Why does this machine periodically shut off?

"oldturkey03

@oldturkey03


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Have you tried running the machine without it's topcase RDKL? I would try that just to make sure it's not a faulty topcase. I also would rule out the DC In if it happens while on battery as well. Could also be a component failure if you can audibly hear a short. What OS is it running? Is there a bootcamp partition on this machine? Have u tried a fresh install of OS?

Shutdowns like this are usually related to heat. The machine should be taken apart, fans cleaned, and thermal gel checked and re-applied to the processor.