Here it goes…i bought s19 90th machine via amazon and had it shipped here…for my first try it was working quite fine but when i wanted to use it the day after….it started to initialize and when it got to pulling in about 2.54 AMPs from the pdu (@220v)…a little electric boom happened at the pdu and there was a spark too (@the pdu (mind u only one miner is plugged at that pdu) and one of the power cables stopped working (i measured with a multimeter and one power cable shows 220v and the other 0volt ) all the outlets of the pdu works fine i tried a s9 1800 watt psu on the pdu and it works completely fine)….and now i am scared to turn the miner on could this be a control board issue( i have a spare control board but not a PSU) so should i change the control board and turn it on or should i wait until i get a new PSU WHAT DO U GUYS THINK PLEASE LET ME KNOW!!!