Saltar al contenido principal

Is it the power supply? Lit LED, 1 none else.

LED stays lit when I plug my iMac G5 in, but when I push the power button, LED 2 flickers on for less than a second and then goes off again. The iMac stays black.

I have tried to reset the SMU by plugging it in while holding the power button, but nothing has changed.

The computer became bricked after a brief power outage (and was the only machine in the house not on a power strip).

mayer wrote responding to "Where is a decoder for diagnostic LED pattern"

LED 1 indicates that trickle voltage from the power supply has been detected. This LED will be ON when the computer is turned off and your power supply is working correctly.

LED 2 indicates that the main logic board has detected proper power

Contestado! Ver respuesta Yo también tengo este problema

Es esta una buena pregunta?

Puntuación -1
Agregar un comentario

2 Respuestas

Solución Elegida

Replace your power supply.

Fue útil esta respuesta?

Puntuación 5

3 comentarios:

Thanks. I'll order one and see how it goes!

- de

Well it was the power supply - I'm using the computer to write this follow up. It didn't take hours to fix either - it took half an hour.

I discovered that you may not need to do more than get the front bezel off and lift up the display to swap out the power unit - the hidden connector that otherwise takes hours of disassembly to get at pulls out with a bit of firm-but-gentle sideways wiggling.

My step 18 note "If you are changing the power supply - this is a good point to remove the screws to the old power supply to see if the connectors (both of them) are accessible. If you can gently (but firmly) pull the two-wire connector out from under the chassis, you can install the new unit at this step ...

Live on iMac G5, live on!

- de

Glad I could help you solve your problem ;-)

- de

Agregar un comentario

I have the same problem only 1 led light up.I have an imac 27 "intel. might be power supply?

Fue útil esta respuesta?

Puntuación 0
Agregar un comentario

Añadir tu respuesta

philaro estará eternamente agradecido.
Ver Estadísticas:

Ultimas 24 horas: 0

Ultimos 7 días: 0

Ultimos 30 días: 1

Todo El Tiempo: 767