Power Mac G5 Freezes on startup screen.
please help me :). I'm a computer technician in my country. I got this old Apple PowerMac G5 2.5Ghz Dual Liquid Cooled. It has a problem - it doesn't boot up.
Problem - starting up the device, it does the original Apple chime and freezes on gray screen (sometimes only gray, sometimes "No signal", sometimes apple logo) and doesn't boot further. USB keyboard and mouse - not working.
What i did already -
1. Replaced ALL Ram for new and tested ones... no luck.
2. Replaced HDD with a fully working one.
3. PRAM and the other one...SD..or something like that :) - reset both.
4. Changed the battery...
still no luck.... :( ... without a keyboard or boot, i can't even launch ASD tests...
Something mystical is happening :) ... Please help!!
Is this a good question?