power book g4


macrumors newbie
Original poster
Nov 21, 2011
My powerbook G4 powers up but screen goes dim and it hangs what might be the problem?


macrumors 6502
Feb 2, 2003
Silicon Valley
Could be variety of things....

Sounds like it's a hardware issue I think...

First thought is that there might be a loose connection somewhere inside....do you travel around with your powerbook such that something might have been jostled loose?

It could also be some other hardware issue since I assume that powerbook is more than a few years old...

Do you have a local Apple store or Mac retailer that you show it to them? or a pc repair shop?

They should be able to give you a diagnosis and then you can decide if you want to get it fixed...


macrumors 68000
May 20, 2011
Wales, UK
Sounds like a nackard inverter cable to me, it's very common with iBooks & PowerBooks... It happened to my iBook a while ago, you can still see the screen, right? It's just very very dim? If so it's the inverter... Sorry man :(
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