes, I can press the power button briefly and it will "sleep". I can even hit a key on the keyboard and here the optical drive power up and if I plug in a USB drive in, the light will come on. However, the screen stays black... or it normal for this to happen?
- I have had some strange graphics issues with all this. Sometimes when the screen freezes there will be chunks of pixels all over it. One time it really went odd and there was a rainbow effect on the screen when it froze.
- I have made it into safe mode twice, but most attempts fail. I have made it into CD mode once and did the disk repair (with no issues) and the permissions repair -- it froze towards the end of that. Subsequent attempts to enter CD mode would end up in the screen freezing. I'm sure I could get into either or even a full start-up with enough attempts.
- This all happened after I upgraded to 10.6.7 but I don't see others with this issue so I'm guessing coincidence...
Any idea on how I might test this thing out to confirm the problem... or overcome it?

Update: Just tried CD mode again, made it to the install part to resinstall OSX and then the screen went whacko again with what I called the rainbow effect. It isn't exactly that (rainbow) but it is like a huge colorful blotch flashing on the screen. I can see the Install Mac OS X through it all but can't do anything.

Similar Messages

Graphics glitches occurring with the GeForce 9400M?

Has anyone seen the same type of graphics glitches occurring with the GeForce 9400M in the new MacBooks that occurred in the MacBook Pros with GeForce 8600M GT?
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Hi there,
the same issue on my new MBP Late 2008. First, it happens in Safari, then I tried Firefox and there it was too. I switched the graphics to the second GPU (the better) and it seems the problem were solved. Back on the mobile GPU it never happened again.
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Crashes, graphics glitches, and more crashes when editing video clips

Can't for the life of me figure out why PE keeps crashing on me, so I'm here for help.
My system consists of a i7-970 hexacore, 6GB ram, 1x 500GB os drive, 3x500gb raid 0 drives (this is where my video clips are stored), 2x GeForce GTX460 video cards.
OS is Windows 7 Profressional 64 bit.
The video files I work with are generally in the 50-200GB size.
A little background - the videos that I am working with are recordings from Battlefield Bad Company 2 that I have recorded with some capture software called Dxtory.
I record at 1920x1080 at 60 FPS to avi files. The avi files are using the "xtor" codec (Dxtory's own codec)
[ISFT] DxtoryCore ver2.0.0.101
[ISRC] Video:YUV420 Audio:Speakers (Realtek High Definition Audio)
Audio is PCM 192000Hz recorded in stereo.
Let me start by saying I have not had trouble with this before until I started recording the videos at 60 FPS. 30 FPS worked ok (some crashes here and there, but they were bearable), but the frequent crashes started happening when I started working with the 60 FPS videos, done mainly so I could play around with slowing the clips down, etc.
Sometimes I can open and edit clips just fine.
Recently, a project that I'm working on is crashing when I try putting two different clips from different files together on the time line. I managed to get it to work once, and saved the project after that. Then, PE crashed randomly and when trying to reopen the project, it just crashes and won't let me get any further.
I should mention the graphics glitches as well - occasionally (especially when previewing video clips before adding them to the timeline) after I close the preview window, the graphics in PE will glitch out, causing random lines to appear in certain areas, graphics to stack on top of eachother and freeze up, and sometimes I can click on the "play" button in the main project window and hear everything start playing, but the graphics are completely screwed up to the point where I can't view the video or hit the pause button.
All of my computer hardware is fine, all drivers, and PE, are up to date.
Can someone please help me figure out what is going on? I'll be happy to provide any more information that might help out.

The most likely issue is the codec that your program is using the create your video. It's apparently not compatible with Premiere Elements.
This often happens also when people try to record their on-screen video with FRAPS.
You'll see lots of discussions on this issue in the Premiere Pro forum. However, it's even more pronounced in Premiere Elements, which is designed to work almost exclusively with camcorder video.
Some video programs are a little more versatile with this type of video. Some people have found Corell's Video Studio better at handling these non-traditonal formats.
But I did a Google search on Dxtory editing and couldn't find any information on it.
Sorry I can't offer a solution. But I can pretty much assure you that Premiere Elements isn't it. sorry.

