Model A1418 / Late 2012 / 2.7 & 2.9 GHz Core i5 or 3.1 GHz Core i7 Processor

Preguntas 154 Ver todo

iMac won't boot. HD and FAN are spinning for 1 sec

Hi, When I power on my iMac I hear the HD and Fan spinning for 1 second. Then it stops and does the same thing over and over. 1 LED is steady the second LED lights up when the fan and HD start spinning. See pictures. What could be the problem? If the power supply would be damaged there shouldn't be power, LED or spinning HD and fan right (even when it's just for a second right?)

Block Image

Block Image

Contesta esta pregunta Yo también tengo este problema

Es esta una buena pregunta?

Calificación 0
Agregar un comentario

¡Envío gratuito para todos los pedidos de más de USD100 o que contengan un Pro Tech Toolkit!

Visita Nuestra Tienda

1 Respuesta

Respuesta Más Útil

Here's a breakdown of what the diagnostic LED mean: Diagnostic LED's

From the sounds of it you have a logic board issue with the power regulator logic.

Do you have your system plugged into a surge suppressor or UPS? If not, you may want to get one, its even possible the suppressor is shot as over time it does lose its effectiveness.

Fue útil esta respuesta?

Calificación 1

Comentarios:

I've ordered a new power supply. Keep you posted.

por

Replacing the power supply didn't solve a thing...

por

I thought not, sadly this is a logic board issue as the regulators are there.

por

What exactly do i have to change on the logic board?

por

Agregar un comentario

Añadir tu respuesta

Mattis estará eternamente agradecido.
Ver Estadísticas:

Ultimas 24 Horas: 0

Últimos 7 Días: 0

Últimos 30 Días: 2

Todo El Tiempo: 142