New to Mac (mini) what's a Kernel Panic?

Discussion in 'Mac mini' started by j.benj, Jun 24, 2012.

  1. j.benj macrumors member

    Joined:
    Jun 13, 2012
    #1
    Hi all,

    I've recently picked up my first Mac (a mini) to do iOS development on. The only change I've made to the machine is bumping the RAM up to 8gb. Last night I experienced something I later found out was called a "kernel panic". I was browsing Lifehacker using Safari when it happened. My mini started back up fine and it hasn't happened since.

    Is this something I should worry about?
     
  2. noteple macrumors 65816

    Joined:
    Aug 30, 2011
    #2
    A panic is like a blue screen on a PC.

    If everything was fine until you bumped up the memory I would make sure the memory is seated correctly in its socket.
     
  3. j.benj thread starter macrumors member

    Joined:
    Jun 13, 2012
    #3
    Honestly I never even booted it up with the original 2gb in it. I upgraded the memory immediately after removing the mini from it's box. I'll have a look at the modules to make sure, though.
     
  4. thekev macrumors 604

    thekev

    Joined:
    Aug 5, 2010
    #4
    By look at them, do you mean test them? Memtest is probably the easiest thing to do as long as they're firmly seated. What ram did you order? Was it identical in spec to what Apple uses? Crucial is fairly popular on here.
     
  5. philipma1957 macrumors 603

    philipma1957

    Joined:
    Apr 13, 2010
    Location:
    Howell, New Jersey
    #5
    put the original ram back in see if it works. if it does download memtest run a ram test. on the oem ram.
     
  6. mentaluproar macrumors 68000

    mentaluproar

    Joined:
    May 25, 2010
    Location:
    Ohio, USA
    #6
    What happened to apple hardware test? Is that still a thing?
     
  7. j.benj thread starter macrumors member

    Joined:
    Jun 13, 2012
    #7
    it was a PNY kit (2x4gb) that had a "Mac compatible" emblem on the package. the specs matched the requirements in the Mac mini manual.

    They appear to be seated properly and I will run a Memtest when I get a chance.
     
  8. philipma1957 macrumors 603

    philipma1957

    Joined:
    Apr 13, 2010
    Location:
    Howell, New Jersey
    #8
    pny ram should work. i have used them many times,but i did have 1 bad set from them. do you have a 2010 mini or a 2011?
     
  9. wabbit42 macrumors regular

    Joined:
    Jun 25, 2012
    #9
    I have had two Kernel Panics, both earlier this year, on my late '09 mini. I am pretty sure on mine it is something to do with the bluetooth, because the keyboard stopped working and then I get the grey screen. So now whenever the keyboard stops working I just restart my mini, just in case! :cool:
     
  10. j.benj thread starter macrumors member

    Joined:
    Jun 13, 2012
    #10
    It's a 2011 mini :)

    I did a memtest and I did come up with some failures near the end of the test. I tried reseating the RAM modules and still had failures. Looks like I have a bum kit. I will take the PNY kit back to Best Buy for an exchange and see if a new kit passes the test.

    Thanks for the advice, will post back probably tomorrow with results.
     
  11. j.benj thread starter macrumors member

    Joined:
    Jun 13, 2012
    #11
    Actually I got a chance to duck out at lunch and exchange the RAM. Installed the new kit and ran a memtest, no errors this time. Another thing I noticed was that with the old kit if I looked at "About this Mac" it would show "Memory 8 GB". With the new kit installed, it shows "Memory 8 GB 1333 MHz DDR3".

    Guess the old kit really was defective. :roll eyes:

    Thanks again for the advice, all. Like I've said before this is my first Mac and I'm just getting my feet wet. Lots of great help so far from you guys and Apple tech support (iTunes app issue).
     
  12. trs0722 macrumors member

    Joined:
    Oct 29, 2011
    Location:
    Newark, DE
    #12
    Just another similar story: Bought my 2011 Mini shortly after it was released last July. I soon upgraded the memory to 8gb (Crucial). In late November, it started crashing and displaying the black box in several languages. The local Apple store eventually (took 2 trips) determined these kernel panics were probably due to bad memory. Bad thing is no determination could be made as to which one it was, or both, or how it happened. Apparently, some just go bad without warning. Had to send bad ones back to Crucial before they'd send me a replacement. No problems since. :)
     
  13. dolphin842 macrumors 65816

    Joined:
    Jul 14, 2004
    #13
    Glad you got it sorted out quickly. I had kernel panic issues with my 2010 mini for several months before I tested the RAM (which of course turned out to be bad...):eek:
     

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