Yes it has a small white light coming from it's center. If it is not working you can probably get it working by resetting the PRAM and/or the Motherboard reset button (can't remember what it's called exactly). k On Jun 26, 2005, at 3:22 AM, Peter Apockotos wrote: > Does the PowerMac G5 Power Button light up? I haven't been in > front of one for awhile. Does anyone know how much it costs and > what the part number is?