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Put the Mac install disk back in. Try pressing command-option-escape to force quit. If nothing happens, then press command-control-power to force a restart. If that doesn't work, press and hold the power button for five seconds or so until the computer shuts down. Power up the computer again, and hold the option key so you can select the instal disc for startup. Run Disk Utility again. Sometimes you get a tangled file reference that requires several tries to undo - this could be calling the sleep routine instead of what it's supposed to do.
This is usually due to the BIOS/Clock/CMOS battery dying. If the battery is dead, it won't start up at all.
Check out YouTube for instructions on opening your model, and replacement batteries are available at just about any Radio Shack, or online at various places. These guys may have them, too: http://www.headgapstore.com/
the flashing ? mark means its not seeing any bootable device do you have the original OS disk from apple???? If you do you need to boot with them and test the hard drive to see if its functioning and or there is an OS issue.
Hello,
This means the system software installed is incomplete. You may simply reinstall MacOS 9 (or MacOS X up to 10.3 for non FireWire clamshells, and 10.4 for the SE models).
HTH
I believe that your problem is related to the OS 9.2 you are using, it has quite a few problems, I recommend you upgrade to a newer version, maybe OSX 10.3 or 10.4
What you could do is that you could look around online like on ebay or on a great site called www.ifixit.com . That is a great site and they have a lot of great parts for both mac laptops and iPods/iPhones.
I'm thinking that your battery in the iMac is dead or very close to being dead. Or your power cord is no good anymore or your power supply is on the verge of being dead. Hope it helps.
plug it in turn on power. light flashes but monitor doesn't light up ?
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