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Orijinal gönderinin sahibi: Emiel Ketellapper

Başlık:

Diagnistcs LED #1 only blinking

Metin:

Recently my iMac stopped booting. The only audible cue is a very faint clicking when using the power button. Upon opening it appeared diagnostic LED#1 is constantly blinking when supplied with power. My first repair-attempt was replacing the PSU board. Unfortunately after replacing it the situation hasn't changed. Anyone have any clues what to look for?

Cihaz:

iMac Intel 27" Retina 5k Display

Durum:

open