Things to check in new MBA

Discussion in 'MacBook Air' started by iLoveiTunes, Aug 15, 2011.

  1. iLoveiTunes, Aug 15, 2011
    Last edited: Aug 19, 2011

    iLoveiTunes macrumors regular

    Joined:
    Feb 26, 2011
    #1
    Hi,

    I looked through the forum and 'm trying to consolidate the points one should check after getting the MBA.

    Important
    - Check screen for any dead pixels.
    - Check usual functioning of the machine. keyboard, trackpad, display, casing.
    - buzzing Sound with certain videos or songs on high volume?
    - Creaking sound from the base
    - hinge sloppiness
    -backlight bleeding (reporting on some 13" models)
    - Popping sound from speakers (this is a defect it seems and requires replacement)

    - Check the stability of the case. See if the laptop really stands on four feet as it should or is the case warped.
    - Check the case if there are scratches or dents fresh from the factory.
    - Check backlight bleeding, slight is to be expected, but severe shouldn't be tolerated.
    - See if there is a gradient effect at the bottom of the display.
    (thanks superego and rchip)

    Thanks calvol
    - make sure peripheral ports are working (USB, SD, etc)
    - check all keys for stuck, non-functional keys
    - check Bluetooth and WiFi connections
    - turn PC 360 deg to check for loose solder, extraneous material in unit

    Not so important :D (depending upon ones preference)
    - Check display kind
    - Check SSD type
    - Check battery health

    Can you guys help add more ? Please be kind with your replies.

    Thank you
     
  2. ZBoater macrumors G3

    ZBoater

    Joined:
    Jul 2, 2007
    Location:
    Sunny Florida
    #2
    This is not MBA specific. Those would be for ANY laptop you buy.
     
  3. iLoveiTunes thread starter macrumors regular

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    Feb 26, 2011
    #3
    I agree Sir. But since this is my first Air I thought of checking with the senior folks in here.
     
  4. lcseds macrumors 6502a

    Joined:
    Jun 20, 2006
    Location:
    NC, USA
    #4

    STOP THERE and enjoy your new MBA.
     
  5. Yumunum macrumors 65816

    Yumunum

    Joined:
    Apr 24, 2011
    Location:
    U.S.
    #5
    Some people have had some keys light up weaker than others. You'll wanna check that too. It'd be noticeable and annoying in dark rooms (especially if you have OCD!)

    And it's smart of you to make this list, that way you can check it all, see if your product is all good in the hood, then be happy as a clam, or get a new one so you can be happy as a clam.

    Some of these problems are specific to the Air though, so I disagree with the poster saying this is for "all" MacBooks
     
  6. GekkePrutser macrumors 6502a

    GekkePrutser

    Joined:
    Aug 18, 2005
    Location:
    Ireland
    #6
    I think the hinge sloppyness might also be something to check. I'm not sure about the 2011 models but the 2010's had some variance there.
     
  7. superego macrumors member

    Joined:
    Jun 24, 2009
    #7
    - Check the stability of the case. See if the laptop really stands on four feet as it should or is the case warped.
    - Check the case if there are scratches or dents fresh from the factory.
    - Check backlight bleeding, slight is to be expected, but severe shouldn't be tolerated.
    - See if there is a gradient effect at the bottom of the display.
     
  8. Pipper99 macrumors 68000

    Pipper99

    Joined:
    Aug 14, 2010
    Location:
    Fort Worth, TX
    #8
    You also might want to use Disk Utility to "Verify Disk" and see that it's in good shape.

    Also, it might be good to run the Apple Hardware Test to see if it reports any errors. When you start the MBA, hold down the "D" key (I think) until the Apple Hardware Test appears. You can run a short test or a test that takes considerably longer. I ran this test on my 2010 MBA, and it reported errors. The Genius couldn't isolate what caused the error message, so I returned it and got one that reported no errors.

