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Released October 2008 / 2.4, 2.53, 2.66, 2.8 or 2.93 GHz Core 2 Duo Processor

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Multiple issues after installing SSD

I recently updated my old MacBook Pro with a new battery, 8gb of RAM, 3G SSD, and hard drive cable.

Did a fresh OS instal on the SSD and ran it externally as the boot drive for a week. Everything was great so I installed it into the laptop and immediately started having problems.

Sometimes it doesn’t want to boot, gets half way then just shuts down. Sometimes I can boot to safe mode then get it to restart and load the system all the way.

Once the OS loads sometimes I can start working and all is well until the computer goes to sleep then waking from sleep the computer freezes, spinning rainbow and has to be hard reset. Other times the OS will load then give me a error message “Unapproved caller. SecurityAgent may only be invoked by Apple software.” I cant do anything but hard reset. Reseting the PRAM and SMC doesn’t seam to have an effect.

Looking up these issues I saw many people pointing to the hard drive cable being the cause. So I changed that out with one from IFIXIT and the exact same problem is still happening.

I took the SSD out of the laptop and put the original hard drive back in and everything runs great. So then I went back to booting the SSD externally and it runs great. So I only experience problems when the SSD is installed in the laptop.

Not sure what to try next.

Any help figuring this out would be very appreciated.

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Did you set the Startup Disk setting in Preferences?


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I suspect the format on your new drive. While a drive does not need to be formatted for Mac to boot from it externally, it has to be a Mac format to boot from internally.

Now as to which format, if you stayed with Sierra or below, formatting GUID Mac OS X Extended is fine. If you pushed it to High Sierra it may try to imposed APSF formatting, (which I really don’t care for on none Apple drives.

So what did you install?

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Hey Mayer

Thanks so much for your reply.

I formatted the SSD to Mac OS Extended (Journaled) then did a fresh install of OS X Yosemite 10.10.5

I can try formatting it again or a different OS. Not sure if it would help.


Mark I would jump to El Capitan OS-X 10.11.x



When I tried to install El Capitan it said - OS could not be installed "invalid argument".


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If you go through this guide do you see any abnormal results? Determinare le cause dello spegnimento dei Mac

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The previous shutdowns show all 5.

However, I am have been running off the original drive for a few days now. I will put the SSD back in and run it until it crashes and view the shutdown log again.


Okay! If you put the SSD back in, you can also adjust that 24h to something like 168h (7 days) to go further back.


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I will suggest you to copy the important files and reinstall the MacOS from the recovery partition.What brand of SSD did you purchase.

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Hey iRick28

Thanks for your suggestion.

The SSD and RAM are from OWC. I have had success with their stuff in the past.

I reformatted the drive to Mac OS Extended (Journaled) and re-installed OSX Yosemite multiple times. Sadly I keep getting the same problems.

The drive functions great from a USB enclosure but has all kind of issues when installed to the laptop.


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mark yamamoto sarà eternamente grato.
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