Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

iMac not booting

  • 19-07-2011 9:34am
    #1
    faceman
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators, Social & Fun Moderators Posts: 16,663 CMod ✭✭✭✭


    I think my iMac has suffered with sudden death syndrome. Its an Intel dual core iMac. I left it in sleep mode last night and when i got up today it wouldn't wake. I unplugged the power, tried to reset the SMC but it wouldn't come back to life.

    Fortunately i back up everything.

    So any idea what issue I might be looking at and the cost? Anyone recommend a repair centre? Its outside of warranty.

    also is this an opportunity to upgrade the innards? I already have max RAM (4gb) but the HD is only 250gb. Anything else I could upgrade on the inside?

    Thanks peeps!


Comments

  • #2
    Greentree_uk
    Registered Users, Registered Users 2 Posts: 1,023 ✭✭✭Greentree_uk


    does the screen come on at all? if not then it's likely the psu.


  • #3
    mattfinucane
    Registered Users, Registered Users 2 Posts: 81 ✭✭mattfinucane


    If you haven't already done so, unplug all external devices like portable hard drives and see how you go. Same thing happened me at the weekend. I had an external hard drive plugged in but not plugged into the mains which was preventing it from booting up properly.

    Hope it works out.

    Note: There are two mac service centers in Dublin but Mactivate are by far the better crowd to deal with. Best of luck with it.


  • #4
    faceman
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators, Social & Fun Moderators Posts: 16,663 CMod ✭✭✭✭faceman


    Greentree_uk wrote: »
    does the screen come on at all? if not then it's likely the psu.

    No screen doesn't come on

    Ive tried unplugging all peripherals and resetting etc


  • #5
    faceman
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators, Social & Fun Moderators Posts: 16,663 CMod ✭✭✭✭faceman


    Got home tonight and had a look at the iMac again and i was able to power it on. Weird. :-/


  • #6
    faceman
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators, Social & Fun Moderators Posts: 16,663 CMod ✭✭✭✭faceman


    And 10 seconds after typing that it went dead!!! :confused: won't reboot


  • Advertisement
  • #7
    Greentree_uk
    Registered Users, Registered Users 2 Posts: 1,023 ✭✭✭Greentree_uk


    sounds like possibly a dodgy capacitor on the PSU.


  • #8
    faceman
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators, Social & Fun Moderators Posts: 16,663 CMod ✭✭✭✭faceman


    Greentree_uk wrote: »
    sounds like possibly a dodgy capacitor on the PSU.

    Yeah possibly

    So it seems that after a few mins if I perform a SMC reset then it will turn on for about 15 mins. I checked fan speeds and temps but everything is normal

    I performed a PRAM reset this morning and it stayed on for about 40 mins before I left for work. If it's still on when I get home maybe that's all it needed? Although I wouldn't have expected the issue to have anything to do with PRAM?

    I'll know when I get home anyway


  • #9
    faceman
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators, Social & Fun Moderators Posts: 16,663 CMod ✭✭✭✭faceman


    So I got home and the iMac was still up and running. I guess resetting PRAM did the trick!


  • #10
    muggyog
    Registered Users, Registered Users 2 Posts: 725 ✭✭✭muggyog


    You may not be ' out of the woods ' yet. This has the signs of a failing PRAM battery. Quote from this website.

    If these settings constantly get reset even when you have not manually reset the PRAM, the computer's logic board battery may need replacing.

    This was a regular problem with PPC Macs.


  • #11
    faceman
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators, Social & Fun Moderators Posts: 16,663 CMod ✭✭✭✭faceman


    muggyog wrote: »
    You may not be ' out of the woods ' yet. This has the signs of a failing PRAM battery. Quote from this website.
    This was a regular problem with PPC Macs.

    Its an Intel Mac. A techie guy informed me that seemingly when an iMac has been moved about its not uncommon for these things to happen and reset usually does the trick.


  • Advertisement
Advertisement