MP 6,1 I think my Mac Pro died help.

[rueyloon]

My Mac Pro suddenly shut off and is now totally not responsive. I’ve tried the usual stuff like swapping RAM, resets etc but to no avail.

When I press the diag button some leds lit up, where can I refer to the codes?

Is there a way to easily transplant the SSD to my older 5.1?

I have the SSD adapter but I can’t make it boot because Catalina cannot run on my older 5.1.

Help...

 

[tsialex]

Just add -no_compat_check to the boot-args of your MP5,1, it will boot Catalina:

sudo nvram boot-args="-no_compat_check"

Needs SIP disable, pay attention with any typos entering the command.

A user here posted a version of the Apple Technician Guide for 2013 Mac Pro on a thread, a month or two ago.
[automerge]1591779085[/automerge]
This is the thread:

Mac Pro Cylinder led diagnostics

Hi I’m trying to find a manual on the diagnostics light inside the Mac Pro late 2013 a1481 (cylinder) currenlty I have only 4 less lighting up (out of 7) and Mac won’t start up No chime sound,usb backlit keyboard not getting Light. I’ve tested the voltage and it seems to get more then 10v on...

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