    Download Coconut Battery (it's free) to give you info on your battery's health. Don't be alarmed when it says that your battery/machine is 27 weeks or so old: everybody's seems to show that age, but your battery should show that it's on it's first load cycle unless you've charged it already (in that case, it'll show that it's on the second, third, or so load cycle). Apple says that you don't need to calibrate the MBA's battery, but that's been up for some debate around here.

    Have fun! I'm smitten with my new MBA. :)
     
  9. rchip macrumors regular

    Joined:
    Jul 26, 2011
    #9
    Regarding the screen issue and speaker issue, i seem to be something of an expert on the issue (Hah i'm joking) but I've gone through 5 mba's and now I've decided I'm happy to accept this machine but it does have the speaker issue on certain sounds. From what I've experienced, two of the machines I had had the speaker issue really badly and it was present at moderate volumes and on quite a lot of sounds/music. One I think had no issues with the speakers but had quite a big screen gradient. Two of them one, including the one I have now have the speaker issue only on high volumes on very few sounds. This one doesn't have much of a gradient at all on the screen. From my experience (I've seen 14 2011 mba screens now (my own and display models) the gradient was there on them all but some worse than others. The speaker issue seems to vary as well!
     
  10. macneubie macrumors regular

    Joined:
    Aug 8, 2011
    #10
    maybe running a sine sweeptone from 20Hz to 20kHz will reveal which spot frequencies cause distortion/buzzing/resonance :D
     
  11. iLoveiTunes thread starter macrumors regular

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    Feb 26, 2011
    #11
    thanks ppl for your inputs.... I updated the original list :)
     
  12. Nioxic macrumors regular

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    Aug 13, 2011
    Location:
    Denmark
    #12
    ive checked all of these things throughout the last 5 hours of being a macbook air owner. Nothing is wrong with this one :)

    well theres a tiny small scratch on the bottom side of the macsafe chargers head.. "omg" :p

    i got 0 dead pixels
    a good screen with no gradient at the bottom like many people have said?
    and well.. really. its just perfect.
    even has the samsung ssd :D (256gb, don't know if that COULD be delivered as toshiba?)
     
  13. superego macrumors member

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    Jun 24, 2009
    #13
    Congrats, you got yourself a keeper.

    Indeed the vast majority of the 256 gb ssd's are Samsung, but there are Toshiba drives out there, too. They are quite rare, though.
     
  14. macfly4 macrumors member

    macfly4

    Joined:
    Apr 15, 2011
    #14
    yeah...and of course i got one of them :(
    oh well, guess i probably will never notice. after spending a few hours transferring all my stuff from my iMac i said to heck with going to the store to try MBA roulette.
    in what way could one imagine this drive difference would really show up in everyday use?
    Plus i figured that at least in these new MBAs you can swap the drive out yourself so if in a year or two from now it is too small for what i need i can buy a NEW, bigger samsung drive ....
     
  15. mittens79 macrumors newbie

    Joined:
    Jul 4, 2007
    Location:
    Durham, NC
    #15
    I thought that MBAs can't be customized after the fact...something about soldering?
     
  16. iLoveiTunes thread starter macrumors regular

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    Feb 26, 2011
    #16
    that's RAM .... I think SSD can be replaced...won't be easy though :p
     
  17. macfly4 macrumors member

    macfly4

    Joined:
    Apr 15, 2011
    #17
    why wouldn't it be easy? OWC sells replacement drives and have a video on how to replace it yourself. seems pretty simple. its not soldered to the board.
     
  18. iLoveiTunes thread starter macrumors regular

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    Feb 26, 2011
    #18
    Ahh..ok. If you say so. I normally am wary of doing such things on my own...
    I guess it's cheaper doing things on your own as long as you have the required knowledge..
     
  19. vkuber macrumors regular

    vkuber

    Joined:
    Feb 8, 2010
    Location:
    SF
    #19
    So I found one dead pixel right dot in the middle of the screen. I am within the 14 day policy of return. I know its personal preference on how some users can be OCD but would you go swap it out if you were within the 14 day period?
     
