Prusa i3 not Moving

I just finished my Prusa i3 (box frame) with RAMPS 1.4 running Marlin at 115200 baud. I'm trying running it without the extruder; I've connected all its cables (except the heater cable), but haven't mounted it on the x-block yet.

When I try manually moving things with Repetier-Host, nothing happens. Not even any sound from the motors. I have told it what serial port to use, and the correct baud rate. At the top of the "Manual Control" tab, it says [x] command waiting. When I look at the serial monitor that comes with the Arduino IDE, though, it comes up with this:

start
echo: External Reset
Marlin1.0.0
echo: Last Updated: Aug  9 2014 20:58:46 | Author: (none, default config)
Compiled: Aug  9 2014
echo: Free Memory: 5248  PlannerBufferBytes: 1232
echo:Hardcoded Default Settings Loaded
echoteps per unit:
echo:  M92 X160.00 Y160.00 Z1000.00 E836.00
echo:Maximum feedrates (mm/s):
echo:  M203 X500.00 Y500.00 Z5.00 E25.00
echo:Maximum Acceleration (mm/s2):
echo:  M201 X9000 Y9000 Z100 E10000
echo:Acceleration: S=acceleration, T=retract acceleration
echo:  M204 S3000.00 T3000.00
echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s),  Z=maximum Z jerk (mm/s),  E=maximum E jerk (mm/s)
echo:  M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
echo:Home offset (mm):
echo:  M206 X0.00 Y0.00 Z0.00
echoID settings:
echo:   M301 P22.20 I1.08 D114.00

(I dunno what's up with the smileys; I didn't put them there.) So I know the USB cable works and I know that COM10 and baud 115200 are correct.

I have no idea what's wrong, or why nothing seems to be working.

Any help would be appreciated.
Thanks

You have applied 12v power to the ramps? In particular the 5amp cct, as that’s where the steppers get their power from.

Have you tried homing each axis? You will have limited movement until you home. Notably, you won't be able to move towards the home positions.

Also, check your end stop status. M119 is the command I believe.

Dust: Yes, both the 5amp and the 11 amp have 12 volts (11.55V, to be exact).

Jbernardis: I have tried homing each axis; nothing happens. When I try to send M119 (by typing "M119" and pressing send) in the arduino serial monitor, I get no response.

Update: I tried printing a small object with Cura; Nothing moved, but the extruder heated up.

Heyhey, another update. I was looking through Repetier's settings, and the protocol was set to "Repetier" instead of "autodetect". I changed it to autodetect, and manual movement now works.

Thanks for your help.