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Hi everyone, I recently changed thermal paste on my MacBook. It ran for like 10 minutes, then it turned off. I don’t know if I mess something up. After that the system not able to turn on anymore and fan rev. I then unplugged the battery and tried to turn it on with charger. The system did not turn on but beep three times so I used heat gun to heat the RAM up. Then the system will only post, and fan rev. After give it up for three days, it suddenly turn on like nothing ever happen. I stressed test my macbook and it passed everything. The only thing that I suspect is battery because my system would occasionally turn itself off. Could battery caused it? Or what can caused this to happen? Update Added pictures of CoconutBattery and the current temperature of the system.
Thank you Update: After replacing the heat sink For anyone interested. After changing a new heat sink and applied new thermal paste, the MacBook runs cooler and the temperature on the right and left heatsink proximity changes in response with CPU temperature. Although it never went past 55 degrees Celsius but it temperature went down as CPU cooled down. This is in direct contrast with the old heat sink where it stays at 45 degree approximate all the time.
The heat sink its self has lost its coolant! Note the CPU is 90 and above, yet the Air Flow proximity & Left/Right Heat Sink Proximity temps are in the 40’s to 50’s so much cooler! Thats a sign the heat is not getting to the fins and the fans are both flat out! Time to replace it! The reason your system shuts down is SMC will do that when the its clear there is a risk the system will be damaged from heat.