Outlook 2011 on my iMac crashing after upgrading iPad with iCloud and syncing

Plugged in my iPad to iMac. It asked to upgrade iPad to 5.0.1. Install seemed to go fine. I then synced calendars and contacts thru iTunes. When I later restarted iMac (Snow Leopard 10.6.8) Outlook 2011 crashed as soon as messages window opened. Other Office products-Word and Excel still work fine.
I Time Machined my Database-same crash. Time machined the entire Outlook application-same crash.
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It isn't possible unless your Mac is running OS X 10.7.5 (Lion) or higher. Also, you cannot sync iCloud contacts and calendars with Outlook 2011 for Mac, it that's what you have. It will only sync these with the built-in OS X contacts and calendars apps. (It will sync contacts and calendars with Outlook 2007 or higher for Windows.)

IMac crashes to black screen with white prohibitory sign!

My iMac (late 2013) i5 version keeps crashing about once a day. Every time I come home from work, the screen is black with a white prohibitory sign displayed. I'm unable to do anything and have to hold the power button down to restart it. It seems to work fine after a restart, but randomly crashes to this same screen. I've never actually seen it crash because it only happens when I'm not using the iMac. It seems like it might be something with power management or screen saver. Unfortunately, I can't seem to narrow it down as I've tried to change all the settings and it still happens. I really don't want to do a complete re-install of Yosemite, but it seems like that's the only thing left to try. Can someone please help?

