Dead Power Mac G4

[MacGeek7]

My uncle and aunt have a Power Mac G4 with 512 MB of RAM and 30GB HD from 2000-ish. A while ago it bite the dust and stopped working as in it doesn't turn on -at all. I removed the RAM and put it back in to see if that was the problem but that didn't work. Any ideas?

Thanks in advance!

 

[gmanterry]

Dead G4

My G4 did that a couple of years ago. This is what fixed it:
http://docs.info.apple.com/article.html?artnum=95037
Resetting the PMU on the Logic Board. Hope this helps.

Terry

 

[CanadaRAM]

Also it may be time to install a new PRAM battery.

1/2AA 3.6 V Lithium cell Should be about $12

 

[Eidorian]

If it is a dead PRAM battery the power light usually flashes when pressed but you get no response.

Replace it just like CanadaRAM said.

 

[MacGeek7]

Also it may be time to install a new PRAM battery.

1/2AA 3.6 V Lithium cell Should be about $12

Is this something Wal-Mart would have or should I go to a Best Buy?

 

[Eidorian]

Is this something Wal-Mart would have or should I go to a Best Buy?

Radio Shack

 

[MacGeek7]

I replaced the battery like suggested and it didn't help - any other ideas?

 

[notjustjay]

Is there a way to test the power supply to verify it's putting out the proper voltage?

 

[WOZhipper]

If you press the power botton on th efront of the G4 and the light comes on but it goes off as soon as you stop pressing it and the ir no boot sound. Your processor card is not screwed securelly to the motherboard, tighten the screws on the processor card *CPU disconected and properly grounded so you dont kill the MLB with static and your G4 will be good again.

 

[MacGeek7]

There is no sound or light at all - the fans don't spin or anything...it just sits there, making no noise at all.

 

[notjustjay]

Does the power supply have its own fan? If that's not running, then there's your problem.