Saltar al contenido principal

Apple logo appears, loading and then FREEZE!

Hi guys!

Today I will describe a problem with my 14" iBook A1055

Some days ago my friend gave me an old iBook from his basement.

In fact, machine wasn't working for about 5 years.

No one didn't know the condition, because they lost an Apple power supply.

As a fan of Apple brand - I took it with me.

I have a tunable power supply, so I put 24V and with the help of modified 2.5 mm jack an old iBook turns on. I was really happy.

I heard an apple chime, apple logo appeared and download indicator started to spin, but suddenly stuck. I realised that I don't hear the fan noise. I tried to start it several time more, but everything became worse and worse. On the third try - I didn't see any apple logo, on the fifth - I saw an RGB mosaic and turn it off.

I decided, that problem appears because of overheating.

I disassembled an iBook to monitor the temperatures.

Now I see that:

-Fan doesn't spin at all. Fan, as itself, is working correctly - I tested it. I turned on iBook about 50 times and fan rotates at the start only 3 times after manipulation with PMU or battery or something else, which I can't explain.

-Battery is completely dead. No charge, no green indicators - nothing.

-HDD is working properly, maybe there is some BAD-sectors, but I can say that the whole problem is not dependent on it. Because then I pull out the HDD cable from the MoBo and started the laptop - folder with question mark started to blink and after a few seconds freezed - didn't blink anymore.

Now I will describe the things, which I tried to do with iBook.

-I put a 120mm fan on the radiator and started the laptop - nothing changed.

It is still freeze. I'm not sure, but think that 120 mm fan running on full speed is a better cooling versus 30 mm fan...

-I booted it by holding cmd+s - all info downloaded properly and I could use keyboard to type commands, but the end was the same - FREEZE.

Block Image

-I did an OS 9.2.2 compact drive - put it in the SuperDrive and started by holding C - Apple logo appeared, download indicator started to spin and FREEZE.

I really don't know to do... Maybe I need to change the thermal pads, or at least flip them over...

What do you think, guys?

Contesta esta pregunta Yo también tengo este problema

Es esta una buena pregunta?

Puntuación 0
Agregar un comentario

1 Respuesta

I have a few iBooks that do weird things too, in the end, I just use them for spare parts.

Try running TechTools on it?

Sorry, with a Mac that old, it could be anything.

Fue útil esta respuesta?

Puntuación 0

1 comentario:

Maybe you have any hypothesis about this case?

I really don't know what is a TechTools..

- de

Agregar un comentario

Añadir tu respuesta

Albert Miller estará eternamente agradecido.
Ver Estadísticas:

Ultimas 24 horas: 0

Ultimos 7 días: 1

Ultimos 30 días: 11

Todo El Tiempo: 195