G5 white screen with external interrupt

Hello,

I have done some searching on Google and in some other forums regarding my G5 that won't boot. When I turn the G5 on it just scrolls a white screen real fast that reads External Interrupt at srr0:ff845bbc. I am not able to eject the Leopard CD and have tried by holding down the mouse key and by booting and holding the Option Key.

I hear the normal Mac sound when it boots up but then it goes to the scrolling message. The fan also is on. I called Mac support and they tried walking me through getting into Leopard and getting the cd out but were not able to succeed at either and suggested I bring it in to my local store.

Does anyone have any ideas, is this a bad board?

Thanks,

Peter

If possible, hook your G5 up firewire to firewire to another Mac and boot up in Target disk mode. See the following Apple KB article: Link If that's successful, you should be able to eject the Leopard CD and run some tests on the G5 from the good machine.

Regards.

i'm having the exact problem

This seems to be the only thread on the internet discussing this problem.
I searched apple help with no luck.

i tried the advice of rebooting as a target drive, the target drive does not work, however holding down the T does reveal this text

external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030

then lists information about the build and a message that says "welcome to open firmware"

there is also instructions to "continue booting, type mac-boot an press return"

The text is held in place until I release the "T" key then the problem described by the OP happens as normal.

external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030
external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030
external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030
external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030
external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030
external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030
external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030
external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030
external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030
external interrupt at %SRR0: 00000000.ff845b6c %ssr1: 10000000.0200b030

This is a g5 iMac.
It runs great.
Or at least it did
Its this fixable?

same problem

I have the same problem did you find a solution?