Oh, sad too see that 
Did the voltage go way up in that situation? Presumably yes.
Did the voltage go way up in that situation? Presumably yes.
yes input voltage spiked between 350v to 480v at the psu luckily i was able to salvage some of the boards and put together 1 and 2/3rd's of miners out of the 4 that got hit
i run 3phase 480 that i split single phases into 277v power , so the system has to stay balanced on all 3 phases
ouch.. im hurting just looking at it. what power supply are you using? doesn't it have any over voltage protection?
i run a mix of 2880's dell 750's dl580's and a few others like dps 800gba and dps1200's
one of the 2880's actually arced across the input terminals , and the other was fine go figure