RyanFel wrote:
The display started showing short vertical lines and is now so distorted that you have to guess where to click. I ran the diagnostics tool and everything passed except the video.
There was an error message "2ATI /1/4 113-xxxxx-113" so I suspect that the ATI Radeon X600 Pro graphics processor with 128MB of DDR SDRAM is failing.
The video chip is on the logic board which costs a lot to replace. Any suggestions?
PS: I hooked an external monitor and confirmed that it is not the LCD.
Welcome to Discussions, RyanFel
You seem to have successfully found the cause of your problem.
If you do not want to have an Apple-Authorized Service Provider correct your problem,
consider trading Macs.
Apple does not recommend or publish articles for user-repair of iMac G5 (iSight) model.
If you intend to do it yourself, you can search for on-line help. One such help source is here:
http://jimwarholic.com/
EZ Jim
Mac Pro Quad Core (Early 2009) 2.93Ghz w/Mac OS X (10.6.4) MacBook Pro (13 inch, Mid 2009) 2.26GHz (10.6.4)
LED Cinema Display G4 PowerBook 1.67GHz (10.4.11) iBookSE 366MHz (10.3.9) External iSight