Arduino not getting Connected

Hello,
Excuse Me if someone has already put up a thread about this.
I am using Arduino MEGA 2560 + RAMPS 1.4
While trying to test my Endstops, i dont know how, but suddenly by z axis stepper driver blew off on my RAMPS 1.4
Now, while i try to connect the Arduino board ( without Ramps 1.4 on top of it ) to my laptop, the laptop does not detect the Arduino.
I have even tried to check in the Device Manager. It does not show the Arduino there.
Also, Arduino is getting heated up, as soon as i connect it to my laptop.
But, The little LED glows when connected.
Further, when i try to run an example from the Arduino software, the software cannot upload it. It say, COM1 not found.

Is my Arduino working or dead ?
Is there a way, i can find out.
Someone please help me.

Sounds like you shorted the +5V pin to the ground, and killed the Arduino's regulator. There is a +, - and S pin on each endstop connector. If you use switches and connect them the wrong way around so that + and - are connected, you will fry your Arduino's regulator, so it won't work.

Hey Cefiar. Thanks for your help.
I have connected the end stops right to S and -
I dont know how,But I my Stepper Driver on the Ramps 1.4 blew off
Will that possibly cause any damage to the Arduino Board ?

Is there a way i can check it physically, as i am not able to connect it to the computer.

The computer doesn’t actually talk to the Arduino 2560, it actually talks to the tiny Atmega 16U2 (presuming you have a R3 board)
The Atmega 16U2 does all the fancy USB to serial conversion.

Since the board is not recognized by the computer, this chip is not talking.

I would have though power also, but you say the LED is glowing... so Im afraid it sounds rather dead.

I would check it really has 5v on a 5v pin, just as a final check

Hey Dust

Your doubt kind of seems right.
It is the ATmega, which is heating up.

5V on a 5V pin, On the RAMPS ?
I am connecting the Arduino only through a USB Cable, without the ramps pinned onto it.