iMac G5 Problem

[Pipouc]

Hi! I can't start my Mac... I think this time it's a serious problem...

I'm trying to reboot but I just cant !

I Think i need to put this screen http://imgur.com/eKtka but i dont know how ...

Got this screen http://imgur.com/4aiFC but my keyboard doesnt respond ...

Im trying with "C" and Option key but nothing !!


OMG Now i tried again with the second screen i posted and got this: http://imgur.com/dzITM

Also getting this: http://img714.imageshack.us/i/foto0305q.jpg/

Can someone tell me WTF it's happening to my Mac ?

HELP

 

[Nameci]

You are encountering a kernel panic.

 

[Pipouc]

You are encountering a kernel panic.

WTF I'm supposed to do ! Please tell me :/

At least tell me how to put this screen http://imgur.com/eKtka

 

[Nameci]

Holding "option" key would take you to that screen.

 

[MacHamster68]

first things first are you still getting the chime

disconnect all peripherals that are in some way connected to your iMac just leave the keyboard an mouse if they are usb
as in the majority of times a kernel panic is caused by hardware failing and most times of that its the hdd gone bad , some sectors bad are enough if they had been vital sectors , it could also be ram gone bad , ok its a iMac g5 so even a bad cap problem cant be ruled out
http://http://www.thexlab.com/faqs/kernelpanics.html