Mac Pro (2019) status indicator light behaviour

Learn about the different status indicator light patterns that you may see on your Mac Pro.

Mac Pro (2019) and Mac Pro (Rack, 2019) machines have a status indicator light on the top or front of the computer, next to the power button. There is also a second status indicator light on the back of Mac Pro near the power port.


Turned off

When a Mac Pro is turned off, the status indicator light is not illuminated.


Turned on or in sleep mode

After a Mac Pro has been turned on or is in sleep mode, the status indicator light is solid white and remains on until the computer is turned off.


Memory error

If there has been a memory detection or data error, the status indicator light turns solid amber for 0.2 seconds, repeating every second. Verify your memory and install or replace memory if necessary.


Housing unlocked or top cover removed while computer is on

If the computer is on and you unlock the housing, or open the top cover or access door on rack-mounted models, the status indicator light turns solid amber for 0.3 seconds, repeating until the housing is locked or the top cover or access door has been reinstalled.


Power button pressed while housing has been unlocked or top cover has been removed

If the housing has been unlocked or the top cover has been removed on rack-mounted models, and the power button is pressed, the status indicator light turns solid amber for half a second. Make sure that the housing is fully seated and locked, or the top cover has been installed and the latches have been locked, then try starting up your Mac Pro again.


PCIe card error

If a Mac Pro encounters an error with a PCIe card, the status indicator light flashes amber twice, repeating until the computer is turned off. If you have recently installed a PCIe card, learn how to resolve PCIe card errors on your Mac Pro.


Firmware recovery mode

If a Mac Pro is in firmware recovery mode, the status indicator light rapidly flashes amber three times, briefly flashes amber three times, then rapidly flashes amber three times. This sequence is repeated until the computer is turned off. You may need to revive the firmware on your Mac Pro. If you still need help, contact an Apple Authorised Service Provider.


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