lindswah007
Level 1 (0 points)

Q: iMac will only boot in safe mode after ram upgrade

I have a mid 2010 iMac 3.06GHz intel core i3 running Lion 10.7.5. I upgraded my ram from two 2gb chips to two 8Gb chips and now the computer will not boot unless in safe mode. If not in safe mode it will just get stuck on the grey screen with the apple. In safe mode I can check that both chips are recognized (it shows 16 gb of ram in 'about this Mac'). I have used the right specs on the new chips (new ones are g.skill ddr3-1333 pc3-10600/10666 8192MB CL9-9-9 So-Dimm). I have run disk verify (appears to be ok) and repaired permissions. Also reset pram. Any ideas? Much appreciated.

iMac, Mac OS X (10.7.3)

Posted on Jan 14, 2013 8:42 PM

by babowa,Solvedanswer
babowa babowa
Level 7 (32,049 points)
iPad
A:

Well, with four 4 GB, you're still at a total of 16 GB of third party RAM, but it's worth a shot. What's the brand you bought? iMacs are very particular, I only buy from either OWC (macsales.com) or Crucial. Both have lifetime warranties on their RAM.

 

I do a fair amount of video editing/rendering and graphics/photo editing and have been running my 2010 with a total of 12 GB RAM (2 x 2 GB OEM and 2 x 4 GB OWC RAM) because of the problems mentioned; it could use more (video rendering will take its' time no matter what), but I'm pleased in general. But, if you have 2 x 4 in there already, might as well try two more for a total of 16 - just make sure you can return it for a refund if needed.

Posted on Jan 14, 2013 9:41 PM

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lindswah007

Q: iMac will only boot in safe mode after ram upgrade

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  • by lindswah007,

    lindswah007 lindswah007 Jan 14, 2013 9:53 PM in response to babowa
    Level 1 (0 points)
    Jan 14, 2013 9:53 PM in response to babowa

    Forgot to confirm that this is indeed my model. The i3.

  • by babowa,Helpful

    babowa babowa Jan 14, 2013 10:06 PM in response to lindswah007
    Level 7 (32,049 points)
    iPad
    Jan 14, 2013 10:06 PM in response to lindswah007

    Never heard of that brand, but that's not surprising since I'm not in Australia.......

     

    The decision is yours: try it with 16 (as long as they'll take it back if it doesn't work) or go with a total of 12. If the brand was recommended, fine and, as long as it works... can't argue with that. Do they have a warranty on it?

     

    If you go with 12 or 16 total, make sure you match the modules horizontally.

  • by lindswah007,

    lindswah007 lindswah007 Jan 14, 2013 11:51 PM in response to babowa
    Level 1 (0 points)
    Jan 14, 2013 11:51 PM in response to babowa

    I just returned the two 8GB and got two 4GB and am using the two 4GB and original two 2GB (in horizontally matching slots) and everything seems to be working just fine. Hoorah! Thanks very much for your help!

  • by PaulMeuller,

    PaulMeuller PaulMeuller Jan 15, 2013 5:28 AM in response to Kappy
    Level 1 (0 points)
    Jan 15, 2013 5:28 AM in response to Kappy

    I am desperately looking for an answer and just joined this discussion group; if I'm not posting in the right place, I apologize.

     

    On 1/13/13 afternoon, my Macbook Late 2008 running osx 10.8.2 suddenly wouldn't boot up.  Fortunately, I performed a backup to Time Machine that day at 9:23am.  When I entered Recovery Mode, and went to restore, the only backup listed was from December 2011.  Having no other choice, I restored using the December backup. 

     

    But, when I opened Time Machine Backups from the Desktop (a green icon with Time Machine clock/arrow thingy on it) using Option>Browse Other Backup Disks, the 9:23 backup file is there.  How do I get Restore to find/use the 9:23 backup so I can put my computer back the way it was pre-crash?

     

    Thanks in advance -- Paul

  • by babowa,

    babowa babowa Jan 15, 2013 8:19 AM in response to lindswah007
    Level 7 (32,049 points)
    iPad
    Jan 15, 2013 8:19 AM in response to lindswah007

    You're welcome and thanks for the feedback!

  • by lindswah007,

    lindswah007 lindswah007 Jan 15, 2013 3:03 PM in response to PaulMeuller
    Level 1 (0 points)
    Jan 15, 2013 3:03 PM in response to PaulMeuller

    PaulMeuller wrote:

     

    I am desperately looking for an answer and just joined this discussion group; if I'm not posting in the right place, I apologize.

     

    On 1/13/13 afternoon, my Macbook Late 2008 running osx 10.8.2 suddenly wouldn't boot up.  Fortunately, I performed a backup to Time Machine that day at 9:23am.  When I entered Recovery Mode, and went to restore, the only backup listed was from December 2011.  Having no other choice, I restored using the December backup. 

     

    But, when I opened Time Machine Backups from the Desktop (a green icon with Time Machine clock/arrow thingy on it) using Option>Browse Other Backup Disks, the 9:23 backup file is there.  How do I get Restore to find/use the 9:23 backup so I can put my computer back the way it was pre-crash?

     

    Thanks in advance -- Paul

    Hello Paul. This does't seem like it is really appliccable to this topic. You migh have more luck with getting  feedback if you start a new topic. Good luck!

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