Ax1500i cannot successfully output power to pandaminer off 120v, 220v+ required?
OEM PSU plus transformer works at 215 mh/s
?
something is wrong
this psu should do it
https://www.newegg.com/Product/Product.aspx?Item=N82E16817139079&cm_re=corsair_ax1500i-_-17-139-079-_-Product
get that transformer out of the way do not use it is low quality.
if you plug the psu into the wall and boot the panda what happens?
my panda ran fine on this psu plugged into 120 or 240.
https://www.newegg.com/Product/Product.aspx?Item=N82E16817182384&cm_re=rosewill_tokamak-_-17-182-384-_-Product
your psu is better.
so something is broken
how old is your home/apartment?
is the plug you use close to the circuit breaker?
can you turn the breaker off to figure what else is on the line?