[iMac] cannot boot new 500 GB SATA II HD installed into G5 20" iMac

[Michael Murphy]

I put a 750 GB hd into my original iMac G5 without problem. I did use  
a Firewire external enclosure for cloning the drive though. This  
might be your problem.

Michael


On Jan 25, 2007, at 10:40 PM, Steve Goldstein wrote:

> Folks,
>
> Any insight would be helpful.  My wife's G5 iMac came with a 150 GB  
> HD (Western Digital).  She has outgrown it.  So, I ordered a 500 GB  
> Samsung SATA II HD501LJ.  I cloned the existing HD to it using  
> Carbon Copy Cloner.  The 500 GB Samsung was in an external USB 2.0  
> SATA enclosure.  After cloning, I installed it inside the iMac, and  
> it would not start up.  I can start the iMac with a backup external  
> Firewire drive, and when I do, I can open the 500 GB Samsung  
> internal.  Everything seems to be there.  I also rebuilt its  
> directory with DiskWarrior, repaired permissions, and Zapped the  
> PRAM through three bongs on a startup.  Also pressed the PMU button  
> inside the imac.  Nothing works.  Booting with Option key held down  
> or selecting StartupDisk in System Preferences shows this new  
> Samsung drive as a valid startup drive.  If I try to start up with  
> it, I get the gray screen with the Apple logo and the rotating  
> wheel/gear, but that can go on forever and ever.  Also, I tried a  
> Safe Boot, and the same thing happened: the gear wheel kept spinning.
>
> AppleCare was no help.  I got a clueless guy with an Indian accent  
> who put me on hold for about five minutes while he consulted "a  
> supervisor."  Then he came back and told me to bring it to Apple  
> Service.  Grrrr.
>
> Does anybody know if the G5 iMac can boot from a 500 GB [Samsung]  
> SATA II drive?
>
> BTW, I have a 20" Intel Core Duo iMac, and I only regret that I  
> cannot take that one apart (at least without voiding Cupertino's  
> protective cloak).
>
> Thanks for any input.
>
> --Steve (who has been taking Macs apart since 1989)
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