Ramp probs! prusa hephestos. (defect ramp?)

I got my Prusa i3 hephestos yesterday, but the motors won't run. nothing but the endstops display get power/enough power on the ramp, i tried to measure the stepsticks and set them to the correct voltage. im running Marlin to hephestos v1.4 and freaduino mega2560, i tried using pronterface, but nothing happens, i can see on the lcd display that i goes on each axis the amount i told them to in pronterface. someone have any clue what could be wrong?

Have you firmware loaded to your Mega? If you heat your extruder, does that motor work?

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Prusa i3, Ramps 1.4. Catnozzle 0.4mm
SketchUp - Enveloping Globoid Worm Gear - Part One - 3D Printed: [youtu.be]
DesignSpark Mechanical & more precise screw thread: [youtu.be]
Nicer Screw Thread In SketchUp ( Bolts,Nuts): [youtu.be]
How To Model A Heart Shape In SketchUp: [youtu.be]
How To Draw 3D Printable Snap Fit Ball Joint In SketchUp: [youtu.be]

Yes both the newest firmware, and the fail safe 1.3.1 tried extruding nothing happens, but i Found out that with only the power supply connected the LCD do not turn on, it is only on when USB is connected.

Did you see this : [forums.reprap.org]
Broken parts or something. Have you checked that there is current at the end of motor cable? Ramps to Arduino pins not aligned correctly?

Edited 1 time(s). Last edit at 05/01/2015 01:32PM by Plasteroid.

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Prusa i3, Ramps 1.4. Catnozzle 0.4mm
SketchUp - Enveloping Globoid Worm Gear - Part One - 3D Printed: [youtu.be]
DesignSpark Mechanical & more precise screw thread: [youtu.be]
Nicer Screw Thread In SketchUp ( Bolts,Nuts): [youtu.be]
How To Model A Heart Shape In SketchUp: [youtu.be]
How To Draw 3D Printable Snap Fit Ball Joint In SketchUp: [youtu.be]