Error: 4MEM/60/40000000: 0x814a5b90

[3809326]

I have been trying to figure this error out, and have found no answer.

Basic background of issue: From one instance to another, my Macbook went from working fine to unusable. My hard drive is unbootable, and I have tried everything to salvage my information inside. I bought a USB hard drive adapter to see if it would boot up this way, but Disk Utilities does not let me mount the drive although it reads it. Based on the Apple Hardware Test, this error is related to memory. I have 8GB of RAM, so I don't know how, or if, it is related to the hard drive not booting.

Any help would be appreciated!!

 

[T5BRICK]

Did you recently upgrade your RAM?

I'm just guessing here, you aren't really giving enough information to properly troubleshoot your issue.

Also, why don't you have a backup? Your data may be gone.

 

[3809326]

Thank you for replying!

No, I did not upgrade the RAM whatsoever. I requested it to be 8GB when I ordered through the Apple Store. As for the backup, I have learned my lesson. Believe me, I am kicking myself for not doing this. This is why I'm desperately trying to salvage the hard drive, so I can retrieve the most I can.

Here is some additional background: A few weeks ago, I downloaded Adobe Suite CC, and began using Premiere heavily as I create films. I had to render a lot to work on my videos, and everything was fine. In an instant, my screen froze, shut down, and when I restarted the MacBook, I received the "Grey Screen of Death". I never had a problem with the MacBook, and now, all of this occurred.

 

[T5BRICK]

How full was your HDD when this happened?

*edit* and there may also be something wrong with your RAM. Does the MBP have any warranty?

 

[DeltaMac]

Can you tell us exactly which model of MBPro you have?

 

[3809326]

My HDD was 30-40% full, with a combined HDD space of 550GB.

Unfortunately, it is out of warranty. My MBP is early 2012, 2.5ghz, 13".

Would the RAM truly be the culprit? Would it prevent the hard drive from booting/mounting.

 

[DeltaMac]

Yes, bad memory can cause a variety of really odd problems.

And - you are getting hardware test error codes that point to a memory problem.
Easiest test (and might even fix the problem completely) is to try reseating your RAM memory. Your MBPro is still one where that is simple, and you can easily replace that memory if you continue to get that memory error even after reseating. You don't get that choice with the newer MBPros.
http://support.apple.com/kb/HT1270#link1

That simple reseat of the RAM is a first step that a repair tech would often use - and can be a good, permanent fix.

 

[3809326]

Thanks for the tip, DeltaMac!

I will try doing this, and put up the result.

 

[3809326]

After running an Apple Hardware Test on each stick of 4GB RAM separately, reseating each one on a different port, one of them came back with the 4MEM/62/40000000: 0x8148cb90.

So, it seems to me, that it is damaged. I took it out, and still cannot get my hard drive to boot/mount.

At this point, I'm thinking it's combination of everything (hard drive, hard drive cable, RAM). Who knows...

 

[3809326]

I figured I would post an update if someone finds themselves in similar shoes. Well, I ended up installing Snow Leopard on an external hard drive, and using my MacBook of that drive momentarily. I went ahead and got Stellar Mac Data Recovery, and was able to retrieve all of my files. Based on what I see, the hard drive is shot, which means I can no longer use it to hold any type of file. To confirm this, does anyone know a sure fire way to test hard drives for use before I remove it from my life? On a positive note, a new SSD drive is on its way.

 

[Freyqq]

You can run a disk sector test, but I'm not sure of a good OSX program that does that.