No Chime, Black Screen, No Nothing! Argh!

Hey gang;
I recently bought a Power Mac G5, early 2004 edition, from a third party. It worked fabulous. I then did a complete disk erase-reboot, and upgraded to Leopard 10.5.8. I then installed CS4 (illustrator, photoshop, inDesign), and Final Cut Pro 6.0.4. It worked flawlessly for about 2 weeks when all of a sudden, when I turned it on yesterday, nothing happened. Black screen.

I noticed that my start up Chime didn't ring as usual and my screen always stayed black. Also, after about a minute after turning it on, my inner fans stated rotating really fast; faster than normal, and it sounds extremely loud as they turn. After this, nothing happens, the fans just keeping turning and turning at fast speeds.



Any thoughts? Suggestions?

Sincerely;

Uriel Reyes

it sounds like a hardware problem!!!
i would get it checked out by a professional!!

The fans of doom! Sad to say it's most likely the logic board.