Photos of Bare iPhone 5S Logic Board Surface, Slightly Narrower Than iPhone 5 Board [Updated]

Discussion in ' News Discussion' started by MacRumors, Jun 17, 2013.

  1. macrumors bot


    Apr 12, 2001

    As noted by Mac Otakara, Japanese parts firm Moumantai has posted three photos of what may be the bare logic board from the iPhone 5S. Unsurprisingly, the shape of the board is nearly identical to that of the iPhone 5 logic board, although it appears to have a slightly different curve along the bottom edge where the logic board would meet the speaker enclosure.

    Front of claimed iPhone 5S logic board compared to iFixit's iPhone 5 logic board photo
    Few details can be obtained from the part, as there are no chips or other components attached to the board, although it does contain a somewhat different placement of screw holes and a tweaked chip layout. The main A-series chip appears as if it will be slightly larger in area than the A6 seen in the iPhone 5, as it takes up a greater width of the logic board.

    Rear of claimed iPhone 5S logic board compared to iFixit's iPhone 5 logic board photo
    Apple's iPhone 5S is expected to launch later this year, perhaps around the September timeframe. Following Apple's pattern of two-year body style cycles, the iPhone 5S will reportedly appear very similar to the iPhone 5 and focus on internal improvements. One differentiating feature may, however, be a fingerprint sensor, which is rumored to be location on or near the device's home button.

    Update 8:32 AM: As noted in our forums by chrmjenkins, the logic board may actually be slightly narrower than on the iPhone 5, meaning that the main A-series chip may be the same size as the A6 in the iPhone 5.
    Article Link: Photos of Bare iPhone 5S Logic Board Surface, Slightly Narrower Than iPhone 5 Board [Updated]
  2. macrumors regular

    Jul 9, 2012
    Here we go again...
  3. macrumors 65816

    Four oF NINE

    Sep 28, 2011
    Soviet Union
    I'm really looking forward to a white 64 GB iPhone 5S to replace my white 64 GB 4S!

    Looking forward to thumbprint reader
  4. macrumors 65832


    Mar 7, 2012
    Bigger area huh? Quad core perhaps :D
  5. macrumors 68030


    Feb 12, 2010
    I'd love that.
  6. macrumors regular


    Jul 16, 2009
    Could also be a smaller board with same chip size.

  7. Bhatu, Jun 17, 2013
    Last edited: Jun 17, 2013

    macrumors regular


    Apr 1, 2013
    Samsung should get back to work now! :cool:
  8. macrumors 65816

    Feb 15, 2011
    Why do we need quad core? Those swift cores in A6 are a great balance in power and battery life I think.

    We'll see I guess
  9. macrumors regular

    Jan 8, 2013
  10. macrumors 68030

    Feb 17, 2009
    Need more GB, instead of quad core.
  11. macrumors regular

    Jul 12, 2012
    Who cares, it will be running iOS 7 which is garbage! #BoycottiOS7
  12. macrumors 65816

    Four oF NINE

    Sep 28, 2011
    Soviet Union
    Add 128 GB, delete 16 GB, maintain current price points.
  13. chrmjenkins, Jun 17, 2013
    Last edited: Jun 17, 2013

    macrumors 603


    Oct 29, 2007
    Lots of possibilities here. Assuming they're moving to 28nm, it definitely means they're adding stuff if it's getting bigger.

    • Rogue family GPU. Die size is unknown for this family so it may well be a reason for increase.
    • Quad core. Apple may have optimized iOS 7 and its APIs for a true quad core environment.
    • Shadow core. Apple could be implementing a Tegra-like solution with a simplified, slower core that powers up to take care of simple tasks like notifications. Only when the user is fully using the phone do the faster cores turn on.
    • big.LITTLE. This is kind of like the shadow core, except it's an actual ARM concept supported directly in their architecture and ISA. Since swift cores are custom, it would be a little different for apple, but it may still be possible for them to use two A7 cores (custom or not) to match their Swift cores for low power operation. It's also possible they've adapted a single A7 core into a shadow core. (*currently ARM's big.LITTLE concept requires the number of A7 cores to match the number of main cores, which is why there is an octa core Samsung Exynos part. Apple may or may not try to break from this restriction)
    • Custom circuitry. The redesigned A5 for the appleTV had a lot of custom analog circuitry. It's possible Apple could be going even more custom on the A7 design, which could cause a size increase. They could also be moving off component chips on chip to reduce the overall number of components on the board.

    All that being said, I think the premise of the article is wrong. I think the logic board has gotten narrower. Notice how the A6 has room for a triple row of caps to its left? The new logic board only has room for a single row (caps being placed longways, granted). Also, the back of the iPhone 5 logic board has the Hynix memory module spanning the whole board. Now since the board is thinner, it's been forced to rotate 90 degrees to fit since it's longer than it is wide.
  14. macrumors 65816

    Apr 22, 2008
    Weird, I'm sure Apple made improvements in virtually every single aspect of iOS 7 over iOS 6, and I'm also sure I logged into MacRumors, not twitter.

    Must be my computer playing up. Restarting now...
  15. macrumors 68030

    Feb 17, 2009
    You may want to apply for a job at Apple and show them how it's done!

    I am assuming you created something groundbreaking already, which makes you feel entitled to rip
    the work of other creative people?

    ios7 will be the fastest adapted OS ever for Apple, says this analyst.
  16. macrumors 6502a

    Dec 24, 2011
    For what? iMaps?
  17. macrumors G5


    Nov 14, 2011
    Haha amazing to see how many people now seem to care about form over function when usually they're complaining about Apple doing the same thing. For me quick access to common settings and better multitasking > design of app icons.
  18. macrumors 6502a

    May 24, 2013
    I know it's probably hard to tell the difference, but this is not twitter. If ios7 is complete garbage then why the hell do you own a product with ios6, which is worse in every aspect.
  19. macrumors 65832


    Mar 7, 2012
    A wise man once said "640K ought to be enough for anyone." :rolleyes:

    Never say never, quad core with the right multitasking & optimization to balance battery life can really be a wonderful experience.
  20. macrumors 6502a

    Jun 25, 2008
    Hello guy who vows to boycott facebook every time they make a change but after a few weeks you realize the change was all for the better.
  21. macrumors 6502a


    Oct 18, 2011
    Going white.
  22. macrumors 68030


    Feb 12, 2010
    It's actually just called Maps, and is not the only app available for the iPhone.
  23. macrumors 68030


    Oct 19, 2010
    Buffalo, NY
    You're exactly right!

    I haven't seen ANY innovation at Samsung in the past few weeks. This looks to be the beginning of the end for Samsung,
  24. macrumors 6502


    Jul 20, 2012
    I'm excited to see parts surface leading up to the 5S release. I've missed this! I'm still rocking my white 32GB 4S! Such a reliable device but I think it's time to upgrade to 5S.

    I hope they lower the price OR keep the same price points and get rid of 16GB models and introduce 128GB models so it's: 32GB/64GB/128GB.

    Really looking forward to changing my signature to "iPhone 5S (Black - 32GB) - 7.0"
  25. macrumors 65816

    Apr 22, 2008
    Agreed. Whilst the new icons aren't really my cup of tea, I'm sure that a) They will evolve from what we see now to the final master release and b) By that time they will probably have grown on me anyway.

    When I first saw the leaked iPhone 5 I thought 'Urgh', but by the time it came out I was used to it, and weirdly by that time the reverse effect was true - the 3.5" display of old looked somewhat 'squashed'.

    It's amazing how the mind works.

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