2103 Views 9 Replies Latest reply: Jul 10, 2008 11:30 AM by cornelius
If you can't boot form the install disk that came with the iMac, you may have a hardware problem.
But first, which iMac model is this?
Also, when you boot the iMac, are you holding down the C key?
Make sure you have all peripherals and network cables disconnected (except the keyboard and mouse
If you have more than one memory chip, try swapping them out to see if it will boot with one or the other rather than both.
But do post back with more details/questions.
Well, did you try swapping out memory chips yet?
If that doesn't work, or isn't an option, you can check out
and check out the rest of the troubleshooting tips, including resetting the PRAM and NVRAM.
I just wanted to let you know a couple of things as I see you are already receiving help from cornelius, et al.
Try restarting the computer while holding down the mouse. This, hopefully, will eject the disk if it is still stuck in the tray.
What you have experienced, in case you are not aware, is referred to as a Kernel Panic.
See: "What is a Kernel Panic? (Mac OS X)"
Also, there are some excellent troubleshooting steps you can take that are found in Dr. Smoke's, of the X-Lab, FAQ Resolving Kernel Panics.
hope that helps some,
Sorry about the delay.
OK to reset PMU.
Try booting from the Apple Hardware Test disk that came with your computer and run all tests in a loop by holding down Command + L during the tests.
If you are not able to boot from the optical drive, try booting into Safe Mode by holding down the Shift key immediately after the chime.
Let us know how it goes.
Ok, so it turned out to be something simple. I was trying to reinstall from the original disk that came with the mac which was 10.2. I had since updated to 10.3 and when I tried to start with the old disk the computer didn't recognize it.
I am currently watching the blue bar grow as it installs the software and erases my computer. Assuming there's no other issues, this one's solved. Thanks for all your help, I learned a lot from this experience!