Technically too much yes, but unless running for prolonged periods it should be fine, plus the driver has a thermal cutoff, just stick a heat sink on top of the driver chip and you can get away with it. I doubt the motor is the issue.
Go get a tiny screwdriver and turn it on and try adjusting the potentiometer on the driver chip. I dont have a photo with me, but the long flat side of the potentiometer should be lined up parallel with the long side of the board. If that is a new chip, i believe you will turn it counter clockwise to this position.
We dont have to worry about that with the Chronos Lite and Lens apparatus motors as they are low power, however on the HD rail it uses a 2.1 amp motor and will generally behave exactly as expected until that potentiometer is corrected.
Another possibility, before you do that, make sure you have finished the calibration routine, loading the defaults should be fine. Depending on the motor, the motor speed may be too fast and it is just stalling which also makes that same noise. Move to CONT, and press SET to start the motor. Move the Adjust knob back and forth, the closer to 12 oclock on the adjust knob the slower it will move until it stops. if you can get NO movement from the CONT mode and it just vibrates, it is probably the potentiometer on the driver that needs some adjusting. if you DO get movement, look at the number on the display and find a comfortable speed, use that number (or something close to it) as the go-speed. Check the manual on the website to get a list of which speed adjuster is which
let me know how it goes, sounds like you are almost ready to rock n roll