You can make a difference in the Apple Support Community!
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
So I have a Samsung 850 EVO installed in a Akitio Thunder 2 Quad. On this SSD, I have OS X 10.11.6. When I boot up my Mac Pro (2013-black), the screen remains dark. When I remove the Samsung from the bay, the Mac boots up without issue's using my internal drive.
Does anyone know what would prevent the Samsung drive from booting up OS X externally? Thanks!
How was OSX installed on the Samsung drive?
If you reconnect the drive after booting from the internal drive does System Preferences>Startup Disk show the external drive as a startup disk?
Have you tried moving the Samsung disk to another bay?
Are there other drives in the enclosure?
Does the Samsung drive have the latest firmware?
Does that drive have the correct SATA interface for the enclosure, and the correct access method? they sell EVO 850 drives with a different interface, and with a different access system (NGFF) inside. NGFF are not bootable.
Hi lllaass,
Here are answers to your questions.
How was OSX installed on the Samsung drive? I used SuperDuper. That's always worked for me.
If you reconnect the drive after booting from the internal drive does System Preferences>Startup Disk show the external drive as a startup disk? Yes, I can also see the drive when booting up holding the Option key.
Have you tried moving the Samsung disk to another bay? No, this is the next step. But I did try another enclosure and it still wouldn't boot.
Are there other drives in the enclosure? Yes, the enclosure holds 4 drives.
Does the Samsung drive have the latest firmware? I tried looking for the latest firmware, but cab't find it anywhere.
Notice the two pictures. The folders in the internal drive are correct. When I SuperDuper'd the internal to the external drive, the external drive looked identical, but after I tried to use the external as a boot up drive, it created extra folders which you can see in the pic below.
I don't know how to proceed. Maybe it's just a firmware issue, but I can't seem to locate that. Thanks!
Hi Grant,
If I don't use the SSD as a boot up drive, it works perfectly. Only when I try to boot with it, it doesn't work. I don't know what a NGFF is but I'll look into it. Thanks!
Here's the info on this specific SSD.
You said "
But I did try another enclosure and it still wouldn't boot.".
What type of enclosure did you try?
Do you have a link to the description on the Vendor's site where you bought it?
Sorry IIIaass, not an enclosure, but a Newer Technology Voyager Q Dock.
Grant, I think I purchased it at Fry's Electronics, but not certain. I took a pic of the drives info.
As a test I would do a fresh install (using the OSX installer downloaded from the Mac App Store) of the version of OSX that is now on the SSD and the EVO 850. That will help determine if it is the clone or the SSD.
I'll do that. Maybe the carbon copy isn't taking. I'll let you know if that worked. Thanks!
That looks like a genuine SATA drive. From a Hardware perspective, it should not be bootable.
HI Grant, what do you mean it shouldn't be bootable? Aren't SSD bootable?
I am sorry. I revised what I said three times and it still came out wrong. I MEANT to say it should definitely be bootable as far as Hardware goes. I edited my message too many times and messed it up. I am very sorry.
No problem Grant. I appreciate your help.
Samsung 850 EVO as boot drive doesn't work
