Optibay HDD unsafe?

Discussion in 'MacBook Pro' started by 2Turbo, Mar 26, 2011.

  1. 2Turbo macrumors 6502


    Feb 18, 2011
    I found a quote on here that claims installing a HDD in the optibay is unsafe. Is this really true? What are your thoughts?
  2. msriotdoll macrumors member

    Dec 1, 2005
    i'm curious about this too as i just updated to a ssd and are using the optibay for the regular HD. where did you read this?
  3. RedReplicant macrumors 6502a

    Mar 31, 2010
    Modern harddrives will automatically park the heads by using the power generating from the still spinning platters in the event of a power loss.

    I would imagine the greater risk is that the drive is hard mounted in the optibay, vs rubber dampers in the normal spot.
  4. 2Turbo thread starter macrumors 6502


    Feb 18, 2011
    Well the samsung drive I'm looking at has a g-sensor for freefall protection.
  5. apd macrumors member

    Mar 8, 2011
    I mounted the SSD in the Optibay and the HDD in the HDD bay. Seemed like the most sensible option for a host of reasons
  6. aa521490 macrumors regular

    Dec 25, 2007
    Same here with no problems yet.
  7. AppleScruff1 macrumors G3


    Feb 10, 2011
    On the 2011 MBP the Optibay slot is SATA 2 and the HDD bay is SATA 3.
  8. NZed macrumors 65816


    Jan 24, 2011
    Canada, Eh?
    thats why most people would put in a SSD instead of a HD

    or at least many people i know...
  9. superericla macrumors 6502

    Sep 27, 2010
    Or you could always put an SSD in both places and make a raid. :cool:
  10. NikFinn macrumors 6502a


    Jun 22, 2009
    I wonder how noticeable the real world difference is between having an SSD in a SATA 2 slot instead of one that supports SATA 3. It's good to note that currently there aren't nearly as many SATA 3 SSDs as there are SATA 2 SSDs
  11. legreve macrumors regular


    Nov 22, 2010
    However a raid confined to sata 2 :\
  12. AppleScruff1 macrumors G3


    Feb 10, 2011
    We'll be seeing more tests of SATA 3 drives as they come to market. I'm curious to see the difference too.
  13. Robbug macrumors member

    Nov 3, 2010
    Either there is no solid info out there or my googlefu is in the dumps today...

    So - I intend on installing a 750 Gb drive in my optibay. I am going for the 7200 Seagate Drive with their SMS like system

    My current system: 2011 15" with a 256Gb SSD preinstalled.

    1. Is there a definitive answer as to whether or not the SMS will work with a drive in that bay? (Apple's SMS - I understand the Seagate has it's own built in)

    (Qualifier: As I understand it, SMS is tied to the SATA bus. The SATA bus directly reports to the CPU. With that, would it not matter where the hard drive is installed as long as the OS recognizes the drive is of the spinning platter type?) Sorry if I am not clear.

    2. Vibration control. Most rubber grommet mounting styles are that - rubber grommets. For those of you that have stock drives, do those drives have mounting grommets?

    My follow on question would be - could not one manufacture rubber grommets to provide a similar vibration absorption system if said system is installed with the stock drive? If no grommets are installed on the stock system then the question is moot.

  14. axu539 macrumors 6502a

    Dec 31, 2010
    1. The main reason people put HDDs in the HD bay on MBPs is that the MBP itself has an SMS. If your Seagate drive already has an SMS built in, you'd be better off putting your HDD in the optibay, since the 2 SMS's will conflict with each other and cause problems. The Seagate's SMS will work fine in the Optibay.

    2. I'm not sure that most 7200 RPM laptop drives really vibrate all that much. The vibration is likely going to be negligible, and most optibays will simply cover up the sound/vibration anyway.

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