ESata external drive not recognized on MacPro 2,1

Hi. I installed Newertechnologys MacPro "Quad Xeon" eSATA extender cables from OWC into my MacPro 2,1. They connect directly to the logic board. I have tried connecting to OWC Mercury Elite-Al Pro Qx2 external drive bay and also tried an Eagle enclosure with a eSata port. No joy. Both drive bays are recognized on Firewire and usb, just not on eSata. The previous owner had used one of the logic board ports for an optic drive. Still had the cable attached to the port. I have tried multiple eSata cables from both ports. Am I missing something or are the ports bad? I see nothing in system profiler that would indicate that the ports even exist. Thanks.

It makes sense that you cannot Hot Swap. You are not actually converting to eSATA (as you would with an added PCIe card) you are simply extending the cables (that Apple put there for INTERNAL drives) out the back of the machine.
It also makes sense that these cables show up on the Serial-ATA, or SATA Bus.

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Please provide your complete model number of your system.
By doing so, we will be in a better position to provide you assistance.
Thank you,
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"Knowledge should be unrestricted and the most important commodity we can offer to help one another."

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Shteeg wrote:
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As per Bob's comment.. you are now in Limbo.. since you don't know if the problem is the hard disk or the usb hub. And it is possible either or both are at fault.
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MeganEllen wrote:
What can it be? what can I do??
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SB
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Hello, go2post.
Thank you for visiting Apple Support Communities.
I understand that your external hard drive is not longer being recognized by your iMac. Here are a couple articles that will get your started troubleshooting this issue.
OS X Yosemite: Check your device’s USB connection
OS X Yosemite: If a USB device isn’t working
Cheers,
Jason H.

ESata external drive not recognized on MacPro 2,1

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