Macbook 5,1 Aluminium with Intel SSD 520 at only 1.5 gigabit negotiated speed

Discussion in 'MacBook' started by vincentchan, Mar 9, 2012.

  1. vincentchan, Mar 9, 2012
    Last edited: Mar 9, 2012

    vincentchan macrumors newbie


    Jul 10, 2009
    So I've just installed my new Intel 520 SSD into my late 2008 Macbook. I've read that the 6Gbit SATA 3 speed of the SSD would be scaled down to SATA 2 speed because my Macbook doesn't support SATA 3. But my system currently operates at just SATA 1 speeds (only 1.5 Gbit are negotiated)

    Does anybody have the same problem? Any solution to this?
  2. cansande macrumors newbie

    Mar 17, 2012
    I am with you on this battle

    I recently purchased an intel 520 due to favorable review from just about

    everyone, but especially anand from . I purchased a product

    similar to the data doubler to get two hard drive bays in my macbook 5,1 late

    2008 unibody. The thing is the when my Western Digital 320gb was in the

    extra, just installed data doubler bay, it was at 3gigabit negotiated and the

    original bay was 3gbit, where the 520 resided, but only negotiated at 1.5

    gigabit. So my thinking was to switch them and have the intel ssd at the 3gbit

    speed. No dice. The 1.5 gigabit stayed with the intel drive, not the bay. This

    is very frustrating as the data doubler was no fun to install and I spent 199.99

    on amazon only to have the thing go on sale the next day @ 179.99. There

    recently has been an efi update to get the 1.5 to 3, but only for 2009 and up.

    As time goes on, the likelihood that we get an update for an older 2008 model

    decreases. So, do I return the ssd or buy a newer mac? I will try to attach my

    numbers which are really bad. By the way it is worth mentioning that

    thunderbolt, which is included in newer macs is suppossed to be 60% faster

    than sata 3. I have seen an intel video where the raided Lacie put out over 1

    GIGABYTE (for clarification) per second. Any ideas or can anyone add any

    thoughts or correct my mistakes. Sorry for the long message, I am a little

    frustrated this AM.

    Attached Files:

  3. sillypooh macrumors regular


    Jun 25, 2010
    Same Macbook here. Will be getting an AData S510 120GB tomorrow. Apparently the SandForce controller in there is supposed to be OK to support Sata II with this laptop. I'll post my results. But I just discovered this issue and I'm not happy either of the possibility that this might all be for nothing. BTW I don't think this has anything to do with Intel SSDs. The laptop with a normal HDD will show "1.5GB negotiated".
  4. sillypooh macrumors regular


    Jun 25, 2010
    No luck there. I get 1.5Gbit negotiated. Although it's faster, it's not super fast...

    It's not fair that the later model (Early 2009 Pro) got an EFI update (1.7) that fixed this issue and not the late 2008 Macbook that has the same hardware!

    What now?
  5. mpress macrumors newbie

    Mar 21, 2012
    @vincentchan: the Cherryville 520 actually works for you? :confused: Its not even usable for me :(

    My experience with it here:

    I have strong reason to believe it is the SandForce controller. I installed an HDD with SATA III and it works fine. Link speed and negotiated link speed is both 3 gigabits.
  6. Montymitch macrumors regular


    Feb 16, 2009
    I just ran the test on mine: Write speeds avg about 130 MB/s and read speeds avg 230 MB/s
    I've got a 5.1 with Intel SSD.

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