Geeetech

I'm looking at my board.
I'm assuming the axis drivers are the black chips that are near the axis connectors?
Are the drivers soldered to the board or press fit?

I have a 2up3d printer. It was shipped with the Geetech PrintrBoard Ref D.
I'm using repetir Host, version 1.0.6 to Generate g-code.

My Z axis steeper motor, stopped working in the negative direction.
To test movement, i moved the Z-axis wire's, female connector, to the controller's, Y-axis male ...