227      iPhone_iPad_Mac_apple

Shut Down Unexpectedly

Recently my 2012 MacBook Pro 13" has been periodically shutting down on its own unexpectedly. While I do use the MacBook Pro as a standalone machine, I often use it with an external monitor, two external drives connected (one USB 3.0 and one Firewire 800), and a daisy chained firewire audio interface that has it's own power supply connected. While I am not able to confirm a correlation, it seems that power management is playing a part in these involuntary shut downs, as the often occur after I reconnect the machine to the various peripherals after having used it untethered. The problem has only recently developed after a year or two of similar usage configurations without incident.

Does anyone have any insight into what might be happening here? Also, are there general guidelines/limits for using peripherals and external monitors with a MacBook Pro?

Thanks, Dan

Hi,

Try resetting the SMC: https://support.apple.com/en-us/HT201295.

Using the peripherals should not cause this issue.

I'm wondering about heat. Do the fans ramp up to high when you attach the peripherals?

Use a temperature monitoring app and fan monitoring app to see what temps really are, and if your fans are running to cool things down like they're supposed to:

Fan monitoring app:

smcFanControl (use this only if you can control the urge to control the fan speed; Mac OS X/macOS is designed to do this properly without outside interference): google for smcfancontrol or others.

Fan and Temperature monitoring app:

https://fannywidget.com

or google for more

Temperature monitoring apps:

check a whole list of them: https://www.tomsguide.com/forum/all.html?refine=temperature+monitoring+free+app

or google for more

https://www.bresink.com/osx/HardwareMonitor.html ($9.50)

or google for more

最后更新：2017-09-13 23:33:03

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