Currently Being ModeratedFeb 18, 2013 11:00 AM (in response to Klaus1)
Thanks for responding. Everything else plugged in to the power strip works, including a lamp and a printer.
I've found Apple's HT1712 doc in the knowledge base that gives instructions for resetting the Power Management Unit, which it says may need to be done after a power surge. So, I'll try the reset and see what happens.
Currently Being ModeratedFeb 18, 2013 2:41 PM (in response to SL esq.)
Could also be the PRAM battery (1/2 AA size) ?
A dead battery can do all sorts of strange things to a Mac, not booting being one.
If you have a good level of DIY with computers you can change it yourself, BUT be warned it can be a little interesting on that model.
Currently Being ModeratedFeb 20, 2013 11:32 AM (in response to SL esq.)
Open up iMac G4
iMac G4 uses thermal paste. Be sure to get some thermal paste & replace / add more paste if contact is broken.
Currently Being ModeratedFeb 20, 2013 2:33 PM (in response to rccharles)
Thanks for the info.
Where does the thermal paste go? In this guide (http://www.ifixit.com/Guide/Installing+iMac+G4+15-Inch+700+MHz+EMC+1873+PRAM+Bat tery/7030/1) it's not mentioned.
Currently Being ModeratedFeb 21, 2013 10:55 AM (in response to SL esq.)
I have not worked with these machines.
Thermal paste looks like white/grey goggie putty. Just avoid disturbing the paste. I THINK this is more of a warning... don't mess with the paste.
"There are now two silver heatsink bars instead of one, creating two spots that need to have the thermal paste replaced. The second spot is at the end of the memory card (at the top of the memory card as shown in the sec. 2.1 photo). The second silver heatsink bar is parallel to the first one, and is also under the silver "strap" that runs diagonally across the heatsink bar."
Here is a picture of the battery (probably) that you need. Verify from the pictures on the web page.
Currently Being ModeratedFeb 21, 2013 12:37 PM (in response to custom mini)
Thanks for the site.
With the info that you & RCCharles have supplied, I think we're ready to have a go at repair—as soon as we procure a battery. I'll post what happens.