A1425 2012 820-3462, very slow and freeze

VinceLx

Member
Hello,

Another board which looks fine, no visible water damage, but it is very very slow, and finally switches off by itself.

It takes 2 to 3 minutes to boot, then after entering the password another 2 minutes delay, with the beach ball appearing from time to time.

I put this board in a different case which is fine with another board (keyboard and trackpad ok, SSD and its cable ok), with the same result.

No anomalies on the temperature sensors, all below 50 C in HWMonitor.

The original screen was partly damaged, a white vertical flickering strip of 4-5 cm, but I doubt it has an impact? No issue on the screen in the other case.

Where to start here?
 
Last edited:

2informaticos

Administrator
Staff member
Did you try PRAM reset?
Sometime helps doing it 2-3 times.

Did you test w/o battery and w/ known good battery?
Also try USB macOS.
 

VinceLx

Member
I repeated the PRAM reset several times, did not change the slowness.

With SSD on USB with MacOS: exactly the same, 3 minutes to boot. Then 1 min 30 s to reach the desktop after entering password.

I do all this without battery (the original battery is dead and I don't have spares)

It works normally on the other board, same model, without battery.
 
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