Model A1312 / Mid 2010 / 3.2 GHz Core i3 or 2.8 & 3.6 GHz Core i5 or 2.93 GHz Core i7

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Won't detect new Hard Drive

My original 1TB Seagate drive that was in my iMac failed, so I decided to do some upgrading. I bought a samsung SSD and a new Seagate 1TB hard drive and installed both via the OWC instructional video and the ifixit guide.

My SSD is recognized perfectly and the iMac is running off a fresh install on the SSD and I love it! However I only got a 120GB SSD because I was planning on using the 1TB Seagate drive I bought for the storage.

My problem is that my mac isn't detecting the new Hard Drive, I have tried Disk Utility both from my desktop and from the recovery partition, I even tried detecting it under the windows Bootcamp. For whatever reason it won't come up...

Does anyone have any suggestions as to what could be going on?

Here is the replacement hard drive I bought:

http://www.bestbuy.com/site/1tb-internal...

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I want to add that I am confused based on some reading I have done if the problem maybe comes for it being a SATAIII drive that writes at 6Gb/s? I thought it was backwards compatible but from what I have read others have had issues with them as well?

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Yes it's quite common that new drives are not as backward compatible as promised. The freeze, hang or wont format. Some can/must be manually jumpered to a lower speed. A 6Gb/s drive must have a 3Gb/s transfer speed in order to work.

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Deck the Halls
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Talk with the vendor… that it doesn't work in either Mac or WinDUHows to me says the drive is suspect. You might try the drive in an external case so you could see if other Macs or an actual WinDUHows machine can format it.

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Haytham Akremi will be eternally grateful.
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