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Not sure if it helps, but I recently had exactly the same issue with exactly the same symptoms. Was worried it might be the logic board, but took my MacPro to a friends house to swap PSUs and check (he has the same MP). Installed his PSU and issue went away. With my PSU he had the same problem.

Ordered replacement PSU on AliExpress for $130.

Greetings,
Link to your order please. Thanks
 
Not sure if it helps, but I recently had exactly the same issue with exactly the same symptoms. Was worried it might be the logic board, but took my MacPro to a friends house to swap PSUs and check (he has the same MP). Installed his PSU and issue went away. With my PSU he had the same problem.

Ordered replacement PSU on AliExpress for $130.

I can't tell what is going on from that video. Only a few sounds.

This is why it always helps to post your location in your profile. I would imagine most members on here would be more than willing to help with any problems in person.

If anyone is in my area (location listed in profile... everyone should do this) don't hesitate to call upon me for assistance in diagnostics if you are local to me... not that I am an expert by any means, but sometimes two heads are better than one. Not to mention, swapping parts with a known working cMP is always a good troubleshooting practice.
 
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I can't tell what is going on from that video. Only a few sounds.

This is why it always helps to post your location in your profile. I would imagine most members on here would be more than willing to help with any problems in person.

If anyone is in my area (location listed in profile... everyone should do this) don't hesitate to call upon me for assistance in diagnostics if you are local to me... not that I am an expert by any means, but sometimes two heads are better than one. Not to mention, swapping parts with a known working cMP is always a good troubleshooting practice.

Will do
I upadted my profile with my location
 
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So I just got news that my computer is dead that sound like to me they didn’t do their job is there anyone who has an actual logic board
for Mac pro somehow I want to get machine running. Is there anyone I can meet up with
 
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