15 inch "Desk Lamp" iMac G4 700MHz M6498 PowerMac 4,2

21 Questions View all

Yellow vertical video lines

My daisy has a yellow vertical line pattern, and freezes. Also shows the same on a second monitor. Is there a separate video board? Is a complete motherboard, if required, available?

Jim

dryfire@bellsouth.net

Answer this question I have this problem too

Is this a good question?

Score 0
Add a comment
Father's Day Gift Guide
Let’s honor more than our dads—let’s celebrate all the mentors who taught us how to fix.
Father's Day Gift Guide
Let’s honor those who taught us how to fix.

1 Answer

Most Helpful Answer

The fact that it does this with an external monitor indicates a failed GPU (Graphics Processing Unit). Sorry to say but it's integrated into the logic board. The 700 MHz is Apple part # 661-2589. You can also use the 800 MHz board in your machine, part # 661-2575.

Was this answer helpful?

Score 1
Add a comment

Add your answer

Jim will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 571