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MP 1,1-5,1 Mac Pro Mid 2012 Wont Start up and Shuts Down


macrumors newbie
Original poster
Hi Guys,
Newbie here so apologies if i am posting something that has already been asked before as i could not find a specific thread about the issue i am having.

I purchased a second hand 5.1 mac mid 2012 mac pro with no operating installed on the SSD. I connected everything up inc the network cable, booted to the white by holding cnd/r and it started to install high sierra. 45% in the machine randomly shut down.

Upon trying to turn it back on, the attached video is what happens.

Can anyone help with any suggestions please?

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