1 Reply Latest reply: Dec 25, 2012 6:12 AM by Rambling Joe
ankelu Level 1 (0 points)

i ve got very strange effects on every icon on the display.

like grey error


i did a screenshot... but i do not know if i can upload it on this page...


i have no idea what i can do...


its an old imac 20 inch.

G5 with 2 GHz Power PC G5



with Mac OS X, version 10.4.11


you can see the effect in my uploaded photo... in my profil...


if you have any idea...


that would be great





iMac G5 (20-inch Ambient Light Sensor), Mac OS X (10.4.1)
  • Rambling Joe Level 2 (280 points)

    It appears to be either a bad graphics card, or bad capacitors on the motherboard.


    If you have a non-iSight G5 iMac, you can take the back off your iMac and inspect the capacitors visually.  There are 28-30 capacitors standing up off the board like tiny little cylinders.  Look for dark spots, bulges, or leaks.  If they okay, it's probably the graphics card.


    I had a similar situation, and mine was a bad graphics card.


    Capacitors can be replaced by an experienced electronics repair person for about $250-$350.  The capacitors themselves are cheap, it's the labor.


    The graphics card could probably be replaced, but it would be a used replacement part and probably similar costs.


    Better to use the money on upgrading to a new computer.


    Good luck.