Macbook A1466 820-00165 U4500 Heating Up

Instafixx

Member
Machine had come in for SMC Issue. PPBUS was 8.17V.

Reballed the SMC and it started working. Came in again after 1 week. It has intermittent shut down issue. As if the machine gets hot and it goes off - fan goes high.

Thermal scanning shows U4500 getting got .
How to do go about it
 

Instafixx

Member
Chip removed. Machine turns on and works. But shuts down randomly.
I plug it on charge. I get chime. it turns on and then shuts down. This will happen many times and then it will turn on randomly.
 

Instafixx

Member
It is very random. Sometimes for 15-20 mins.
Sometimes in 1-2 minutes. But its mostly 1-2 minutess. Very rarely it stays up till 15-20 mins.
 

2informaticos

Administrator
Staff member
In SMC bypass shuts down fast too?
If possible, check the sensors with HWMonitor.

Just in case, try to run diagnostic mode.
 

Instafixx

Member
Tried. It shut down during diagnostics. U2800 heating up - but very slightly. Have removed that too. Will check it for a day and let you know.
 
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