Posts made by Hedis

Connect the negative lead of your voltage meter to gnd somewhere on the board/power supply and only move the positive lead to the desired test point when you make these measurements.

Just make sure that you have +3.3v on the reset line, then it should be in the correct state.

Does the computer react when you connect the USB now after the CPU swap?

Do you have clock signal now?
Are all the supply voltages present?
Is the reset line high?

You wrote "one or the other", so it doesn't move both Z motors at the same time?
The Z motors are connected to the ZA ZB connectors (Drive 2)?
What is your supply voltage to the board?