6Gbps SATA

Twenty eight days after Intel launched its Sandy Bridge microprocessors, it announced the stop-shipment of all 6-series Sandy Bridge chipsets. The first shipping version of these chipsets (B2 stepping) was affected by an unfortunate "oversight" that could cause failure in the four 3Gbps SATA ports that branch off the chipset. The remaining two 6Gbps SATA ports were unaffected by the bug.

Most notebooks only use two of the six SATA ports supported by most members of Intel's 6-series chipset family. If a notebook design used the 6Gbps ports exclusively, the notebook would be fine to ship using the flawed B2 stepping parts. With the 3Gbps ports not in use the bug would never show up. Notebooks that used more than just two ports or used at least one of the 3Gbps ports would be affected and would have to be remanufactured with a fixed version of the 6-series chipset. Intel promised to begin shipping fixed (B3 stepping) 6-series chipsets by the end of February.

Apple announced and started selling the 2011 MacBook Pro lineup on February 24, four days before the end of the month. Surely that would be too soon for Apple's manufacturing partners to have received B3 stepping chipsets, built boards around them, integrated them into MacBook Pro designs and shipped them half way across the world to Apple stores all around the US.

Naturally Apple wouldn't comment on what chipset revision was in the 2011 MacBook Pro, so the first thing we did was check to see what SATA ports were in use on our systems.

Here we have the high end 15-inch MacBook Pro. I installed an Intel SSD 510 in the lone 2.5" drive bay and it is connected via a 6Gbps port internally:

So far, so good. The only other bay in the new MacBook Pro is used for the optical drive. And it's connected to a:

...3Gbps SATA port. Uh-oh.

Apple doesn't directly report chipset IDs under OS X. I installed Windows 7 via Boot Camp and headed over to device manager to pull the device ID of the SATA controller: 1C01.

Cross referencing with Intel's datasheets I found that there are two revisions of the SATA controller: 04 and 05. The latter is used in the "fixed" B3 stepping chipsets. And what do we have here at the end of the hardware ID string for the SATA controller?

REV_05.

This is a B3 stepping chipset. In fact, Apple's manufacturing partners seem to have received B3 chipsets before anyone else given that boards were produced, tested and shipped in time for a February 24th launch. It would appear that Apple was among the first if not the first company to receive B3 stepping 6-series chipsets. Although I had concern for the health of the Apple/Intel relationship over the past couple of years, it looks like the two are back to being bedfellows.

Internally there are no visible changes to the MacBook Pro's primary SATA cable. It's still a flex cable but apparently capable of delivering twice the bandwidth of last year's model. Apple doesn't ship the new MacBook Pros with any 6Gbps drives and I would be surprised if it selected anything other than Samsung or Toshiba for SSDs, which means even the SSD options are 3Gbps. Luckily I happen to have a small cache of SSDs, including a bunch of new 6Gbps offerings.

Mostly No QuickSync Apple's SSD Strategy
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  • brettski - Thursday, November 10, 2011 - link

    Total NYC sales tax is 8.875%.
    NY state tax is only 4.5%
  • brettski - Thursday, November 10, 2011 - link

    i'm sorry... state is 4%, city is 4.5%, plus Metropolitan Commuter Transportation District surcharge of 0.375%= 8.875% sorry... mixed up the city and state rates.
  • gstrickler - Thursday, March 10, 2011 - link

    What are you talking about? Most of us non-gamers don't even need a dedicated GPU, much less 256MB of graphics memory. I'm currently running on a late 2007, 15" MBP which has an 8600M GPU with 128MB of graphics RAM, and I only use it because there is no IGP on this machine. Once you get to the level of the Nvidia 9400M, IGP is plenty for a non-gamer, and even 32MB allocated to graphics RAM is more than adequate. The exception is if you need OpenCL support, since Intel's IGPs don't support OpenCL.

    I wish Apple offered a 13" MPB with a higher resolution (1440x900) matte display or a 15" with AES-NI and without a dGPU. I could use the faster CPU and HT, but I don't really need quad-core (but it's nice to have it available when on AC power), and battery life is far more important to me than a GPU or maximum CPU speed.