EtreCheck version: 2.1.8 (121)
Report generated February 19, 2015 at 11:09:18 PM CST
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.
Hardware Information: ℹ️
    iMac (27-inch, Late 2013) (Technical Specifications)
    iMac - model: iMac14,2
    1 3.2 GHz Intel Core i5 CPU: 4-core
    24 GB RAM Upgradeable
        BANK 0/DIMM0
            8 GB DDR3 1600 MHz ok
        BANK 1/DIMM0
            8 GB DDR3 1600 MHz ok
        BANK 0/DIMM1
            4 GB DDR3 1600 MHz ok
        BANK 1/DIMM1
            4 GB DDR3 1600 MHz ok
    Bluetooth: Good - Handoff/Airdrop2 supported
    Wireless: en1: 802.11 a/b/g/n/ac
Video Information: ℹ️
    NVIDIA GeForce GT 755M - VRAM: 1024 MB
        iMac 2560 x 1440
System Software: ℹ️
    OS X 10.10.2 (14C109) - Time since boot: 3:29:12
Disk Information: ℹ️
    APPLE SSD SD0128F disk0 : (121.33 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Boot OS X (disk0s3) <not mounted> : 134 MB
        Macintosh HD (disk2) / : 3.11 TB (1.80 TB free)
            Core Storage: disk0s2 120.99 GB Online
            Core Storage: disk1s2 3.00 TB Online
    APPLE HDD ST3000DM001 disk1 : (3 TB)
        EFI (disk1s1) <not mounted> : 210 MB
        Recovery HD (disk1s3) <not mounted> [Recovery]: 650 MB
        Macintosh HD (disk2) / : 3.11 TB (1.80 TB free)
            Core Storage: disk0s2 120.99 GB Online
            Core Storage: disk1s2 3.00 TB Online
USB Information: ℹ️
    VIA Labs, Inc. USB3.0 Hub
    Apple Inc. BRCM20702 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Inc. FaceTime HD Camera (Built-in)
    VIA Labs, Inc. USB2.0 Hub
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Anywhere
Kernel Extensions: ℹ️
        /Applications/Elgato Video Capture.app
    [not loaded]    com.elgato.driver.Pluto2 (1.1) [Click for support]
        /Applications/Toast 11 Titanium/Toast Titanium.app
    [not loaded]    com.roxio.TDIXController (2.0) [Click for support]
        /Applications/Wireless Auto Import.app
    [not loaded]    com.sony.driver.dsccamFirmwareUpdaterType00 (1 - SDK 10.5) [Click for support]
        /Library/Extensions
    [not loaded]    com.leapfrog.driver.LfConnectDriver (1.11.1 - SDK 10.10) [Click for support]
    [not loaded]    org.virtualbox.kext.VBoxDrv (4.2.18) [Click for support]
    [not loaded]    org.virtualbox.kext.VBoxNetAdp (4.2.18) [Click for support]
    [not loaded]    org.virtualbox.kext.VBoxNetFlt (4.2.18) [Click for support]
    [not loaded]    org.virtualbox.kext.VBoxUSB (4.2.18) [Click for support]
        /System/Library/Extensions
    [not loaded]    com.Belcarra.iokit.USBLAN_netpart (3.1.1 - SDK 10.6) [Click for support]
    [not loaded]    com.Belcarra.iokit.USBLAN_usbpart (3.1.1 - SDK 10.6) [Click for support]
    [loaded]    com.Cycling74.driver.Soundflower (1.6.6 - SDK 10.6) [Click for support]
    [not loaded]    com.RemoteControl.USBLAN.usbpart (3.1.1 - SDK 10.7) [Click for support]
    [not loaded]    com.dvdfab.kext.fabio (1) [Click for support]
    [not loaded]    com.leapfrog.codeless.kext (2) [Click for support]
    [not loaded]    com.makemkv.kext.daspi (1) [Click for support]
    [not loaded]    com.pctools.iantivirus.kfs (1.0.1) [Click for support]
    [not loaded]    com.rogueamoeba.InstantOn (6.0.3 - SDK 10.6) [Click for support]
    [not loaded]    com.roxio.BluRaySupport (1.1.6) [Click for support]
    [not loaded]    com.vara.driver.VaraAudio (1.0.2) [Click for support]
        /System/Library/Extensions/InstantOn.kext/Contents/PlugIns
    [not loaded]    com.rogueamoeba.InstantOnCore (6.0.3 - SDK 10.6) [Click for support]
Startup Items: ℹ️
    VirtualBox: Path: /Library/StartupItems/VirtualBox
    Startup items are obsolete in OS X Yosemite
Launch Agents: ℹ️
    [not loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [failed]    com.amazon.sendtokindle.launcher.plist [Click for support]
    [loaded]    com.citrix.AuthManager_Mac.plist [Click for support]
    [running]    com.citrix.ServiceRecords.plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [loaded]    com.oracle.java.Java-Updater.plist [Click for support]
    [running]    com.sony.WirelessAutoImportLauncher.agent.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [not loaded]    com.adobe.SwitchBoard.plist [Click for support]
    [running]    com.backblaze.bzserv.plist [Click for support]
    [not loaded]    com.barebones.textwrangler.plist [Click for support]
    [running]    com.cleverfiles.cfbackd.plist [Click for support]
    [loaded]    com.google.keystone.daemon.plist [Click for support]
    [loaded]    com.leapfrog.connect.authdaemon.plist [Click for support]
    [loaded]    com.leapfrog.connect2.authdaemon.plist [Click for support]
    [not loaded]    com.mac.adg.SquidMan.plist [Click for support]
