Help requested with major crashes and start-up probs with a G5 & OS 10.4.7

Question

Not sure if this post should be on Tiger OS or hardware ...
I have had my G5 for 14 months. It runs with a 20" Apple CRT monitor
It has just developed quite serious problems. These have two elements
- Three days ago, while writing a mail message, vertical bars came down over the message and the 'need to restart' alert came up
- when attempting to restart I couldn't. The G5 start up sound was heard but the monitor button remained amber. When I did nothing the fans ran unti I forced it to close down
This persisted during several attempts to restart and while trying with the shift key held down
Later that day the machine started
I ran Disk utilities (checking disk and repairing permissions)
I ran Disk Warrior (no problems reported)
Both elements of this problem - the bars and restart message and the failure to fully restart - have occurred several times in the last three days. The problem may occur after 10 minutes or a couple of hours. It may then take many attempts to get the machine to start up. When it does, there is no pattern to explain why it has
Currently, everything apart from the monitor, key board and router are disconnected
Nonetheless, I expect to find myself 'behind bars' again soon
Any advice would be much appreciated

Answer 1

Hi norpsych;
It sounds like you are having kernel panics. Generally they are caused by hardware problems. I would suggest you disconnect everything and run the Apple Hardware Test from the install media that came with you system.
Allan