G4 Quicksilver 733 will not start after power outage

[jamerican]

My sister went to work yesterday and left her Quicksilver 733 G4 on. Apparently there was a power outage in the area during the day. She came home and found the Mac off and has not been able to boot it since then. When she presses the power button, it lights up but the Mac will not boot. Is this a PMU problem? I remember sometime ago that happened to me but I forget how I fixed it. Any help would be appreciated.

[underdog]

The odds are it is a PMU problem. Reset the PMU and try it.

[jamerican]

Originally Posted by underdog

The odds are it is a PMU problem. Reset the PMU and try it.

It certainly was. Everything fine and dandy now. Thanks.

[tumbleguts]

um... I hate to sound like an idiot...

But I don't know what a "PMU" is?
Seeing as I have a G4 I wouldn't mind knowing what to do if a similar "act of god" should happen to me.

[Veljo]

Like tumbleguts...just for the sake of learning something, what is a PMU and how do you reset it?

[jamerican]

Originally Posted by Veljo

Like tumbleguts...just for the sake of learning something, what is a PMU and how do you reset it?

It is the Power Management Unit and is located on the motherboard (?) next to the battery. To reset it, you unplug the computer from the power source, open the side and you will find it just next to the battery. Press it once, and only once, and this will reset the power. There is a page on it on the Apple site. Do a search and you will find it along with a diagram. Hope this helps.

[Natobasso]

The first step, though, is to reset the PRAM in this case, right? Getting at the PMU requires opening up your laptop or computer--not the easiest as a first solution for most people.

(Command + option + P + R)

[jamerican]

I have done this twice with 2 different Quicksilvers and have not done a reset of the PRAM - just a straight reset of the PMU. Worked successfully in both instances.