2010 MacBook Pro shutdown during boot (OS is good)
It is the 2.66 GHz Core i7 model. I say it is not the OS because it crashes with two different OSX boot disks and during OSX recovery mode. Have tried the following:
- Sent it to a shop to have the bad capacitor on the logic board replaced. I previously had the capacitor overheat issue but the symptom was different: under GPU load the laptop _rebooted_. The current symptom is a complete power down: it never powers back up to show a panic screen.
- Booting with each of the RAM sticks one at a time
- NVRAM clear and SMC reset startups
- Single user mode (runs for 30s or so before shutting down)
- Verbose mode: shuts down during a different log message each time
- Safe mode: typically gets to login screen then shuts down shortly after
- Recovery mode: shuts down a few seconds into the recovery
- Replaced the hard drive with another OSX drive: same symptoms
- Replaced the hard drive with Windows bootable drive (boot menu then BSOD)
- Target disk mode: stays up as long as I want it to be up
- Searched for panic files while in target disk mode: found recent startup logs but no panic logs
- Ran Apple Hardware Test: quick test and long test passed
- Froze computer in freezer for one hour: shut down in same amount of time during boot
- Boot from High Sierra installer USB stick: shutdown during boot
What I have not tried:
- Repaste the heatsink (ordering paste today). I live in a dry climate which might aggravate heatsink paste drying out?
- Remove battery
One frustrating thing is that ifixit.com has a procedure for replacing the heatsink paste but does not describe the symptoms that would lead you to execute that difficult procedure. Obviously if you can run the laptop long enough to read temperature sensors you would know it was overheating. Does overheat shutdown occur _before_ the system would record a panic?
FWIW, this question is similar to: MacBook Pro turns on, shows Apple logo or desktop, and cuts out.
Ist dies eine gute Frage?
2 Kommentare
Granted, the OP didn't accept the answer from the other question. But @originalmachead did answer! And it was reasonable answer!
von Dan
Thanks. (I didn't scroll far enough the first time.) The upshot is a recommendation to repaste the chips under the heatsink.
von Glenn