    In fact, what I would really like is a 15" with matte display, no dGPU, Core i7-2720QM (for AES-NI support) with the ability to disable 2 cores/4 threads when on battery power. The 2011 15" lets me get close, if I use gfxcardstatus to disable the dGPU. If I can get software to disable 2 cores when on battery, it'll give me everything I'm asking for, but at a fairly hefty premium ($+150 for the matte display, $+400 for the Core i7-2720QM and Radeon 6750M + 1GB that I'll never use). Of course, what that means is that I'll either get the entry level 15" without AES-NI support and use gfcardstatus to disable the dGPU, or I'll wait for the next update and see if the options are any better.

    Notes to Apple:
    1. Make a matte screen an option on all machines, for no more than a $50 premium (no forced upgrade to a higher resolution)
    2. Offer a 15" without a dGPU (e.g. make the dGPU a separate plug-in module)
    3. Offer a 1440x900 screen for the 13" MPB.

    I doubt I'll see any of those, but it doesn't hurt to ask.
  • tipoo - Thursday, March 10, 2011 - link

    "Most of us non-gamers don't even need a dedicated GPU"

    Most people don't need a truck, that doesn't mean no one does. This is branded as a pro machine, and at nearly 2 grand the GPU doesn't fit the bill.
  • alent1234 - Friday, March 11, 2011 - link

    MAcbooks are thin, long battery life, nice screen and good build quality first. specs second. until sandy bridge came out laptops with long battery life cost just as much as a macbook or more.

    a lot of the people that buy these are mobile pro's who need to use a laptop for hours while away from a power source
  • sync216 - Thursday, March 10, 2011 - link

    256MB is fine for the 64xxM series GPUs. The performance improvement going to GDDR5 and a faster GPU is much higher than the improvement from 256 to 512 would have given. For customers who really need the additional graphics performance (and corresponding graphics memory) apple is offering the very fast 6750M with 1GB.
  • Demon-Xanth - Thursday, March 10, 2011 - link

    ...Apple is more like Sony than Acer? Their core buisness is no longer computers, but gadgets.
  • michael2k - Friday, March 11, 2011 - link

    Um, this was evident in 2001 when the Titanium PowerBook was first unveiled, then the iPod later that year, then the music store in 2004, etc.

    Also, you have it backwards, their core business is computers, they just happen to know how to turn computers into gadgets. They treat the iPod like a computer (firmware updates on a regular basis), which means they aren't disposable. Contrast that to the average phone OEM with Android who won't see updates for longer than 6 months, where Apple pushes updates to their iPhone for over 29 months.
  • jameskatt - Friday, May 6, 2011 - link

    Nearly all of Apple's products are computers:

    Mac Pro = desktop expandable computer running OS X
    iMac = all-in-one desktop computer running OS X
    Mac Mini = non-expandable desktop computer running OS X
    MacBook Pro = high end laptop computer running OS X
    MacBook Air = high end netbook computer running OS X
    MacBook = basic laptop computer running OS X
    iPad = tablet computer running OS X
    iPhone = handheld tablet computer with phone running OS X
    iPod Touch = handheld tablet computer running OS X
    AppleTV = multimedia appliance computer running OS X

    OS X has two variations - Mac OS X and iOS. The core operating system is the same for both.

    Apps for both are written using Apple's XCode Development System.
  • quiksilvr - Thursday, March 10, 2011 - link

    I'm surprised SSD isn't standard to begin with. $1199 for a 13" laptop and you don't even get dedicated graphics? Seriously? The HDDs aren't even 7200rpm. This is insulting to the nth degree.

    If you want a solidly built, well-spec'd, thin and fairly priced system, get the Envy 14. You get 7200rpm HDD, dedicated graphics, an HD webcam with TWO microphones (necessary for sound cancelling), a backlit keyboard and even Photoshop and Premiere.

    Until Apple drops their prices to a realistic and reasonable level, avoid it completely.

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