URGENT URGENT URGEEEENNNNNT: My DE2 borad BURNED and i don't know what to repair!!!

Hi, keep cool..... Use The Force, Obiwan ;-)

I think you have connected other components to the board, haven't you ?

Have you succeeded in configuring the board with "factory design" : one press button somewhere ?

maybe you have short circuits that FPGA has supported for a long time : 20mA per pin without exceeding ...mA per Bank....

In you project setting, did you set unused pin as input tristated ? unused pin as output driving ground is the option by defaut (Quartus 9) and is good for noise immunity. Input tristated prevents unintentionnal short circuits.

I suggest you to unplug all other components so as to identify more precisely the problem.

Pressing the button smoothly is likely to produce bounces and FPGA is repeatedly reconfigured (100ms to Power On Reset on FPGA cyclone II), during this time FPGA is tristated (to allow hot socketing) and output buffers have the time to evacuate calories.

I suggest you to check carefully in/out pins association in your design and test separatly other components that you have plugged to the board.

Gooooooooooooooooooooooooooooooooooooooooooooooooooooooooood luck. Use you instinct, your brain, you hands