IMac G3 Crash Problem.

[BlackSpade]

Hi, my slot loading 300Mhz IMac G3 MacOS X 10.4.11 has a problem.

It was working perfectly fine but today i runned a heavy program, it freezed first then the screen glitched anormally, i cutted the power then restarted, it didnt do anything. Then i restarted it again with command+opt+o+f, open firmware showed up. I typed reset-nvram than reset-all MacOS booted but when i typed my password it glithed again so i cut the power again did the same thing opened the open firmware but even open firmware is glitched its not readable. This is so bizarre, it sometimes boot the system sometimes not... I wil try to use external monitor and post the update...

 

[BlackSpade]

Hi, my slot loading 300Mhz IMac G3 MacOS X 10.4.11 has a problem.

It was working perfectly fine but today i runned a heavy program, it freezed first then the screen glitched anormally, i cutted the power then restarted, it didnt do anything. Then i restarted it again with command+opt+o+f, open firmware showed up. I typed reset-nvram than reset-all MacOS booted but when i typed my password it glithed again so i cut the power again did the same thing opened the open firmware but even open firmware is glitched its not readable. This is so bizarre, it sometimes boot the system sometimes not... I wil try to use external monitor and post the update...

Update on external monitor: I connected the VGA but the monitor i have, said invalid format

 

[Intell]

That looks to be a failing GPU, especially if it is like that in OpenFirmware. There is very little you can do for an iMac G3 with a failing GPU other than replace the logicboard.

 

[MysticCow]

Dead GPU. It's time to make a MacQuarium or iMac Cat Bed.

 

[Aydın Yavuz]

might it be a solder issue, can i fix it with heat?(i am the blackspade this is different account)

 

[Aydın Yavuz]

Dead GPU. It's time to make a MacQuarium or iMac Cat Bed.

nooo i am not able to buy another G3 I spent a lot of time fixing this. This Imac means a lot for me (i am the blackspade this is different account)

 

[Intell]

You wouldn't need a completely new iMac, only a replacement logicboard. I think all of the slot loading logicboards are compatible across the different speeds.

 

[BlackSpade]

You wouldn't need a completely new iMac, only a replacement logicboard. I think all of the slot loading logicboards are compatible across the different speeds.

Buying new logic board also very difficult for me. I live in Turkey...

 

[BlackSpade]

I will try heating it up with a hairdryer