[angelmb]

Suddenly my Blue & White G3 doesn´t start, there is no noise at all, once the G3 is opened, you can check how the fan tries to move but no more, I took a little video where you can check the moboard lights while you press the front start buttom.

Is it dead?

http://idisk.mac.com/super_mario/Public/yosemite.mp4

[kloda]

See if the PRAM battery on the motherboard is dead or not. You may also have to reset the motherboard. Couldn't find an article but I believe MacAddict covered this a couple months ago.

The article mentioned below shows the Power Mac G4 "Quicksilver" but the concept is the same:

http://docs.info.apple.com/article.html?artnum=42713

Battery part numbers:

http://docs.info.apple.com/article.html?artnum=86181

We've been having to replace the system/PRAM battery on the Blue and White G3s still in operatiion in the office. I replaced the one in my computer in January.

Hope this helps.

[angelmb]

Thanks, I had tried it, but no luck actually.

[angelmb]

OK, after read this Apple K info the issue seems to be the power supply unit.