    [not loaded]    com.macserve.ppp.l2tp.plist [Click for support]
    [not loaded]    com.macserve.ppp.pptp.plist [Click for support]
    [failed]    com.magican.castle.plist [Click for support]
    [loaded]    com.oracle.java.Helper-Tool.plist [Click for support]
    [loaded]    com.oracle.java.JavaUpdateHelper.plist [Click for support]
    [loaded]    jp.co.canon.MasterInstaller.plist [Click for support]
User Launch Agents: ℹ️
    [running]    com.backblaze.bzbmenu.plist [Click for support]
    [running]    com.leapfrog.connect.monitor.plist [Click for support]
    [running]    com.leapfrog.connect2.lflauncher.plist [Click for support]
    [not loaded]    jp.co.canon.Inkjet_Extended_Survey_Agent.plist [Click for support]
    [failed]    ws.agile.1PasswordAgent.plist [Click for support] [Click for details]
User Login Items: ℹ️
    iTunesHelper    Application Hidden (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
    Dropbox    Application Hidden (/Applications/Dropbox.app)
    Canon IJ Network Scanner Selector EX    Application Hidden (/Applications/Canon Utilities/IJ Network Scanner Selector EX/Canon IJ Network Scanner Selector EX.app)
    Google Drive    Application Hidden (/Applications/Google Drive.app)
    Plex Media Server    Application Hidden (/Applications/Plex Media Server.app)
    Music Manager    UNKNOWN Hidden (missing value)
    Music Manager    Application Hidden (/Users/[redacted]/Library/PreferencePanes/MusicManager.prefPane/Contents/Helpe rs/MusicManagerHelper.app)
Internet Plug-ins: ℹ️
    EPPEX Plugin: Version: 10.0 [Click for support]
    Flash Player: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    OfficeLiveBrowserPlugin: Version: 12.2.0 [Click for support]
    LogMeInSafari32: Version: 1.0.586 [Click for support]
    googletalkbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
    AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7 [Click for support]
    iPhotoPhotocast: Version: 7.0
    RayV: Version: 2.0.3.1 [Click for support]
    DirectorShockwave: Version: 11.6.4r634 [Click for support]
    QuickTime Plugin: Version: 7.7.3
    LogMeInSafari64: Version: 1.0.586 [Click for support]
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    CitrixICAClientPlugIn: Version: 1.0 - SDK 10.6 [Click for support]
    GarminGpsControl: Version: 4.0.4.0 Release - SDK 10.6 [Click for support]
    DivXBrowserPlugin: Version: 2.0 [Click for support]
    Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Click for support]
    LogMeIn: Version: 1.0.586 [Click for support]
    Google Earth Web Plug-in: Version: 6.0 [Click for support]
    LogitechHarmony: Version: 2.0 - SDK 10.7 [Click for support]
    Default Browser: Version: 600 - SDK 10.10
    Flip4Mac WMV Plugin: Version: 3.0.0.126   - SDK 10.8 [Click for support]
    o1dbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
    JavaAppletPlugin: Version: Java 8 Update 31 Check version
    JoostPlugin: Version: 0.14.8 [Click for support]
Safari Extensions: ℹ️
    1Password
    Add To Amazon Wish List
    FastestTube
    Evernote Web Clipper
    Pin It Button
3rd Party Preference Panes: ℹ️
    Backblaze Backup [Click for support]
    Citrix ShareFile Sync [Click for support]
    DivX [Click for support]
    Flash Player [Click for support]
    Flip4Mac WMV [Click for support]
    Java [Click for support]
    MusicManager [Click for support]
    Perian [Click for support]
Time Machine: ℹ️
    Skip System Files: NO
    Mobile backups: OFF
    Auto backup: YES
    Volumes being backed up:
        Macintosh HD: Disk size: 3.11 TB Disk used: 1.32 TB
    Destinations:
        Backups.backupdb [Network]
        Total size: 5.00 TB
        Total number of backups: 40
        Oldest backup: 2015-01-15 22:28:41 +0000
        Last backup: 2015-02-20 04:34:32 +0000
        Size of backup disk: Adequate
            Backup size 5.00 TB > (Disk used 1.32 TB X 3)
Top Processes by CPU: ℹ️
         4%    WindowServer
         2%    plugin-container
         0%    usbmuxd
         0%    Plex Plug-in [com.plexapp.system]
         0%    Safari
Top Processes by Memory: ℹ️
    438 MB    softwareupdated
    309 MB    mds_stores
    258 MB    Safari
    258 MB    firefox
    232 MB    iTunes
Virtual Memory Information: ℹ️
    12.78 GB    Free RAM
    7.34 GB    Active RAM
    3.84 GB    Inactive RAM
    1.81 GB    Wired RAM
    6.78 GB    Page-ins
    0 B    Page-outs
Diagnostics Information: ℹ️
    Feb 19, 2015, 07:39:44 PM    Self test - passed
    Feb 18, 2015, 02:03:17 AM    /Library/Logs/DiagnosticReports/Plex Media Server_2015-02-18-020317_[redacted].cpu_resource.diag [Click for details]
    Feb 17, 2015, 02:03:05 AM    /Library/Logs/DiagnosticReports/Plex Media Server_2015-02-17-020305_[redacted].cpu_resource.diag [Click for details]

