Having a bit of an issue...

Discussion in 'iMac' started by frenzyheart, Mar 30, 2012.

  1. frenzyheart macrumors newbie

    Aug 30, 2010
    Alright, so... I've definitely been more of a lurker than a poster, but I wanted to run this situation by the smart people here, and see what you all think. Note: I am taking my iMac in today to be serviced, but if I can save that trip then maybe this post will be worth it! Bare with me... this is a bit lengthy...

    I'm currently running a 21.5' 2011 iMac. It's all up to date with Lion 10.6.whatever number they are on now, lol. Attached is my USB keyboard (Apple) and USB mouse (Logitech), as well as my external HD and my secondary monitor.

    Last night, I was playing a game and, out of nowhere, my external monitor and harddrive stopped working. I unplugged them both, and still had full function over my keyboard and mouse. Another 3-5 minutes pass by, and then my keyboard and mouse stop working, and have not worked since. Since this whole debacle started, though, my mouse has gone from being 100% unresponsive upon plugin to the sensor light on the bottom flashing quickly when plugged in, but then becoming unresponsive after. If I plug my external monitor in, I get nothing. If I plug my external HD in, the light on the HD lights up as if connected, but I have no way of telling if it truly is or not. All of these things work when connected to other computers. My husband's keyboard has lights that show up when they are connected to a computer, so I plugged his keyboard in, and the light came on, but the keyboard was unresponsive. His mouse was also 100% unresponsive when plugged into my computer.

    As for solutions, obviously, I've tried unplugging everything and restarting. I've tried SMC reset multiple times. I've tried PRAM reset, which obviously wouldn't work due to no keyboard, but it never hurts to try I suppose. I've noted the Screen Sharing app, and cursed myself for not having it enabled on my iMac. This cursing continued when I realized I have no sharing enabled on my iMac. Even more cursing came about when I realized I had disabled bluetooth connections, and therefore cannot connect my wireless keyboard, wireless magic mouse OR trackpad. (You can better believe I will have all these enabled when this issue is resolved, though!!)

    So, pretty much, it seems as if my USB and thunderbolt ports are either disabled or dead, but I can't check because ... no keyboard or mouse.

    Like I said, I'm taking it in, but hey... if you have any ideas that I haven't found by searching (and I think I've pretty much picked the internet clean with searching...) then please feel free to help me! (Luckily, too, I have Applecare...) Thank you in advance!
  2. fa8362 macrumors 65816

    Jul 7, 2008
  3. Spink10 Suspended


    Nov 3, 2011
    Strange issue - I think this will take hands on trouble shooting from the Apple Team :(

    Blessing is you have AppleCare.
  4. jvmxtra macrumors 65816


    Sep 21, 2010
    Do you have bluetooth setup? Perhaps try that(although this could be catch 22).

    Do you have screen share enabled? can you desktop into the iMac and see what's going on?

    This must be frustrating.. but since you already made the appt, go in and work w/ apple support team but still, this type of crap I hope it happens to nobody.
  5. frenzyheart thread starter macrumors newbie

    Aug 30, 2010
    Figured I'd post a reply to let those who posted know what happened...

    I carried my iMac into my service shop (thankfully, there's a authorized service place closer than my Apple Store!!!) and plunked it down, looked at the guy and say "SAVE ME!" He chuckled, asked what was going on, and started poking around. It was powering random things (powered his magic mouse just fine!), but the data was getting mixed up, hence why I couldn't actually use my keyboard or mouse.

    Diagnosis? I need a new logic board. I was sitting there thinking "That's all? Really?! Phew!" Parts and labor covered (thank you, almighty beings wherever you are, for Apple Care!!! lol) and I can pick up my shiny next Wednesday.
  6. mfram macrumors 65816

    Jan 23, 2010
    San Diego, CA USA
    That's code for: I don't really know what's wrong so we'll just replace all the inside guts. Of course, that's pretty much the only thing than can be done anyway.
  7. The-Pro macrumors 65816

    Dec 2, 2010
    haha so true
    had something similiar happen several times. "i have no idea whats causing the problem, but we'll just replace your logicboard"
    atleast they are honest.
  8. iMacC2D, Mar 30, 2012
    Last edited: Aug 12, 2017

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