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how to reset PRAM in the Mac Pro 7,1?

How do I reset the PRAM in a 7,1 Mac Pro?


If I start the PC, holding down option+command+p+r has no effect.

Mac Pro, macOS 10.15

Posted on Aug 17, 2020 9:55 AM

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Posted on Aug 17, 2020 11:31 AM


Well this computer does indeed have the T2 chip. The apple logo only appears once.


Are you saying that if I continue to hold the keys down after it completely boots the first time, the thing will reboot again?

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Aug 17, 2020 11:31 AM in response to Tom521


Well this computer does indeed have the T2 chip. The apple logo only appears once.


Are you saying that if I continue to hold the keys down after it completely boots the first time, the thing will reboot again?

Aug 17, 2020 11:28 AM in response to Grant Bennet-Alder

That's not working. I press the keys immediately after pressing the on button.


The computer boots the same if I hold the keys or not. The apple appears, the horizontal thermometer makes its way across beneath the apple and the the screen background with all the icons appears. Apps which were active before shutdown reappear and open.


Are you saying if I keep on holding the keys after all this happens, the NVRAM will be reset?

how to reset PRAM in the Mac Pro 7,1?

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