Diagnose strange HD behavior.

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MacBook Pro 17" Models A1151 A1212 A1229 and A1261

Non-Unibody, Core Duo & Core 2 Duo Processors

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Michael Cotruvo @michaelcotruvo

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Posted: Oct 3, 2014

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Diagnose strange HD behavior.

I'm having the same problem, I opened up the computers and switched drives.

The drive in the non working computer is fine and boots and runs fine. When I put it back in my wifes computer I can't see it in target mode. Also it won't boot to the CD's or any other system I have installed on other drives. I'm thinking the mother board is dead.

Any comments sure would help. I was able to save her photos though when I had her drive in my computer.

These are both core 2 Duo MacBook Pro's.

Thanks, Mike

Answer this question I have this problem too

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2 Comments:

Michael, Its best to create your own question with your systems details as you clearly have a different issue here (similar but not the same).

Sep 21, 2014 by Dan

Help us help you. The more complete the description of your problem is (exactly what two machines you're using - there are many versions, what OS you're using on the two drives-there's a lot of those too, some more history - this was a "migrated" Question and all the relevance is missing) the more assistance we can provide, and, the sooner we can provide it.

Oct 21, 2014 by originalmachead

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Michael, Its best to create your own question with your systems details as you clearly have a different issue here (similar but not the same). — Dan
Help us help you. The more complete the description of your problem is (exactly what two machines you're using - there are many versions, what OS you're using on the two drives-there's a lot of those too, some more history - this was a "migrated" Question and all the relevance is missing) the more assistance we can provide, and, the sooner we can provide it. — originalmachead

originalmachead @originalmachead Rep: 116.3k 66 68 359 · Answer 1 · 2014-10-21T18:33:50-07:00

originalmachead @originalmachead

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Posted: Oct 21, 2014

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Something that can cause a "good" drive to behave badly is a significant difference between two machines.

Your ID is referring to three models which each have definite limits as to which flavor of OS X they can support... So if your sticking a HD with OX 10.8x in a box that at most can run a crippled version of 10.6, or 10.7.5 or. 10.7.5 on a box that can only run 10.6.8 that may be a reason you can't "see the drive".

Also some installations of the OS are box specific. By that I mean drivers that are installed for one platform are missing, or do not work on a different box.

If this answer is acceptable please remember to return and mark it.

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