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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.
-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?
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.
