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Tekno11 Author

Level 1

4 points

2008 imac shutdown and not rested after led 3

Hello. My 2008 imac, connecting AC power turns and looking on the motherboard, turns on led 1 and led 2, but led 3 blinks once and after that all shuts down. Led 4 stay off. Screen is off.

During that, the “bong” sounds and interrupts itself at about the 70% of its normal duration.. (I think because No more power on the main board)

The only thing I can do to try a restart is to disconnect and reconnect 220v AC power cable.. this cause it is the only way to make he motherboard lights again almost the led one in standby mode..

taking out all the two RAM modules motherboard stays on and sounds (off course because the ram are missing..). Led 1 and 2 stays on..

Tried to remove also the hdd but nothin changes

Any suggestions?

Mant thanks in advance

Posted on Dec 29, 2020 6:02 AM

2008 imac shutdown and not rested after led 3

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