MBP does not recognizes the additional HD

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MacBook Pro 15" Unibody 2.53 GHz Mid 2009

Released June 2009 / 2.53 GHz Core 2 Duo Processor

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PM @mrqdilmoykl1tho

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Postado: 9 de dez de 2015

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MBP does not recognizes the additional HD

My Superdrive stopped working and I thought to replace it with an additional HD.

So I have mounted an SSD in the place of the original HD and planned to instal the original HD in the place of the Superdrive through an adapter .

The SSD works perfectly but the MAC does not see the original HD neither in the Utility Disk nor in the Finder.

IN the meantime I found out the Superdrive works well through a USB port and so I thought the problem was with the flat cable connector so I replaced it but still the MBP does not recognize the HD.

Help please!

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which adapter did you get ? i believe you have to get ones that are designed to work with macs

9 de dez de 2015 por smai555

The adapter is designed for Mac (see link to Amazon - http://www.amazon.it/gp/product/B00A2VNU...) but I don't think that is involved.

What really bugs me is that the Superdrive did not work in its place inside the laptop but it does if connected externally via USB. This is why I thought it might have been a problem of connections or cables.

I also tried the reset of the SMC and PRAM with no success...

11 de dez de 2015 por PM

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Dan @danj

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Postado: 12 de dez de 2015

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Yes, it does sound like the optical drives SATA cable is bad here or the ports logic.

You may want to review OWC: Data doubler page. While you have someone else's unit they all have the same problem due to the system controller chip Apple used. In your case you have a MacBook Pro 15" 2.53 GHz Core 2 Duo {MacBookPro5,4}. Here is what OWC states:

2008/2009 MacBook/MacBook Pro 13", 15", and 17" models. (Model IDs: MacBookPro5,1; 5,2; 5,3; 5,4; 5,5 and MacBook5,1; 6,1; 7,1) While a 6G SSD does function, it will only do so at SATA Revision 1.0 (1.5Gb/s) speeds rather that the SATA Revision 2.0 (3.0Gb/s) speed the machine can deliver. Should owners of these machines desire another SSD option, the Mercury Electra™ 3G SSD does run at the full SATA Revision 2.0 (3Gb/s) specification.

Basically your Optical drives SATA port is only SATA I (1.5 Gb/s) in this model. So you are limited to drives which are compatible with SATA I. The original Apple drive is a SATA II (3.0 Gb/s) and may have problems running here in the optical drives SATA connection. I should also point out the crash guard protection Apple has in their systems is only within the HD SATA connection. So moving the drive over you loose this protection.

Frankly, I don't recommend doing dual drives in this system given all of the issues here. I would recommend going with a SSHD hybrid drive Seagate laptop SSHD replacing the HD alone. Then you gain the performance of the SSD and still have the deep storage of a traditional HD. Or, if you can swing it get a larger SSD alone and be done with it.

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which adapter did you get ? i believe you have to get ones that are designed to work with macs — smai555
The adapter is designed for Mac (see link to Amazon - http://www.amazon.it/gp/product/B00A2VNU...) but I don't think that is involved.

What really bugs me is that the Superdrive did not work in its place inside the laptop but it does if connected externally via USB. This is why I thought it might have been a problem of connections or cables.

I also tried the reset of the SMC and PRAM with no success... — PM