RAM Upgrade for early 2008 MB Pro - 2GB + 1GB?

Discussion in 'MacBook Pro' started by bear1973, Apr 19, 2013.

  1. bear1973 macrumors member

    Jun 28, 2006

    I just added a 2GB Crucial DIMM to my early 2008 MB Pro. I thought adding one 2GB would bring me to 4GB, but found two 1GB cards in the memory slots. So, I added the new 2GB and kept one 1GB, thinking I'd have 3GB. But according to my Hardware overview, I still only have 2GB.

    Can you use a 1GB and a 2GB DIMM card for a total of 3GB, or do I need another 2GB Card?

    On another note, at least in terms of browsing, it's like I have a new machine. I don't know if it's the new card, but pages are loading twice as fast - right at start-up.

  2. simsaladimbamba

    Nov 28, 2010
    Normally the early 2008 MBP supports up to 6 GB of 200-pin DDR2 SO-DIMM RAM, thus 3 GB should work.

    Go into the Utilities folder, open System Profiler / System Information and check the Hardware > Memory section to see, what is recognised.
  3. bear1973 thread starter macrumors member

    Jun 28, 2006
    This is what it's showing. I'm guessing the second card just wasn't put in properly. I'll reinstall it.

    BANK 0/DIMM0:

    Size: 2 GB
    Type: DDR2 SDRAM
    Speed: 667 MHz
    Status: OK
    Manufacturer: 0x7F7F7F7F7F9B0000
    Part Number: 0x4354323536363441433636372E4D31364648
    Serial Number: 0x00000000

    BANK 1/DIMM1:

    Size: Empty
    Type: Empty
    Speed: Empty
    Status: Empty
    Manufacturer: Empty
    Part Number: Empty
    Serial Number: Empty
  4. simsaladimbamba

    Nov 28, 2010
    The new card seems to be alright, the 1 GB module seems to be not being recognised (?).
  5. bear1973 thread starter macrumors member

    Jun 28, 2006
    Got it - wasn't installed properly!

    The 1 GB card wasn't installed properly - doh! It's all working now.

    But OH MY GOD - I can't believe what one new 2GB card - and now 3GB altogether - does to the performance of this machine. Websites load twice as fast, applications open almost instantly, wish I had done this a long time ago! A couple of weeks ago I dropped this machine and killed the hard drive. I had a new 500 GB HD installed and decided, since I was giving this machine a new lease on life (I was going to upgrade on the next revision), I'd throw some more RAM in it. What a difference. This should get me through 2014 now.
  6. simsaladimbamba

    Nov 28, 2010
    And once you can spend more money on more RAM (another 4 GB module should cost around 60 USD) and even an SSD (80 USD for 128 GB, 150 USD for 256 GB), that machine might even work longer.

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