Will not boot operating system even with optical drive.

I bought this MBP with no hard drive, question mark would illuminate on gray screen. I was hoping this indicated the logic board was OK and it was looking for the hard drive.

I installed an OEM Fujitsu SATA drive(used) and ribbon cable. It still would not boot or recognize the drive even when trying to boot using the install disc, however the hard drive is running.

It no longer showed the ? when trying to boot. I checked the RAM and found that it was not fully inserted, but that did not take care of it either. Now every time I try to boot I get the message telling me to shut down and restart.

I have tried every command I have seen on this forum always with the same result.(C, V, Shift, T, zapping PRAM, command PR) I have tried option boot as well.

I could have a bad hard drive as it was used, the RAM could be bad as it is Korean(Hynnix), or I likely have a bad logic board. I would like to eliminate all other possibilities before contemplating logic board replacement, but I do not have extra parts to switch out.

Also, the optical drive will not eject my install disc.

I would really appreciate your help, and thank you very much for this forum.

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You are having kernel panic - could be either hardware or software. Did you option boot and select Optical drive?

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Sorry cityen, but these machines will not boot from external USB drives only firewire drives. Buying non-functioning electronic equipment is not a good idea if you don't have the knowledge, diagnostic tools and/or replacement parts to fix it. You just have too many variables to help. Everything is in question and you have no tools to test anything. Take it to someone who has the knowledge and tools. This could be something simple or be an absolute money pit. You are in way over your head. As you said, could be the hard drive, optical drive, RAM, logic board, installation disk or something else, there's no way to tell in your living room or over the internet.

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I would try booting from a USB optical drive. You can also try a USB hard drive or flash key if it is set up for the MacBook already. Hold down the option key as you boot to show a boot selection menu.

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- vote: Can't be done from a USB drive: http://www.everymac.com/systems/apple/ma...

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Here's a quote from the link:

"In a nutshell, Intel-based systems, like the MacBook Pro, can boot from external Firewire drives, and can boot from external USB drives as well, provided that the drive is formatted appropriately (GPT) and a compatible version of MacOS X is installed. Nevertheless, as Apple does not appear officially to support booting from non-Firewire external drives using MacOS X, it probably is wise to use Firewire."

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