Help! Macbook Pro Ram installed at Wrong Speed

Discussion in 'MacBook Pro' started by Ozes, Aug 19, 2012.

  1. Ozes macrumors newbie

    Joined:
    Aug 19, 2012
    #1
    Hello Macbook pro masters... I need some help!

    I have a late 2009 Macbook Pro. Its system requirement for ram is: DDR3 1066mhz

    Today I went into a computer shop to buy some ram for my macbook pro to upgrade from 4gb to 8gb. He said that he would install some kingston ram 4b DDR3 1066mhz but would need to run a test on it to make sure it works... after 45 min the test failed and he then put in a pair of Trancend 4gb in. The 2nd test was over 1hour and a half long but it passed. First I was a little upset because i dont know anything about transcend ram. And then I saw the package for it was 1333mhz. I asked him about the speed and he said it wasnt a problem and my mac would downgrade the speed.

    Is this ok for my mac?

    Specs


    Model Name: MacBook Pro
    Model Identifier: MacBookPro5,5
    Processor Name: Intel Core 2 Duo
    Processor Speed: 2.26 GHz
    Number of Processors: 1
    Total Number of Cores: 2
    L2 Cache: 3 MB
    Memory: 8 GB
    Bus Speed: 1.07 GHz


    Current Ram Specs

    Memory Slots:

    ECC: Disabled

    BANK 0/DIMM0:

    Size: 4 GB
    Type: DDR3
    Speed: 1333 MHz
    Status: OK
    Manufacturer: 0x014F
    Part Number: 0x4A4D313333334B534E2D3447202020202020
    Serial Number: 0x00098AC7

    BANK 1/DIMM0:

    Size: 4 GB
    Type: DDR3
    Speed: 1333 MHz
    Status: OK
    Manufacturer: 0x014F
    Part Number: 0x4A4D313333334B534E2D3447202020202020
    Serial Number: 0x00098AC7

    Thanks for all your help!!!
    Oz
     
  2. sth macrumors 6502a

    Joined:
    Aug 9, 2006
    Location:
    The old world
    #2
    If the RAM test passed, it should be fine.

    In fact, it's quite nice of the shop to actually run a memory test after installing it (which is the right thing to do but not every shop does it).
     
  3. SandboxGeneral Moderator

    SandboxGeneral

    Staff Member

    Joined:
    Sep 8, 2010
    Location:
    Orbiting a G-type Main Sequence Star
    #3
    Yes, that's perfectly fine for your Mac. The faster RAM will run at the bus speed of your Mac; 1066MHz.
     
  4. brand macrumors 601

    brand

    Joined:
    Oct 3, 2006
    Location:
    127.0.0.1
    #4
    Technically it is running at the right speed since your Mac is not capable of running at 1333MHz.
     
  5. alphaod macrumors Core

    alphaod

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    Feb 9, 2008
    Location:
    NYC
  6. iAppl3Fan macrumors 6502a

    iAppl3Fan

    Joined:
    Sep 8, 2011
    #6
    you're fine. you got a slightly more expensive ram for less since it more capable. your computer will just downgrade the speed to the right bus speed if needed.
     
  7. Ozes thread starter macrumors newbie

    Joined:
    Aug 19, 2012
    #7
    Thanks so much!

    Thanks so much! For all your help :) Now all i need to figure out is why I only get 1 1/2 hour battery life!!!
     
  8. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #8
    What is your current battery health?
     
  9. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #9
    On a 2009 MBP it's probably because your battery is just old.
     
  10. Ozes thread starter macrumors newbie

    Joined:
    Aug 19, 2012
    #10
    I get a message that says service your battery. But other times it says my battery health is normal. I still have warranty will this be covered?

    Thanks
     
  11. sth macrumors 6502a

    Joined:
    Aug 9, 2006
    Location:
    The old world
    #11
    If the battery doesn't have a huge number of cycles, Apple might exchange it for free. It's worth a try.
     
  12. Dangerous Theory macrumors 68000

    Joined:
    Jul 28, 2011
    Location:
    UK
    #12
    Very unlikely. A 3 year old laptop still retaining 1.5 hours is pretty reasonable to me. How many cycles has it done?
     
  13. sth, Aug 20, 2012
    Last edited: Aug 20, 2012

    sth macrumors 6502a

    Joined:
    Aug 9, 2006
    Location:
    The old world
    #13
    For an old model, maybe (they were rated at just 300 cycles).

    However, my 2.5 years old uMBP still does 6h at ~400 cycles.

    For the 2009+ unibody MBPs, Apple claims: "The built-in battery in the new 13-, 15-, and 17-inch MacBook Pro is designed to retain up to 80% of its original capacity at up to 1000 full charge and discharge cycles.".
     

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