Samsung SSD 840 freezes OSX Lion on MacbookPro Early 2008

I've upgraded my Early 2008 Macbook Pro with Samsung SSD 840 drive, but I'm struggling with system freezes when using Lion and Mountain Lion. Even such simple task like opeing/closing information sections in Finder are making my system freeze - look on the video below how the counter is behaving.

What is interesting, there was no such problem when using Leopard or Snow Leopard.

The fact that Lion and Mountain Lion is not performing well on my Macbook pro is not matter of a little bit out-dated hardware, because I was using another Macbook Pro with original HDD on Mountain Lion and every thing was orking perfectly. So I guess that there is a compatibility issue between Samsung SSD 840 and Macbook Pro Early 2008 on Lion / Mountain Lion.

Check this video to see what I'm talking about: http://www.youtube.com/watch?v=QLfuy_6Dwfo

Anyone knows how I can solve this issue?

MacBook Pro, OS X Mountain Lion (10.8), Early 2008

Posted on Apr 15, 2013 12:05 PM

65 replies

bwu224

Level 1

5 points

Nov 17, 2014 4:35 AM in response to Ammentorp

Hi Ammentorp

Sorry to bring up an old question!

Did you manage to find a final solution? Did you use Samsung 830 in the end?

I have the same laptop, installed a sandisk ultra+ ssd in SATA slot and moved the original HDD to optidrive slot. I used to get crashes in Mountain Lion, now Yosemite stops it from booting completely.

Thanks

Nov 17, 2014 6:40 AM in response to bwu224

Ho - and thanks for your concern:

I got an 830, installed it and made an AppleScript dismounting the HD in the optical bay. And it works

If I want to mount the HD, I have another script mounting it. I then copy whatever I want and then unmount it again.

regards

Martin Ammentorp

bwu224

Level 1

5 points

Nov 17, 2014 6:58 AM in response to Ammentorp

Thanks for the reply.

So the issue is actually running 2 drives at the same time? It's strange as I thought the SATA and IDE were separate buses. It is a shame we cannot run both drives all the time. Can I ask which OS you run on it and whether you enabled Trim again?

Thanks

Nov 17, 2014 7:09 AM in response to bwu224

Yes - two drives: SSD in HD-place, old HD in optical.

OS: Mountain Lion

regards

Martin Ammentorp

Nov 18, 2014 6:22 AM in response to Ammentorp

This is a wonderful and very informative thread. Much food for thought.

I have started to have what I feel is a 'similar' problem on my macbookpro 6.2 (core i7 and 8GB ram) running 10.6.8 with OWC 480GB drive in the optical bay.

Thanks.

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Samsung SSD 840 freezes OSX Lion on MacbookPro Early 2008