  20. superego macrumors member

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    Jun 24, 2009
    #20
    Of course you should swap it. Dead pixels in a brand new laptop is totally unacceptable.
     
  21. calvol macrumors 6502a

    Joined:
    Feb 3, 2011
    #21
    - make sure peripheral ports are working (USB, SD, etc)
    - check all keys for stuck, non-functional keys
    - check Bluetooth and WiFi connections
    - turn PC 360 deg to check for loose solder, extraneous material in unit
     
  22. mortenandersen macrumors 6502

    Joined:
    Apr 9, 2011
    Location:
    Norway
    #22
    Some newbie details...

    Hi, iLoveiTunes, and thanks so much for this very useful list!


    The info I am asking for may have been presented elsewhere on this forum, but I would be very nice to have them collected in this good and important thread.

    I am afraid I disclose my lack of knowledge by asking these questions, but I will have to live with that.

    1. What is the best way (very concrete and practically asked) to find out if there are some dead pixels?

    2. How can one in an easy way find out what manufacturer that has made the SSD?

    3. How can one in an easy way find out what manufacturer that has made the screen?

    In advance: Thanks a lot - I think many buyers will appreciate info about these topics.
     
  23. KPOM macrumors G5

    Joined:
    Oct 23, 2010
    #23
    Yes. Once you notice a dead pixel, you won't stop noticing it. Don't bother with the software "fixes" or the pricking tricks. None of them work. After the 14 days, Apple will usually only fix or replace it if 3 or more pixels are stuck or dead.

    ----------

    It isn't going to make a noticeable difference in anything but benchmarks, unless you make a frequent habit of copy GBs of data to your SSD.

    I had a Toshiba SSD in my 2010 MacBook Air, and it was incredibly fast as far as I was concerned. FWIW, the OWC aftermarket drives are faster than either the Toshiba or Samsung drives. Macworld ran some tests on them on 2010 MacBook Airs earlier this year and came to the conclusion that the difference was barely noticeable, if at all, in everyday usage.
     
  24. L0s7man macrumors 6502

    Joined:
    Feb 26, 2009
    #24
    Dead or stuck? Sometimes you can fix it. A while back I bought and MBP and there was a screen defect -- it looked like a centralized force was applied just to the left of the screen. You could just discren a slightly darker circle around what I presumed to be a dead pixel inside it.

    But I didn't wanted to go through getting a new MBP (I waited 4 weeks for that one!), so I thought I'd fix it. I downloaded a small program that was displaying random noise and left it running for a long long time. Not sure how long it took, but few days later the whole defect disappeared.

    If you have time left before you have to return your machine, why not trying to fix it?
     
  25. Nioxic macrumors regular

    Joined:
    Aug 13, 2011
    Location:
    Denmark
    #25

    1: what i've usually done is: open up a fullscreen completely white picture and see if you can find a black dot. If theres none: you got 0 dead pixels :)
    i got a 27" 2560x1440 (not mac) monitor.. it had 1 dead pixel at the bottom right corner. so unoticable.. so, look carefully! :) (that pixel on my big monitor is not black though... could also be some weird scratch on the inside of the glass panel or something)

    2: what i've done is: click on apple logo in top left corner -> about this mac -> more information -> then click on the storage tab in the top, and then at the bottom theres a disktool button -> up pops a window where you can see the hdd on the left side. Mine says: "251 GB apple SSD SM256C Media" (The SM stands for Samsung as far as my research showed me)


    3 found in the ""2011 Mba owners, share your ssd model and display model here"-thread:
    Display Identification

    -open terminal
    -paste 'ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///" | xxd -p -r | strings -6' (without quotes)
    -the first line is your display model

    example: 13" ultimate - LTH133BT01A01

    Mine started with LP, which as far as i could work out was for "LG Phillips" :)
     

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