Intel imac not starting

Hey kids, was installing Adobe CS2 Premium suite when she locked up midway through the installation. I had to manually shut'r down... When I restarted it, it locked up at the 'Starting OS X' screen..... I tried the disk repair utility and it found some errors, it repaired them, I restarted, but still the same problem. I tried disk warrior, but the system would not recognize it as a bootable disk (***?).... I zapped the PRAM.... I verified permissions and repaired through the disk utility..... still isn't starting up.
Any ideas out there??? Please.... Thanks.

Not all of CS2 is Intel compatible.
You need to boot into Safe Mode (press the "Shift" key during startup) and completely remove Version Cue, it is incompatible with Intel Macs. Safe Mode is a longer startup (3-5 minutes) but it disables any 3rd party startup items in the process. Acrobat has also had issues with Intel Macs but Adobe has an update that is supposed to fix that.
Do a search here in the Intel Forum for the many other threads for CS2 issues. There are a few.

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    DIRECTLY from the iMac Help site:
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    * Controlling the fans.
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    The iMac (Early 2006) and later models do not have a button on the main logic board for resetting the SMC, which eliminates the need to remove the computer's cover to reset it (as required for some earlier models).
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    Hello,
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    spudnuty wrote:
    Hello,
    Anic,
    You can't remove the CPU nor remove/replace the RAM… Really a bad model!
    Yes you have to think of it more like a laptop. The only models w/ removable CPUs were the Towers.
    Which explains why I thought CPU were usually removable (I have mostly used towers except the original iMac, before).
    Thanks. I indeed never touch a board when the computer is plugged.
    Hee hee I did since I was used to working on the ALS model where the power supply is enclosed.
    Even on an enclosed power supply, I'd not want to touch some kind of board. Well, perhaps it's just me.
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    Not sure what you mean here?
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    the external screen adaptor..(if it wasn't optional, then she does not know where it is).
    Well it looks like this. It's pretty standard. Every iBook had one for instance.
    http://www.synaptech.com/catalog/images/922-4554.gif
    In fact, all the laptops I have seen have that kind of adaptor (although they may slightly vary from models to models), but I thought it was only for laptops (which, as they are easy to move, may have different available screens). Now, does it also apply to iMacs?
    I have a question regarding this: I guess the LED3 is concerning the whole graphic card, not just the built-in output, right (in other words, not just about the "main" display)? So I doubt an external screen would make any difference since the LED3 is off (tell me if I'm wrong).
    Well what the manual says is:
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    So if that's not light then the graphics chip is not communicating with LCD panel.
    Fine, but can the graphics chip still communicate with the external port, even if the LED3 is off?
    (sorry for having been unclear)
    So you did a SMU reset like this:
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    1. Unplug all cables from the computer, including the power cord.
    Wait 10 seconds.
    2. Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer.
    3. Let go of the power button.
    4. Press the power button once more to start up your iMac G5 (17-inch iSight).
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    2: while still unplugged, I pressed the power button (held down for about 5 seconds), then released it and plugged the power cord back.
    Do you think I should press the power button while the iMac is still unplugged and keep the button pressed while I plug the iMac (then release the button after I have plugged it)?
    If that doesn't help you really need that Mini VGA to VGA adapter so you can plug in a standard VGA monitor and check out the output of the graphics chip (GPU).
    I'm glad you mentioned every iBook has one, since my sister has an iBook
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    I'm doubting of that, because I'm sure the Mac does not boot at all (not just a blank screen, but also no power on USB ports).
    Also you should read through this site:
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    Hmm… What a charming surprise
    Well, I'm indeed aware of this (it hasn't happened to me yet, fortunately).
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    Fine, I follow the guide
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    Hello,
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    I have tried usual commands (reset PRAM and reset the SMC). Also tried with no device connected. (well, if something so trivial than all these tips did the trick, I wouldn't had to ask here ).
    So, without keyboard, I couldn't even try special modes (safe, target disk, start from CD, etc), should the Mac be able to start in some mode. I have then decided to open the iMac (well, the warranty is way out, so nothing is lost). I have never seen a so-hard-to-open Mac, by the way (something was likely blocked).
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    Then, the CPU. There are 2 of them. So I thought I may take one out (and then the other one) and see whether the Mac starts. Well, I can't figure out how to remove the CPU cooling piece (there are just 4 "buttons" that can be pressed but nothing happen). I prefer asking here first, not removing the entire main board without advices.
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    David.Austin.Allen wrote:
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  • My IMac 24" intel will not start in safe mode.

    Did a Shift - Command-V and the black screen showing all the startup steps appeared and it all looked good except: AFL Alart Sockwed cant update and INIT Reboot transmit failed. All else looks good. I have tried this 3 times and never go past that point. Then the screen turns off white like it does when it starts normally before the apple appears and the last time the screen went black.
    I have tried starting with just the Shift Key and computer starts up but not in safe mode.
    I have tired starting with the OS X disk and the C key and it will not recognize the disk.I used the #1 disk since the instructions are printed on the disk. Did not work so I tried disk 2 and I get a menu to start the OS or tools. If I click on either one the screen goes white and stays that way.
    computer starts fine and provides a login window, and then the desktop screen with screen saver pictures in perfect color. As it goes through starting programs it starts the same programs that is had open when the computer originally crashed. Even when I close them, before it locks up again, and I am forced to restart the same programs open up to the same place. Its like the computer is frozen in one location and will not go beyond that point. Eventually the screen turns white and sometimes black and sometimes gray.
    Tech support thought it was the video card, put a new one in but did not fix the problem and then said it was not that but that it was the monitor. I said that did not make sense since the monitor and desktop icons and pictures are beautiful and clear. They then said it was the inverter board on the monitor and Apple only replace the whole thing. I purchased an inverter board and replace it. No change. The tech person said that the computer works find without the monitor connected - I will see if that is correct next. Isn't that a more systimatic testing procedure then trying parts to see if it works? Oh I did do the complete long hardware test. Took about an hour and it passed! Isn't this strange?
    I have to replace a monitor that has perfect color and image if it is something simple to fix or replace. Has anyone ever encounter anything like this? Could it be a virus? 

    As you probably read everthing was working fine for over an hour so I shut down and put everything back together completely, all monitor screws, aluminum cover and screws and screen cover, unplugged the external monoitor, plugged in external HD's and turned on the computer and guess what the old problem returned. So I unplugged the external HD's and plugged in the external monitor and took the screen cover off and restarted the computer and guess what it is working fine. Doing a disk utility verify first then if no problem I will unplug the external monitor if all is good then I will plug in the external HD's if all is good I will install what I believe is the problem the monitor cover screen.
    Your post about the Temp sensor and another post about the cable to the monitor with the temp sensor has me believing that the monitor is getting too hot for the fans to cool down or the sensor is faulty. Which one is the temp sensor? It is the monitor cable that has the little box at the end that screws to the logic board?
    How do you know if the secsor is bad or the monitor is overheating and the sencor is working correctly? Is there a test?

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