IMac crashes while making backup with TimeMachine to Western Digital My Book World

When I try to make a back up with TimeMachine to my Western Digital My Book World Edition II, after some time I get a kernel panic and everything freezes. This happens while the back up-process is well under way. Finding the back up disk and preparinf the bak up takes quite some time (more than 20 min.)
I have updated the WD tot tthe newest firmware v. 1.02.12) and all Mac-updates are up tot date as well.
Any clues are greatly appreciated.
Regards,

Followed the directions on this page and it worked!
http://forums.macrumors.com/showthread.php?t=1102423
Part One - Turn on SSH (in the admin panel)
[1] Go to to http://mybookworld.local
[2] login: username will be admin, password will be whatever you have setup. If you can't remember it should be in your Mac OS X keychain (Utilities > Keychain Access, search for "mybookworld"). If you have not changed if from the default the password will be admin as well.
[3] Switch to advanced mode.
[4] From the System tab, pick Advanced.
[5] Enable SSH Access, and click submit.
[6] Click on the network tab and then the LAN button
[7] Make a note of the IP address
Small, maybe obvious, but nevertheless important point: For the install to work, your NAS needs to be connected to a router with internet access.
Part Two - Install netatalk2.2
[8] Open Terminal.app (Utilities > Terminal)
[9] Enter the following command (substitute in 127.0.0.1 for the actual IP address you noted down in step 7), then hit return:
Code:
ssh [email protected]
[10] When prompted, enter the ssh password (will be welc0me).
[11] You are now going to download the installer. Enter the following command, then hit return:
Code:
wget http://mybookworld.wikidot.com/local--files/netatalk2-2-on-whitelight/install_netatalk.sh -O install_netatalk.sh
[12] Once completed, you will need to run the installer. Type:
Code:
sh install_netatalk.sh
[13] You will be asked a number of question during install, answer yes to all. When asked about the "DHX2 login process", I opted to install the modified version, so I can confirm it works.
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IMac constantly inputting text, even with keyboard unplugged etc

Hi guys,
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Many thanks.

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Crashes on launch, even with option key held down

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bp-98bc09af-ceea-4295-b10d-b2fe82130914

Can you create a new profile?
See "Creating a profile":
*https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues
If the new profile works then you can transfer some files from an existing profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem.
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Firefox crashes on startup, even with a fresh profile

Crash ID: bp-6e18ab4d-b1a3-4292-b72a-f841d2141223

In the address bar, type '''about:crashes'''<enter>.''' Note:''' If any reports do not
have '''BP''' in front of the numbers, click it and select '''Submit'''.
Using your mouse, '''mark''' the most '''resent 7 - 10''' crash reports, and
'''copy''' them. Now go to the reply box below and '''paste''' them in.
If you can't get Firefox to open, you will have to do this the hard way.
Open the file browser / explorer on your computer. Enter this;
'''%APPDATA%\Mozilla\Firefox\Crash Reports\submitted'''
Copy the last '''5-7 Recent File Names''' in
the folder, including the date and time created.
Post all the information in the reply box below.
'''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]''' {web link}
While you are in safe mode;
Type '''about:preferences#advanced'''<Enter> in the address bar.
Under '''Advanced,''' Select '''General.'''
Look for and turn off '''Use Hardware Acceleration'''.
Poke around safe web sites. Are there any problems?
Type '''about:support''' in the address bar and press '''Enter.'''
Under the main banner, press the button; '''Copy Text To Clipboard.'''.
Then in the reply box at the bottom of this page,
do a right click in the box and select '''Paste.'''
This will show us your system details.
'''No Personal Information Is Collected.'''

4s random crashes and freezes, even with DFU restore

I have a 3 week old 4s and have since had to take the phone to Fresno genius bar three times. My phone has had random crashes (preferences, mobile safari, messages, app store, words). Each time I was told that a DFU restore would fix this problem. The last they did was on Dec 21. It is now Dec 27 and my phone has crashed 6 times with the last one requiring a hard reset as the phone froze while using Safari. I understand that phones are computers and it will crash at times. However, this is a 3 week old phone, it has been less than a week from a full restore, and there does not seem to be a pattern on which apps crashes. I also clear my unused apps (double click home button and clear apps on the background) every day, so it's not like memory is tied up. And besides, a 4s shouldn't be concerned about that, right. I also have several friends that have 4Ss and have had not had this problem to the extent I've had so far? Have any of you guys experienced this?

