my boyfriend has a pending felony charge and so his P.O. violated him. I don't know what what is to come next I know he has to go to the board but then what about that charge? I can not find the pending charge anywhere

The PO would file his complaint/finding to the presiding judge as a "Violation of Probation" and give the reasons for the violation. That is the charge. The judge will have to decide what to do next depending on their findings of facts related to the violation. He might have to sit in county jail for a few weeks or sent back to finish his original sentence.