Purple vertical line suddenly appeared...

Discussion in 'iMac' started by petvas, Nov 6, 2013.

  1. petvas macrumors 601

    petvas

    Joined:
    Jul 20, 2006
    Location:
    Mannheim, Germany
    #1
    I got my new iMac 27" late 2013 yesterday. I ordered it direct from Apple online store, so I was surprised to see that it came with Mountain Lion preinstalled.
    I upgraded to Mavericks and today I saw a vertical purple line, almost in the centre of the screen. The line appears even when the Mac starts, so I guess it can't have anything to do with Mavericks...
    Apple is sending me a replacement Mac and I guess it is a hardware issue, I just wanted to ask you people, if you have installed Mavericks on your late 2013 iMac 27" (with the 1GB NVIDIA card) and if you are experiencing any issues. I am thinking of trying to downgrade, just to see if the problem persists, but it doesn't really make any sense.
    NVRAM and SMC reset haven't helped either.
    The hardware test didn't find any problems.
     
  2. MacUser2525 macrumors 68000

    MacUser2525

    Joined:
    Mar 17, 2007
    Location:
    Canada
    #2
    Hardware tested or not that is the signs of a bad graphics card.
     
  3. petvas thread starter macrumors 601

    petvas

    Joined:
    Jul 20, 2006
    Location:
    Mannheim, Germany
    #3
    Looks like a hardware issue. I expanded my display to my TV using AppleTV and it works ok, so I guess it is a display defect.
     
  4. r0bt macrumors newbie

    Joined:
    Nov 2, 2013
    #4
    Yet another user with a hardware defect in their new 2013 iMac... this is a poor show from Apple

    I'm currently waiting for my replacement to arrive because of a faulty LCD panel in my new unit. Symptoms = intermittent pixelated stripe down the right side of the screen.

    At least we can still rely on quality customer service if not quality hardware, lets hope this doesn't change too!
     
  5. petvas thread starter macrumors 601

    petvas

    Joined:
    Jul 20, 2006
    Location:
    Mannheim, Germany
    #5
    I am buying Apple products since 2006 and this is the second time. I have a problem with a purchase. The first problem was with a MacBook Pro and it had a board defect.
    Even if I don't like it, these things can happen. Apple's support was great and they offered me a replacement immediately, even if my iMac was a BTO.
    I get to send my problematic iMac after I receive the replacement and Apple didn't even ask for a guarantee. Apple's support was great.
     
  6. MikeChicago macrumors member

    Joined:
    Sep 30, 2013
    #6
    Same here. Apple has been great. I've been using Macs since 2002 and only had one really bad Apple. The best part is that Apple replaced it, free of charge, two years later with an upgraded model because it needed another repair and they deemed it excessive. I had AppleCare by the way.

    They are helpful even if there isn't a problem they caused. On the most recent order, I forgot to select the Magic Trackpad and ended up placing an order with the mouse, which I didn't want. I called to have this undone and was told that there was no easy way to update the order and we would have to cancel and reorder. But since that is a pain in the butt and the machine was BTO they just offered to send me a free Trackpad. I didn't even ask for it. They just said, let's make this easy!
     
  7. r0bt macrumors newbie

    Joined:
    Nov 2, 2013
    #7
    I am totally realistic that, of course, defects do occur. However the sheer number of problematic units that seem to plague the 27" 2013 iMac release seem quite unreasonable. I understand that users only tend to post when something is wrong and so the number of posts reporting a complaint cannot be taken at face value given the number of users who have no need to post given their fully functioning machines. Despite this though, there does appear to have been a quality control issue.

    All that aside Apple have been great, Apple also agreed to send me a new unit prior to returning the old defective one to minimise disruption to my work. Not to sound ungrateful, but i have 2 thoughts on this though:
    a. Amazon offer this as a matter of course as part of their returns process and the user is not made to request an out of the ordinary service
    b. the need to replace just should not be there in the first place
     
  8. alksion macrumors 68000

    alksion

    Joined:
    Sep 10, 2010
    Location:
    Los Angeles County
    #8
    All of this is frightening me. I get mine next week.
     
  9. petvas thread starter macrumors 601

    petvas

    Joined:
    Jul 20, 2006
    Location:
    Mannheim, Germany
    #9
    These things can happen. Just don't think about it and enjoy your new Mac.
     
