Sounds good...
Plug your HBP directly into the power supply and turn on.
Does that work? if so it could be the driving fet on your reprap controller has a issue.
If it still shuts down... I supect power supply specs are not the truth
Plug your HBP directly into the power supply and turn on.
Does that work? if so it could be the driving fet on your reprap controller has a issue.
If it still shuts down... I supect power supply specs are not the truth