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Model A1225 / Mid 2007 and Early 2008 / 2.4, 2.8, or 3.06 GHz Core 2 Duo processor

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Cannot format new hard drive?

Ordered a new 1TB SSD Hybrid HD Seagate from i fix it. Took the advice of those on this board and made sure what i ordered was compatible. HD install went well.

Problem: I am now trying to format and boot from the IMAC OS X Snow leopard disk that I have in the drive. I get to the point on start up where I click on the Mac OS install disk on the screen, and then the Apple logo shows up with the rotating gray gear, after a few minutes, and hearing the drive make noise reading the CD I get the GRAY SCREEN that rolls down and tells me I need to restart my computer..

I have spend hours today scrolling through different forums trying to trouble shoot the problem, I was hoping that someone here had the answer before I give up and take it to an authorized dealer..

Thank you,

Scott

Update (03/11/2017)

Block Image

So now I get to this point with the gear spinning, and instead of telling me it needs to be restarted it just shuts off after about ten minutes of the dvd drive trying to boot by using the snow leopard disc.. something to note, the mac will turn on without me pressing the power button if i unplug it and then plug it back in.. i replaced the PRAM battery but had to tape it down to make it stay seated in it bay.. any words of advice would be greatly appreciated...

Scott

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It sounds like a bad optical drive or bad ram. Can u take a picture of the bottom of the stand. Adding images to an existing question Use this if it can help u add an image.

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Can u put up a picture of the screen when it tells u to restart

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Was your machine having problems before you started the new hard drive process?

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Sounds like the screen you were getting was a kernal panic. This can be caused by any number of issues. But its hard to say if its related to the install process or not.

Did you have any other faults with the machine before starting the hard drive replacement.

Can you also confirm what type of disk set the snow leopard disk is?

If it is a retail disk set (with an image of a snow leopard on the front), then that should work fine. If it is a grey system disk, then it will not work with your machine.

The grey disks are machine specific sets that are shipped with Macs from apple. Your 24" 2007 model was shipped with 10.4.10, so a grey 10.6 disk wont work (10.6 wasn't shipped with iMacs until Late 2009)

It does sound like you're having an issue with your optical drive though, as its hanging on the loading process. Presumably you are hearing some loud noises from the drive as its attempting to load?

If you get an unusually long hang time on the load process, that can cause a kernal panic, but it could also be a different hardware fault, as others have noted.

One thing you can try, is making a disk image of the 10.6 disk set (as long as it is a retail disk set), then restoring that disk set onto an 8GB USB stick, then using it to boot from in the same way. that way you're ruling out your disk drives potential fault in the process.

I hope this helps.

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