The symptoms that you describe could definitely be caused by a failing power supply unit (PSU). It can cause many problems that don't appear to be related to the PSU. Here is a guide to help you troubleshoot it.
Here is a guide to help you test the hard driver using the SMART diagnostics in the BIOS.
Test the memory by removing all of the modules and replacing them one at a time and booting. Place the single memory module in the slot closest to the Processor.
Please click the "Thumbs Up+ button" if I have helped you and click "Accept as Solution" if your problem is solved.
Signature:
HP TouchPad - 1.2 GHz; 1 GB memory; 32 GB storage; WebOS/CyanogenMod 11(Kit Kat)
HP 10 Plus; Android-Kit Kat; 1.0 GHz Allwinner A31 ARM Cortex A7 Quad Core Processor ; 2GB RAM Memory Long: 2 GB DDR3L SDRAM (1600MHz); 16GB disable eMMC 16GB v4.51
HP Omen; i7-4710QH; 8 GB memory; 256 GB San Disk SSD; Win 8.1
HP Photosmart 7520 AIO
++++++++++++++++++
**Click the Thumbs Up+ to say 'Thanks' and the 'Accept as Solution' if I have solved your problem.**
Intelligence is God given; Wisdom is the sum of our mistakes!
I am not an HP employee.

IMac 24 wont startup even with install disk -

I only get the apple gray screen with logo and endless twirling wheel.
I can hold "T^" and startup in slave mode. But no need to to this. - The genius bar got it working a couple weeks ago but it stopped again - i think it is a goner. When I hold control shift I do get a readout that includes words like; security auditing service present..does this mean the CIA is coming to take my flying saucer away from me finally? - can anyone suggest something--(I dont care about any files..There is only 50 gigs of info/apps on my 500 gig HD)

HI,
Go here ...
Resolve startup issues and perform disk maintenance with Disk Utility and fsck
Carolyn

My iMac crashed once and so I held the on/off button and it was fine. It did it again while I wasn't around and my mum unplugged it from the socket.

So my iMac crashed - just left normally with safari while I was listening to music on Pandora and suddenly the screen became full of fray lines and nothing could be seen or done. I then had to force it off by turning it off from the on/off button at the back. I then turned the Mac back on and it was working like normal. I turned it off that night.
My mum then turned it on and was playing spider solitaire like she always have. The same thing then happened to (while I was not around). She does not know much about computers and she couldn't turn it off after a while so she decided to then turn it off by unplugging it from the powerpoint/wall socket. It then would not turn back on.
Whenever I try to turn it on I can hear the usual clicking sound of the CD/DVD side, but nothing happens, it's just a blank screen.
What should I do? I've had this iMac for about 2.5 years almost 3 years now and this only happened last night.
Please help??

Ok so it turned back on, and after leaving it on for less than 30 minutes and was not running any applications and it suddenly turned to a black screen and when I touched the back of it, it was completely boiling. Could it be that something is wrong with the fanning system? If I have purchased this iMac for almost 3 years already. Would I still be able to bring it out to the apple store and have it looked at?
Would I have to pay anything to have it fixed by the apple store?

