20" intel iMac - Do I have the right RAM installed?

Discussion in 'iMac' started by Passive101, Dec 6, 2008.

  1. Passive101 macrumors regular

    Dec 5, 2008
    This sounds like a strange question. I got the computer in a trade with someone else. Crucial's program says I can use 200-pin SODIMM, DDR2 PC2-6400

    When I go into system profiler it says I have this
    Size: 1 GB
    Type: DDR2 SDRAM
    Speed: 800 MHz

    Why is it showing 800mhz only? Is that even possible?

    My second question is this. I have 2 sticks of RAM from my old macbook that are 512MB each that are PC2 5300. Would it be faster if I put 1 or both of those in instead of the DDR2 800mhz RAM?
  2. czachorski macrumors 6502a


    Sep 24, 2007
    That's the speed of the RAM, not the CPU - and it sounds right. Putting in those 2 512 MB sticks would not be any faster - it might be slower, as the older RAM may have a slower speed, if it is even compatible with your iMac.

    If you really want a speed / performance boost, go to OWC or Crucial or Ramjet and grab a 4 GB set of RAM (it's really cheap right now), and max that baby out!
  3. Tallest Skil macrumors P6

    Tallest Skil

    Aug 13, 2006
    1 Geostationary Tower Plaza
    What model of iMac is it? That's really rather important in determining what RAM you need.
  4. Passive101 thread starter macrumors regular

    Dec 5, 2008
    20" core 2 duo imac. i have a 128mb 2400XT video card.

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