Powermac G5 problems.

[J. Bernard Vallon]

I've got a powermac g5 tower, dual 2.5 june 04, at the studio. It won't turn on. I figured it was the power supply. I took it to the geniuses, they said i was probably right, switched it out, no love. Still wont turn on.

They said its probably the logic board, which means i'll probably try and fix it and sell it. But before I spend 800+ on a new logic board, i'm thinking:

When I press the power button, I get nothing. No click, no hum, i might as well be pressing a disconnected button. Is that really the logic board?

Anyone have any experience with dead G5s?

 

[fde101]

Is the switch bad?

 

[J. Bernard Vallon]

Wouldn't they see that at the genius bar? Maybe not. Seems unlikely, but I'll check anyways. Any suggustions welcome.

 

[Paul Hazlett]

Wouldn't they see that at the genius bar? Maybe not. Seems unlikely, but I'll check anyways. Any suggustions welcome.

We had the same problem with a G5. hit the switch and nothing. no click nothing. It was the motherboard.

 

[Jeff Kilgroe]

If you have already replaced the PSU, it is probably the logic board. Probably not worth putting money into it, seriously. Is this a PCI-Express model or a PCI-X?

If the $800 figure mentioned is a quote for the new logic board, fugettaboutit. If working, the system probably isn't worth that in terms of resale. You would probably do just as good or better to part it out if there is anything good in there like a Kona card.

 

[Zakaree Sandberg]

bad ram

 

[Douglas Underdahl]

I've got a similar problem, but the switch is lighted and clicks. But the machine won't boot, nothing. Any ideas?

 

[Jeff Kilgroe]

bad ram

Could be... But even with faulty RAM, it should power up, unless one of the modules is literally fried and causing something to short out.

A good idea would be to open the system, clean/blow it out, make sure all cables, RAM, cards, etc.. are properly seated.

 

[T. Glen Phelps]

For $800 you can by the one I have for sale.

http://www.reduser.net/forum/showthread.php?t=19944

 

[fde101]

If the more obvious things don't work, open the case and disconnect everything you can possibly turn the computer on without having -- obviously things like cooling fans need to stay in place -- and try it that way.

If it works, add components one at a time until it breaks, and you found your problem.

If it doesn't work, the problem is with whatever is left in the box...