Your not giving much information.
What new board did you get , A stepper drive or BOB ?
What is happening ? are the motors holding ? Did you swap x and y drives ?
Manufacturer of CNC routers and Viper Servo Drives
www.LarkenCNC.com and www.Viperservo.com
The breakout board is the one on the pdf file and yes I swapped the driver board and they worked what dont works is the x axis on the breakout board or maybe the pins are bad all the pins I used where on the pdf file.