  10. ioannis2005gr macrumors 6502

    ioannis2005gr

    Joined:
    Aug 10, 2013
    Location:
    Europe
    #10
    I think you are very happy with your big one like this fellow:

    Also,

    personally, I'm only worrying about the poor quality control in China. Many 27'' iMacs were found to have defective LG monitor. Many customers in this site have complained and reported similar issues. I won't buy 27'' iMac because of those issues. I don't want to be another one "number" in their "statistics".....;):rolleyes:
     
  11. Tjosansa macrumors regular

    Tjosansa

    Joined:
    Jul 27, 2013
    #11
    Based on what?

    r0bt
    macrumors newbie

    Join Date: Nov 2013
     
  12. r0bt macrumors newbie

    Joined:
    Nov 2, 2013
    #12
    Tjosansa
    macrumors regular

    Join Date: Jul 2013

    Are you insinuating that my recent date for signing up for an account to post somehow devalues what i have to say? Aside from this being ridiculous logic - you are aware that one is able to read this forum without having an account? Additionally, you may have heard of the rest of the internet that can also be read in the absence of a Mac Rumors forum account. Nevertheless, perhaps you would like to read the following threads that offer only a sample of reported issues with the LG panel used in both the 2013 and 2012 models:

    http://forums.macrumors.com/showthread.php?t=1509571
    http://forums.macrumors.com/showthread.php?t=1651929
    http://forums.macrumors.com/showthread.php?t=1528453
    http://forums.macrumors.com/showthread.php?t=1560938
    http://forums.macrumors.com/showthread.php?t=1546801
     
  13. petvas thread starter macrumors 601

    petvas

    Joined:
    Jul 20, 2006
    Location:
    Mannheim, Germany
    #13
    Can we just concentrate on the main question?

    Are there here iMac late 2013 owners with the Nvidia 1GB graphic card that have Mavericks and experience no issues whatsoever?
     
  14. Choctaw macrumors 6502

    Choctaw

    Joined:
    Apr 8, 2008
    #14
    Fear is the only darkness, most of what we worry about never happens. Your new system will be OK……if not, it will be replaced. So enjoy your gamble, you have placed you bet (order) enjoy watching the wheels of Apple spin. The winning number comes up when you receive a work of art called iMac. It so much surpasses the PC's offerings of today …….just my view.
    Choctaw
     
  15. Choctaw macrumors 6502

    Choctaw

    Joined:
    Apr 8, 2008
    #15
     
  16. Arfdog macrumors 6502

    Joined:
    Jan 25, 2013
    #16
    Do you have the failure rate (failures per 1000 units) to prove Apple's quality is getting much worse?
     
  17. aznboi91 macrumors regular

    Joined:
    Jul 27, 2012
    #17
    I want to see a geographical distribution of where the problem is occurring most of the time. I think this is an assembly line problem .... Has anybody had their iMac from Fremont CA have this problem or is this more out of the state thing?

    Cheers.
     
  18. petvas thread starter macrumors 601

    petvas

    Joined:
    Jul 20, 2006
    Location:
    Mannheim, Germany
    #18
    I am from Germany, and my iMac has a display problem. I tried connecting my TV via AppleTV as a second monitor and there is no vertical line there. That means that the graphic card is not at fault, only the monitor..
    Still waiting for my replacement iMac. It should be here early next week and I hope it will be perfect.
     
  19. aznboi91 macrumors regular

    Joined:
    Jul 27, 2012
    #19
    Cool. Thanks for letting me know :) Do you know where you're Imac was assembled?

    You're iMac probably wasn't assembled in USA...


    http://9to5mac.com/2012/12/05/assembled-in-usa-imacs-are-originating-in-fremont-ca/
     
  20. petvas thread starter macrumors 601

    petvas

    Joined:
    Jul 20, 2006
    Location:
    Mannheim, Germany
    #20
  21. aznboi91 macrumors regular

    Joined:
    Jul 27, 2012
    #21
    I believe it's written on the underside of the pedestal... :)
     
  22. petvas thread starter macrumors 601

    petvas

    Joined:
    Jul 20, 2006
    Location:
    Mannheim, Germany
    #22
    Just so that you understand how bad this line is, I attached a screenshot with a black background...You can clearly see the problem...
     

    Attached Files:

  23. IA64 macrumors 6502

    Joined:
    Nov 8, 2013
    #23


    THis happened to my old late 2009 iMac. It happens, it's a corrupted video memory I guess.

    Have you tried resetting the SMC and PRAM ?

    Mine used to disappear if I let it cool for some time and reset it.

    Cheers.
     
  24. petvas thread starter macrumors 601

    petvas

    Joined:
    Jul 20, 2006
    Location:
    Mannheim, Germany
    #24
    Yes I have. I also left the computer for ten hours off, but it didn't help. I am not sure it's video memory. I think the monitor is defect.
     
  25. IA64 macrumors 6502

    Joined:
    Nov 8, 2013
    #25
    OK one easy way to make sure is to change the resolution.

    If the line doesn't move, it's a screen issue.
     

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