IMac crashes on startup or freezes with graphical glitches

Hi,
My early 2009 24" iMac suddenly crashed a few days ago, while browsing on the internet with no major app running. It did so with graphical glitches, like coloured dots. Since then, it would always shut down suddenly every time I restart. It shuts down right after the Apple logo and the wheel, once even reaching the user selection screen for a second, then shutting down before I could even move.
I started it in safe mode and ran all the checks, it says the volume is fine. When checking disk permissions, it did give me a few error messages but let me do the repairs. Weird thing is when I ran the disk permission verification again it showed me the same permission, as if they hadn't been repaired.
Now I backup everything and tried to reinstall OS X but to no avail, it kept doing the same thing.
So I formatted the disk, zeroed it out and reinstalled Mavericks. Same thing keeps happening, which seem to indicate some kind of hardware failure, right?
On one occasion it did start up but after a few seconds it froze, with heavy glitches (see picture attached - sorry it's upside down but it doesn't make a huge difference anyway!).
I upgraded the iMac with new RAM a year ago or so, and 2 years ago it had a hard drive failure, so I replaced the HD. Never had any problems in general, apart from when I had to replace the HD of course. It's always been very stable and well behaved.
Any idea what the problem could be? I'm not looking forward to having to fork out £1500 for a new one...

http://www.apple.com/uk/legal/statutory-warranty/ may be worth reading before you visit Apple. I don't thibk you'd be the first to argue that an expensive, quality computer ought to last more than 5 years, albeit that say, mechanical hard drives inside might need replacing.

2008 24" iMac crashing both SnowLeopard and Mavericks

My iMac crashes about 1-3 times a day, usually while scrolling (either via scroll wheel or using mouse), or switching tasks. Sometimes the screen goes blank (either solid grey or white, or horizontal grey or white stripes, or all black), or the screen presents the normal picture but the cursor disappears or doesn't move, or the cursor moves over a normal screen but no actions can be taken (force quit not available either by mouse or by keyboard). Often I have Mail or Safari open but not always. So I have to do a hard kill and then restart. Computer restarts normally and nothing seems damaged. Apps work as they should.
This problem occurred when I was running Snow Leopard, and has reoccurred after switching to Mavericks. I keep the OS updated to the latest version of each. My iMac has 4 GB RAM and 1 TB HD (3 partitions) currently with TimeCapsule Router (2TB HD), but I had the same problems under Snow Leopard when running 2 GB RAM and 320MB HD and Airport Base Station.
When I upgraded OS to Mavericks and HD to 1TB I did disk repair using Apple's tool as well as Drive Genius3, then did a backup, and then inserted new HD and installed Mavericks to a 700GB partition, and restored from backup. Then I used AppZapper to remove residual of all apps that would no longer run under Mavericks. Also tried disabling all Safari extensions. All to no avail.
Do anyone have any ideas? Is this related to older HW (Core 2 Duo) and newer OS?

Create a new admin user account in Users & Groups preferences. If you have Automatic Login enabled, then disable it. Restart the computer and choose the new account for login.
Operate out of this new account for a day or so to see if the problems are resolved.
Transferring files from one User Account to another

IMac (24" Aluminium, Mid 2008) Freezing and Graphical Glitches

Hi all,
I'm having to write this on my MacBook as my iMac developed serious problems yesterday evening. Nothing new has been installed recently, and I was just listening to music on iTunes when I noticed that my iMac seemed to have frozen, although music was still playing. After the song finished it switched to the next track, but I could not control anything. The screen developed graphical glitches in the form of a lot of speckles. All I could do was hold in the button on the back and turn it off.
I've tried turning it on a few times today and the problem still persists. I've tried resetting the PRAM but that hasn't fixed it. Myself and my housemate seem to think it's a graphics card issue (NVidia GeForce 8800GS), but the problem doesn't occur when booted in Safe Mode and also doesn't occur when in Windows XP under boot camp. My iMac is running Snow Leopard 10.6.8, and I have no idea why this has suddenly happened. I swear this has happened once before, but I think the PRAM reset was what I did back then and it worked.
A few weeks ago I upgraded the iMac from 2GB RAM to 4GB RAM but it's been absolutly fine until now. Could a RAM issue be to blame for this, and could it take so long to suddenly emerge?
Thanks in advance for and help or insight anyone could offer. I know there are a lot of posts about this but I know some symptoms are slightly different so I wanted this post to be specific to my case.

+I guess the big question is whether the iMac dvi port is output and input.+
Output only on that model iMac. You'd best borrow a real monitor for initial configuration of the Mini. Once it is configured and you've turned on Screen Sharing, you can access the Mini remotely from the iMac.

2008 24" 8800 GS 512MB iMac crashes / graphics glitches even with CD boot

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