[G4] Graphite G4 Tower Won't turn on

[SE]

Have been through this. It is a power supply problem. On one occasion 
the power supply was going out and on another occasion one of the wires 
connected to the power plugs had a cut in it so that bare wires were 
showing.

SE

Richard Klein wrote:

> MusikalOne at aol.com wrote:
>
>> I just acquired a Graphite G4 Tower, and it will not power up.  I 
>> noticed when the case is open, and the cable is plugged in, that 
>> every second or so, the fan makes a little noise as if to start, and 
>> moves ever so slightly.  This behaviour repeats every second . I 
>> cannot find the switch that disables powering up the computer when 
>> the case is open, but I did find a small whie cable with a small 
>> 90degree fitting on it just dangling.  Not sure if this is part of 
>> the problem and not having another G4 to look at, I have no idea 
>> where this wire is supposed to go. Any suggestions?
>> JC
>
>
> I think that small white cable you're talking about is the antenna for 
> an optional airport wireless card.
>