SATA support for 5,1 Model

Discussion in 'Mac Pro' started by bedifferent, Apr 30, 2012.

  1. macrumors 603

    bedifferent

    Joined:
    Jan 8, 2009
    Location:
    NY
    #1
    I've got the current gen Mac Pro 12-Core, I have the four SATA bays occupied and a 240GB OWC Mercury EXTREME Pro 6G in my second optical bay partitioned with SL and Lion (yes I know it only supports SATA II for now), with a Blu-Ray drive (and thank god you can play Blu-Ray in OS X now).

    My question:
    The logic board has 6 SATA ports. I have another SSD I'd like to use, but am out of SATA connections. If I were to get an eSATA PCIe card, would I need to plug in one of my SATA connections in order to gain an extra SATA port via the eSATA card? Or is 6 SATA II connections the max the board can support?

    Thanks for any help! Hope everyone is having a great Monday (whatever day it is in your country) :)
     
  2. macrumors 601

    derbothaus

    Joined:
    Jul 17, 2010
    #2
    The PCI card has it's own controller. It does not work like a USB hub or anything.
     
  3. thread starter macrumors 603

    bedifferent

    Joined:
    Jan 8, 2009
    Location:
    NY
    #3
    Excellent. So I'll be adding two ports or such. Speed wise eSATA should be the same speed as my internal SATA, just externalSATA, correct?

    Thanks again for your help! Shame "Light Peak"/"Thunderbolt" PCIe cards aren't possible, but got a USB 3.0 card that makes a difference until the next Mac Pro refresh.
     
  4. macrumors 601

    derbothaus

    Joined:
    Jul 17, 2010
    #4
    Yes. Quality of controller does play a part in overall speed. Might want to get a 1xPCI lane 6G SATAIII card. It wont hit 6Gb/s but you'll have some added headroom for your 3G stuff. That's what I'd do. There is a cheap one that is bootable too here:
    http://tonymacx86.blogspot.com/2011/08/increasing-disk-performance-sata-6gbs.html

    They have internal and external and mixed versions of the chipset all over the tech world. Just look for ASM1061 Chipset.
     

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