SATAII on the new MBP

Discussion in 'MacBook Pro' started by joshuakarjala, Apr 14, 2010.

  1. joshuakarjala macrumors newbie

    Nov 14, 2008
    As an owner of the mid 2009 15" MBP - I have read a lot about the troubles people trying to upgrade to SSD's have had with the SATAII interface of their notebook.

    Has anyone gotten one of the new i5/i7 and tried out various 3rd party drives?

    I'm looking to upgrade to this new revision - but wan't to be sure that I can upgrade to 3rd party drives later.
  2. Hellhammer Moderator


    Staff Member

    Dec 10, 2008
    I can't 100% confirm but can't see why 3rd party drive wouldn't work. Some SSDs don't work well with Macs and '09 MBPs had SATA2 limited to 1.5Gb/s but a firmware update fixed it back to 3Gb/s
  3. joshuakarjala thread starter macrumors newbie

    Nov 14, 2008
    The problem was that though this firmware update allowed SATAII - there were still stalling issues and IO errors. These were reported to be due to a poorly shielded SATA cable running to the drives. Several users were able to fix the problem by manually shielding or replacing the cable.
  4. Maximus434 macrumors regular

    Jan 11, 2006
    I also heard a possible bottleneck could be the voltage, the sata controller was initially underclocked by apple to preserve battery life, and the 1.7 update didn't address that.

    I'll have my 15" i5 by Friday and I'll be opening it immediately to install my 120Gb OCZ SSD. If it doesn't work, the MBP is going straight back.
  5. mdnz macrumors 6502

    Apr 14, 2010
    The Netherlands
    I'm not quite sure if that was the reason. An SSD uses way less energy than a traditional hard drive.
  6. m85476585 macrumors 65816

    Feb 26, 2008
    The drive power is not the same as the controller or interface power. The controller will take more voltage to run faster, and a faster signal might take more voltage to transmit reliably. The drive has its own power connection which is completely independent from the controller power.

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