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  • bfer Level 1 (0 points)

    Hi rbrizola,


    I'm quite intrigued about the part you say that you could boot your Macbook Pro 15" with 16gb but only having kernel panic after some minutes... So can you actually log in/start with Mavericks?


    Have you experement  booting your system with one 8gb and one of your old modules? I'm, guessing 2gb ou 4gb, as they have the right "speed", this may force your faster 8gb to run at a lower clock matching the slower ram module. Mind that this may not work!

    The 16gb ram you are currently using is too fast. 1066MHz is the correct


    Also which of the graphic cards is your Macbook Pro using when it boots up? Intel or nvidia?

  • rbrizola Level 1 (0 points)

    Hi @Bfer!


    Sure. Sorry, but how do I get those logs?


    I tried to boot with 12gb (the new 8gb and my old 4gb) as you said and I got the almost the same behaviour: before the kernel panic, the system shows artefacts (like when you have problems with the video card). Mine video card is Intel HD Graphics.


    Im attaching some photos/prints of the memories and my tries.


    @Jay_or , as you can see in the pictures below, my "original" memories (2x 4gb) have 1333mhz clock, buy they are adjusted to 1067mhz when running in my machine. The new 16gb would not have to follow the same principle?



    foto 1.JPG

    My mac with the new memories.


    foto 2.JPG

    My old/current memories, 1333 mhz.


    foto 3.JPG

    The box of the new memories.


    foto 4.JPG

    Kernel panic after a while.


    Screen Shot 2013-11-20 at 11.51.44 AM.png

    After install the new memories. They are running at 800 mhz (???)

    Screen Shot 2013-11-20 at 11.51.53 AM.png


    Screen Shot 2013-11-20 at 12.02.59 PM.png

    When I tried the old and new memories together. Still 800 mhz.


    Screen Shot 2013-11-20 at 12.03.05 PM.png


    Screen Shot 2013-11-20 at 12.17.33 PM.png

    Back to my current memories. Note, although they are 1333 mhz, they are running at 1067 mhz.


    Thank you very much! =)

  • bfer Level 1 (0 points)

    Hi rbrizola,


    VERY interesting!

    right! can you do a bit more testing?

    Boot your system with the stock ram and instal this

    shut down, swap your ram, instal the 16gb and once on osx Mavericks use gfxCardStatus to force the nvidia graphics.

    See if the system is able to keep on without any panics.

    Again this may not work since your ram is 1666Mhz

    Regarding your 1333Mhz ram, possibly the system is a bit more tolerante with them and not with the 1666.


    Report back your findings and thanks for contributing!

  • rbrizola Level 1 (0 points)

    Hi bfer!


    I tried what you said, but with no luck. After a few tries getting kernel panic in the boot, I finally got to force use nvidia graphics, but after a while the system crashed again.




    Anyway, thank you very much!

  • Jay_OR Level 1 (0 points)

    I don't understand, you have a Intel Core i7 of 2.8GHz in a model of 2010 15in? O_o

    which is actually the version of your processor? 2.66GHz Intel Core i7 ?


    Your original ram is that? Transcend ?

    Are you sure that is the original RAM?

  • rbrizola Level 1 (0 points)

    Hi Jay_OR.


    Sorry by the noob question, but where exactly do I find de version of my processor?

    The information that I have is:


    Screen Shot 2013-11-24 at 7.05.55 PM.png


    The current 8GB is not the original memory. The macbook came with 4GB 1067mhz (I dont have it anymore).

    In 2012 I upgraded to 8GB.

  • Dude6 Level 1 (0 points)


  • Dude6 Level 1 (0 points)

    You laptop is 15-inch mid 2010 Core i7 of 2.66GHz.

    8GB is the maximum. 16GB will give you kernel panic errors.

  • R. Caldarone Level 1 (0 points)

    Hello everyone, I just read through all the posts on this thread. I'm thinking of overhauling my Macbook Pro 7,1 2.4 GHz Core 2 Duo. Among other things was upgrading to 16GB of ram. I have 8 working now, but since ram is so cheap I figured bumping it up to the max wouldn't be a bad idea.


    All of the confirmed MBPs of my series running 16GB @1066 (PC3-8500) are running pre-Mavericks OS. However I AM running Mavericks, and wondered if anyone here has upgraded and checked?

  • DarkForce Level 1 (0 points)

    My MBP (mid 2010 13" 16 GB) runs with Mavericks.

  • iflookzkill Level 1 (0 points)

    I would like to confirm this as well. I have the exact same model


    13.3" Macbook Pro 7,1

    2.4 GHz Core 2 Duo



    I purchased the following ram:




    The computer did not start, and just made a continuous "beep" "beep" sound until I shut the computer down. (Ram was not passing the self-test). Can someone else confirm they are running the same MBP as mine? Also, what brand/website did you get it from?

  • TheSoundDude Level 1 (0 points)



    You haven't been really clear. First you confirm it works and then "beep" "beep" sound - it doesn't!?


    So what's it gonna be?

  • TheSoundDude Level 1 (0 points)

    And a general question for the guys that have made it work.


    Is it worth the trouble and money? Is it significantly faster?


    Thank you.

  • ThetaSigma312 Level 1 (0 points)

    I have been interested in upgrading my Macbook Pro 17" i5 (2.53) (6,1) to 16GB of RAM, and I have read most of this thread. It appears that the general concensus is that Macbook Pro models 6,1 and 6,2 respectively cannot seem to fluently access 16GB of RAM, however with a quick Google search, I came across this post on ifixit.

    I will quote the first comment: Also as an update. with Mavericks installed, I upgraded and ran 16GB on a 2010 17" Macbook Pro (2.53Ghz i5 with nVidia GT330M 512MB) which were all previously software limited to only 8GB!!


    So it would seem that under Mavericks it can boot correctly. I would love to test this out if I could, but I'm not in a position to do that. I currently have 4GB installed, which frankly, is not cutting it anymore. I temporarily had 8GB (1333mhz) installed, and it downclocked the chips to 1067. The chips are my brothers, so I had to return them.

    I want to officially update to more RAM, so it would be nice to hear a good report on 16GB, or if I'll just have to settle for 8GB.


    On a side note, my brothers Macbook 5,1 runs 8GB of RAM clocked at 1333mhz (not downclocked) without a hitch, even though Apple officially supports 4GB at 1067mhz. His computer crashes sometimes, but when I replaced his RAM with mine to see if it was because of the speed difference, it still crashed. However, mine chumped up that 8GB like it was made for it!

  • ThetaSigma312 Level 1 (0 points)

    And another post detailing more.

    It seems that with Mavericks it gets a lot further than with anything else previously.

    Obviously the KP in that post isn't a good sign, but it is interesting how it was able to work up to a point. (Outside of Safe-Mode)

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