6 Replies Latest reply: Dec 5, 2012 3:29 AM by woodmeister50
huwphillips Level 1 Level 1

I have a Mac Mini server mid 2010 model, running Mountain Lion server.


It reported a fault with the HDD in the lower drive bay some months ago, so I changed the disk. It still reports a fault with a new disk and the original disk works perfectly in a portable enclosure, so it cannot be a disk problem but something more serious.


I have now discovered that bank 1 ram slot has failed. I have two 2GB ram modules, and whichever way I insert them bank 1 claims to have no ram.


Are these two problems related, and what is the fix. I'm just hoping there is something simple and that I don't need to replace the logic board.

Mac mini, OS X Server, Mountain Lion
  • BDAqua Level 10 Level 10

    It sure sounds like the logic board, not sure if any heating or resoldering of the RAM slot can be done on the Minis.

  • huwphillips Level 1 Level 1

    Something else that keeps happening is that my NAS, a Drobo FS, keeps getting unmounted. Could this be another sympton of a failing logic board?

  • BDAqua Level 10 Level 10

    It certainly could be, do you get any Console messages when it unmounts?


    Open Console in Utilities & see if there are any clues or repeating messages when this happens.

  • huwphillips Level 1 Level 1

    I thought it had cured itself as it hadn't disconnected for a while, but yesterday it did! I have had Console running for a few days, but which part of the logs should I be looking at?

  • BDAqua Level 10 Level 10

    At the Date & time of the problem, in the System log.

  • woodmeister50 Level 5 Level 5
    Servers Enterprise

    Run Apple Hardware Test to try and pin down where issue is.

    However, it does sound like it is a logic board issue.  These

    days, since pretty much all the ICs on the board are BGA

    (ball grid array), even the best electronics hobbyist can't

    replace them.


    I just did a quick Google of logic boards for 2010 Mini and

    they are pretty pricey ($500-$600 range).  If you have Applecare,

    however, you should be covered.


    At that price for logic boards, you may be better off looking for

    someone selling a 2010 Mini and just replace yours.