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Current version by Sterling Hirsh,

Title:

Video mucked up

Text:

My iMac G5 runs fine, but after booting, the screen either goes totally blank or displays multi-colored "hash". When I boot in safe mode, it works OK but you can still see some confetti in the background. I suspect that the video adaptor has some issues, but have no clue how to fix it, or whether it is even possible. I fear that the GeForce FX-5200 adaptor is some soldered-in chip that means replacing the motherboard, which basically means junking the computer.
Anyone know how to deal with this?
UPDATE:
At Aussimac's suggestion, I ran the AHT and sure enough, it reports a VRAM error. I plan also to open up the case and see if the caps are zapped, but in the meantime, the error it reported was as follows:
2NYD/1/4:2103
Is there a guidebook somewhere that documents what these thing mean, or does anyone here know what this one indicates?

Device:

iMac G5 20" Model A1076

Tags:

video, Black Screen

Status:

open

Edit by Kyle Wiens,

Title:

Video mucked up

Text:

My iMac G5 runs fine, but after booting, the screen either goes totally blank or displays multi-colored "hash". When I boot in safe mode, it works OK but you can still see some confetti in the background. I suspect that the video adaptor has some issues, but have no clue how to fix it, or whether it is even possible. I fear that the GeForce FX-5200 adaptor is some soldered-in chip that means replacing the motherboard, which basically means junking the computer.

Anyone know how to deal with this?

Device:

iMac G5 20" Model A1076

Tags:

g5 imac video geforcevideo, Black Screen
g5 imac video geforcevideo, Black Screen

Status:

open

Original post by jharlow,

Title:

Video mucked up

Text:

My iMac G5 runs fine, but after booting, the screen either goes totally blank or displays multi-colored "hash". When I boot in safe mode, it works OK but you can still see some confetti in the background. I suspect that the video adaptor has some issues, but have no clue how to fix it, or whether it is even possible. I fear that the GeForce FX-5200 adaptor is some soldered-in chip that means replacing the motherboard, which basically means junking the computer.

Anyone know how to deal with this?

Device:

iMac G5 20" Model A1076

Tags:

g5 imac video geforce

Status:

open