Upgraded internal RAM in iMac G4 - Now no video?

Discussion in 'PowerPC Macs' started by MathiasVH, Jan 20, 2012.

  1. MathiasVH macrumors regular

    Joined:
    Nov 7, 2009
    #1
    Hi there

    So I just finished upgrading the internal RAM on my new and already dear iMac G4 (I was really careful!), but to my horror the screen didn't turn on when I started it afterwards. The startup sound is there, and the fan spins up, but nothing happens on the screen. I've tried to insert the old RAM again, but that didn't help.

    I'm almost sure that I've somehow messed up the logic board. But if it isn't that: Then what could it be? And how could it be solved?

    If nothing can be done I guess I will be modding this.. But it really is a shame.

    Best regards

    Mathias
     
  2. MAC MAN JW macrumors 6502

    MAC MAN JW

    Joined:
    Jul 12, 2011
    Location:
    Buffalo,Ny
    #2
    Try what is in the Link's let us know if it works :)
    http://support.apple.com/kb/ht1712

    http://support.apple.com/kb/HT1379
     
  3. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #3
    Double check that you reattached the video cable to the logicboard. Be careful, the connector is very fragile. Also, don't forget to reapply the thermal grease when closing it.
     

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