メインコンテンツにスキップ
ヘルプ

オリジナル投稿者: David Baker ,

タイトル:

Black screen at startup, chimes repeat every two seconds, nothing more

テキスト:

My iMac shows black screen at startup and repeatedly chimes (normal chime - not the diagnostic beeps) until I press the power key again to switch it off.

Have tried (with USB keyboard) resetting SMC, resetting PRAM/NVRAM, entering safe mode etc (as here https://www.howtogeek.com/189104/troubleshoot-your-mac-with-these-hidden-startup-options/). No success. Still same problem.

Any thoughts?

Thank you

David

デバイス:

iMac Intel 27" EMC 2390

ステータス:

open