Ramps Board burned out

Hello guys

need a help about ramps 1.4 board

so recently i purchased the ramps 1.4 kit and when i attached it to arduino and the LCD is connected (no other driver or heater or motor are connected) and i have supplied a power supply of 12v 5amps and suddenly the ramps board started beeping and it shuts down
the arduino under the ramps board was also heated up i also checked for any short circuit or any other problem but was not able to find the issue don't know what was happening.

Some ribbon cables supplied with RepRap-Discount-LCDs are crimped the wrong way. ( It's an almost regular fault ). You'd have to turn around the connectors by removing the housing or cutting off the notch on the connector.
Don't follow me blindly, check schematics first.

Edited 1 time(s). Last edit at 07/10/2018 01:35AM by o_lampe.

i have checked the connections they are not interfering then also the same problem is been going on

In what way did you check the cables?
Did you check to see if the right AUX pin is connected to the right pin on the LCD board?

Did you catch what kind of "wrong" o_lamp is referring to by mentioning how the "key" on the 10-pin connector might have been mounted wrong?

Edited 1 time(s). Last edit at 07/12/2018 01:08AM by MrAlvin.