Help : iMac with Snow Leopard crash without second display connected

Discussion in 'iMac' started by skyrick, Sep 27, 2010.

  1. skyrick macrumors newbie

    Sep 27, 2010
    Hi all,

    I've a iMac 24" and I would like to resell it urgently.

    But I've a big problem, if I disconnect my second display (belinea 20"), the iMac screen become grey or blue after many second.

    If I boot system, after the grey clock : nothing, grey or black screen.

    The Os is snow leopard disc, update version (10.6)
    The iMac version is iMac8,1
    The EFI bios is : IM81.00c1.b00

    I tried :
    - Reinstall 10.6 with format (normal and zero write format system)

    - Utility disc on boot cd (scan disk & rights repair)

    - Try to boot cd without second screen
    > I've white screen (after a update to 10.6.4)

    - Try PRAM reset
    > no working

    - Try a 10.5.2 install (delivered with the iMac)
    > I've directly a grey screen just after boot with cd : no install menu appears

    You can see my post on apple forum here

    Help me please :'(
  2. pintsizemacman macrumors regular


    Sep 26, 2010
    i had an ibook that when u turned it on the screen would become grat and a icon woulf flash between finder and question mark. turns out i had a blown logic board.:( only thing u could try is to take it in to an apple store.:(

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