Mid 2010 Model A1278 / 2.4 or 2.66 GHz Core 2 Duo processor

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I installed a new SSD into my computer but does not show up

Why can't I see the SSH to select it to install OS-X? Is the new drive faulty? It said its compatible on the site.

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Thank you, a good idea, except the reason for the new HD replacement is that the original is dead.

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You have a few ways to prep the drive. But before you install the SSD drive in your system you do need to make sure it's a workable drive for you system.

You stated the site you bought the drive stated it would work but they may only imply its Mac compatible (which is nothing special). Its the SATA speed of your system and what the drive can run at that is!

So lets double check what you have here can you give us the name & model info of the drive?

You can also look at the drive spec sheet either on line or if the drive came with one and compare it to your systems specs (which I've linked in your question) You'll note your system is a SATA II (3.0 Gb/s). If it can't run at SATA II you'll need to return the drive.

The next issue is your system does not offer recovery services so you'll need to prep up a USB thumb drive as your OS installer or use a second system as the installer system using Target Disk Mode with a second Mac.

If your drive is still working you could leverage it as well using a SATA to USB adapter like this one: Startech 2.5" SATA to USB adapter. It makes no difference which drive is connected. You'll boot up with your current drive and then prep your new drive.

Update (01/07/2017)

OK here's the good news! Here's the spec sheet for the SSD drive: Sandisk X400 as you can see it states its backwards compatible to SATA II so this drive has auto sense logic to match the system so the drive is good here.

So your issue is indeed the drive cable!

Heres the IFIXIT guide to replace it: MacBook Pro 13" Unibody Mid 2010 Hard Drive Cable Replacement. But I wouldn't put in the 2010 version cable as it's not as good as this one: MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable.

MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable张图片

产品

MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable

$44.99

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Hi Dan. I went to Apple store and they told me that the new SSD was not working and I needed a new one. So I asked if the hd cable connector was bad and said they can not say because they do not work on "vintage" machines. So I look up SSD to use for this Mac Book Pro mid 2010 Unibody and a couple of sites recommended the Samsung x400. I just took the original drive over to a local Mac repair shop and turns out the original hd is fine, apparently needs a new cable, but they are on back order.

the specs: From iFixit:

256 GB SSD

Sandisk X400 Model #: SD8SB8U-256G-112

SATA 6.0 Gb/s 256 GB Unformatted

COMPATIBILITY

All MacBooks and MacBook Pros (excluding MacBook Air and MacBook Pro Retina)

All Intel Mac minis

At least one other site I saw before ordering said this SSD was compatible with this model I have.

Dan, you have provided a wealth of good info here and I appreciate your time and answers. Looks like I will need to return this drive and replace with another.

Thank you very much.

Gary

How do I know for sure SATA 6.0 Gb/s will work or not with my computer?

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Not sure if you have tried this, but somewhere along the installation you should be able to click disk utility. It might be in a menu bar or just a plain button. The drive needs to be formatted before being installed to is my bet.

You should find your drive and initialize it as GUID partition Map and Mac OS X extended, journaled, it should be the defaults.

You may have to reboot in order for the installer to see the disk. I am not sure if you have another mac around but if you do you could connect the drive to it either as a external drive or whatever and use the disk utility within mac rather than doing it through the installer.

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Thank you for your help and quick response. I do have an iMac that i can use. Now after trying a few more time I can not even get past the "Choose English" on the start of the disk. So I understand you I should take the new drive out of the Mac Book Pro use the HD adapter to connect it to the iMac and format the drive then and then install HD back and boot up from the disk utility again?

Your thoughts are greatly appreciated.Thanks

You would have to connect it to the computer as an external drive so you still have access to the OSX. You could also try to insert the hd into the iMac and try installing the OSX on there as well and see if one works

I suspect Gary has the wrong drive for this system! The drive is likely a SATA III (6.0 Gb/s) and what you need here a SATA II (3.0 Gb/s) drive.

What confuses people is some drives offer auto SATA speed sense technology but some cheaper drives don't! So you need to review the spec sheets to see if it lists SATA II (or 3.0 Gb/s) if not, it won't work.

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The easiest way is to format the SSD first while your original drive is in the MacBook. Then clone your whole drive before installing it into your MacBook Pro.

If you can't format it to GUID then the SSD probably would not suit a Mac.

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Cloning is not a good solution as you can carry over all the old junk to the new system! I've also seen odd issues because of the way cloning software works.

Best to do a fresh OS install and use the migration tools built into the OS and OS installer 'Migration Assistant' It does a better job.

Good info. Will not be cloning to prevent further issues. Thanks

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