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2011년 10월 24일 출시 / 2.2, 2.4, 또는 2.5 GHz 쿼드-코어 Intel Core i7 프로세서

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MacBook Pro won't turn on after adding a 2nd SSD drive into hd caddy

Macbook Pro late 2011 model will not turn on after I added an additional SSD into the optical bay. It turns on if I unplug the new hard drive from the motherboard. I want to use the new drive as an additional hard drive with my old one while booting from the the old drive. Why won’t it turn on but everything works when I unplug it from the motherboard? Here is the SSD i put in there. Thanks.

UPDATE: I placed my existing (the one I already had in my macbook) SSD drive into the HD caddy by itself and the macbook still would not boot. Could be problems with the optical caddy or the cable? Thinking about buying another drive bay, this one is sort of old and was laying in my basement for a while. Help!

UPDATE: I tried the optical bay by itself and the same thing happens, assuming problem is with my optical caddy now, going to get a replacement.

Not sure what model/brand but here's a picture of the optical caddy I'm using:

Block Image

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Silicon Power SSD specs:

- SP Slim S55

- SP Slim S60

Both offer SATA II (3.0 Gb/s) & SATA III (6.0 Gb/s) support.

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I can find where the S55 is backward compatible to SATA II but not the S60.

Try the new drive in the hard drive bay by itself.

It makes no sense to boot from the old slow drive.

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Old drive is not slow, it's another SSD. I just wanted an additional SSD for more space.

That's a waste of money and speed for a storage drive. Go with something like a 7600 Seagate Barracuda.

you're absolutely right, i realized that I don't really need the speed on a storage drive after I bought it...

Tried the HD caddy by itself, same thing, doesn't turn on, should I get a new HD caddy?

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Depending on your exact system you may not be able to add the second SSD due to a issue within the system its self. For referewnce: OWC - Data Doubler review the notes at the bottom for your exact system. Sadly, neither of the SSD's you have here will work if your system only supports a SATA II drive. The rub is the SSD you have, have auto sense technology in the SSD's to set the SATA speed so it will try to latch in on SATA III but it can't so it fails. You need a fixed SATA II drive not an auto setting unit.

As to why your system isn't booting up with the optical drive carrier you have now I suspect is because its bad. You'll need to try to connect your SSD externally using an adapter like this: Startech 2.5" SATA to USB adapter

Your only other option is to get a larger SSD for the HD bay replacing the drive you have there now.

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My mbp model identifier is 8.2 which means it doesn't reliably support 6G SSD in the optical bay and both my drives are 6G. Looks like I'll just format my OEM old HD and put that in there instead just to use for space since that's all i really need it for. Thanks for the tips, hopefully it works!

Hold that thought! Only the HD SATA port has crash guard technology. So the if you place the HD in the optical drive bay you really need to be careful as you can kill the drive with a bang or moving the system while the drive is running. We gave up doing dual drives do to both the optical drive speed issue and when we tried the same thing moving the HD over the sales force ended up killing them within a few months.

Apples drives don't have it within the drive. Also you may find the drive is a SATA III not SATA II which is what you need here.

I would just get a bigger SSD for the HD port and call it a day. Or if cost is an issue look at a hybrid drive (SSHD) it gives you the deep storage of a traditional HD and the benefit of speed of the SSD as its used as a cache. I would go with a 1 TB/32 GB drive.

Sorry ;-{

Yeah, I just put it in my old apple standard HD into the optical, MBP still doesn't power on :(

I don't get it, how are so many others able to have two drives? I still think the problem is with my optical bay for some reason...

By the way, just tried optical bay by itself and same thing happens, so assuming now its a problem with the bay

At the time point many people did this they were using older fixed speed SATA II SSD drives in the optical drive bay so that was less of an issue as it just worked! Today thats not possible as most SSD makers switched to auto sense technology so they could sell their drives to both older & newer system owners. The rub here is in the MacBook Pro series (and some Mac mini's) Apple didn't update the design for the optical drive logic when it went to SATA III support on the HD. All of their optical drives are SATA II. Now today things are changing again! Many HD and SSD makers are dropping SATA II support as the number of the older systems still in use is almost gone (only offering fixed SATA III drives). So MacBook Pro owners trying to do dual drive setups just can't get the needed drives.

The ones that tried doing the dual drive setup by swapping the drives around got a nasty surprise! As the drives would crap out in a few months. Some people just assumed the drive was on its last legs (which could be true) others who knew better realized the lack of head crash protection in the drives Apple used was the real issue. For awhile many drive makers had two drive offerings ones with crash guard and others without. But they phased this out as the systems went to SATA III. Today you'll be hard pressed to find a drive with it onboard.

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SOLVED: the problem was with my optical caddy. Got the OWC Data Doubler off Amazon and everything works perfect now.

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