Installed new 3gb/s HDD on Macbook,but only displays 1.5!

Discussion in 'Buying Tips and Advice' started by paulyd0021, Feb 24, 2010.

  1. paulyd0021 macrumors newbie

    Dec 23, 2009
    Hi guys, I just installed a new 3gb/s hard drive in my macbook pro

    here's the hard drive I bought:

    It installed and works fine, however under System Profiler it says its only a 1.5gb/s hard drive.

    Is this because the Sata port on my mac is limited to 1.5gb/s?

    Its a late 07/08 model 4,1 Macbook Pro 2.4ghz

    Any insight would help, i tried looking up some information on my model but I couldnt find anything on the actual maximum sata speed from the hard drive.

    Thanks in advance! :)
  2. spinnerlys Guest


    Sep 7, 2008
    forlod bygningen
    As you use an HDD (not an SSD) you will not even saturate the SATA 1.5Gbps interface.

    Your HDD will peak at 95 to 100MB/s, SATA 1.5Gbps allows 148MB/s, SATA 3.0Gbps 286MB/s.

    And yes, your MBP model has the SATA 1.5Gbps interface.
  3. BittenApple macrumors 6502a


    Nov 29, 2008
    Unless you have a SSD, you won't notice anything at all. Why? Because the hard drive is slower than the interface.
  4. paulyd0021 thread starter macrumors newbie

    Dec 23, 2009
    Well here's to hoping they make an affordable 500gb SDD someday soon!

    Thanks for the info guys, so I guess I'll be stuck with my measly 1.5 gb/s or as you put it 148mbs transfer rates. Hopefully this will still be a little faster than my previous 200gb 5400 rpm HDD.

    Oh and here's to hoping Apple includes USB 3.0 in the next macbook update, I can wait until summer if thats how long it will take to get that and possibly bluray into a MBP. :apple:
  5. BlizzardBomb macrumors 68030


    Jun 15, 2005
    512 GB SSDs won't be "affordable" until at least 2012 if not later.
  6. spinnerlys Guest


    Sep 7, 2008
    forlod bygningen
    Your old 5400rpm HDD will probably have a maximum benchmark speed of 60-75MB/s, your new 7200rpm HDD 90-100MB/s.

    That is below the SATA 1.5Gbps interface limit.
  7. drummerlondonw3 macrumors 6502a


    Feb 10, 2008
    about 2003 I remember buying a firewire 160gb drive (which I still have) and that was over £100! For the same price now - 7 years later - you can get a 1TB drive. I feel it will be some time before the 500gb SSD becomes the standard and not as much as the laptop itself!

    I'm personally waiting for 320 but will probably bite on the next gen 256
  8. Absent macrumors member

    Feb 19, 2010
    I've posted this story around here before. Ssd's are going to be moving in a lot sooner than people think.

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