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現在のバージョン作成者: John Cathey ,

タイトル:

2-3 second grinding noise on startup

テキスト:

There’s a short (2-3 second) grinding noise at the beginning of startup, before anything appears on the screen. I’ve taken the cover off and the fan is rotating ok. Any idea what it might be? It works ok, just worrisome.
 
=== Update (03/14/2020) ===
I replaced the fan. It doesn’t work. I think I may have damaged one of the electrical ribbons, going to see if shop can fix. But also, still have the grinding noise. Video attached.
 
[video|2300]

デバイス:

Mac Pro Late 2013

ステータス:

open

オリジナル投稿者: John Cathey ,

タイトル:

2-3 second grinding noise on startup

テキスト:

There’s a short (2-3 second) grinding noise at the beginning of startup, before anything appears on the screen. I’ve taken the cover off and the fan is rotating ok. Any idea what it might be? It works ok, just worrisome.

デバイス:

Mac Pro Late 2013

ステータス:

open