my new macbook pro 16 inch: when I strike the casing when the power is connected I feel vibration as long my hand touches the laptop and is moved... what is this?
new macbook pro 16"
done nothing else then connected to the grid when I encountered the problem above.
[Re-Titled by Moderator]
MacBook Pro 13″, macOS 12.7
I suspect what you're feeling as 'vibration' is really an electrical current. The power adapters that come with Macs (in the US, at least) are not grounded plugs so if your electrical outlet is not properly grounded then you may have current running through the case of the Mac (aluminum is a good conductor). Try plugging your Mac into another outlet, ideally in another location (a local cafe, etc.) and see if that resolves the problem. If so, short of having an electrician correct your wiring you can consider using the Apple Power Extension Cable that provides a grounded plug for the adapter.
I suspect what you're feeling as 'vibration' is really an electrical current. The power adapters that come with Macs (in the US, at least) are not grounded plugs so if your electrical outlet is not properly grounded then you may have current running through the case of the Mac (aluminum is a good conductor). Try plugging your Mac into another outlet, ideally in another location (a local cafe, etc.) and see if that resolves the problem. If so, short of having an electrician correct your wiring you can consider using the Apple Power Extension Cable that provides a grounded plug for the adapter.
91-29-30 wrote:
I reused the cord of my old laptop and it worked. It has as required the earthconnector . Job done : vibrations are gone …. Thank you all!
Good computing 91-29-30 !
yes I forgot to mention the cords are universal in this manner if you have an old one from a previous Mac.
Thanks for all the help.
after your suggestion I reused the cord of my old laptop and it worked. It has as required the earthconnector . Job done : vibrations are gone …. Thank you all!
91-29-30 wrote:
my new macbook pro 16 inch: when I strike the casing when the power is connected I feel vibration as long my hand touches the laptop and is moved... what is this?
new macbook pro 16"
done nothing else then connected to the grid when I encountered the problem above.
[Re-Titled by Moderator]
try a different main connection— opposite corner of the house / coffee shop / Library(?) and compare your results.
Apple use to include the grounded 3 prong plug with every Mac shipped... those days are gone.
international kit: Apple World Travel Adapter Kit - Apple Support
if it is a safety concern—
Call Customer Support (800) MY–APPLE (800–692–7753)
or on line https://getsupport.apple.com/
or call AppleCare Support at 1-800-APLCARE (800-275-2273)
Outside the USA—Contact Apple for support and service by phone
See a list of Apple phone numbers around the world.
Contact Apple Support - Apple Support
I've never experienced any sort of "vibration" of any Mac that wasn't caused by some internal mechanism such as a HDD or optical drive. Your MBP has neither of these so I cannot say what is causing the sensation that you feel. Maybe a cooling fan is what you feel?
Are you experiencing some operational deficiency with the computer?
If so, and if you bought the Mac directly from Apple, then you have a 14 day window within which you may return the computer for exchange or refund without question. Otherwise the return window is whatever the seller has in place.
illustration of grounded cord setup:
What causes vibration in a MacBook Pro when powered on?
