XBox on life support, never seen this before...

[devilsminion]

I have had my XBox modded and running for almost 2 years. I have an Xecutor 2.3 chip. Anyways today I went to play a game and the screen was black and white and you know flipping around you know up and down. So I first thought of the s video cable tried replacing that with straight rca jacks now the picture is steady but black and white,

I disabled the chip, brings up the error screen in black and white.

I have never seen or heard of this before but I am somewhat familiar with electronics and I am pretty sure its toast.

Now if it is toast does anyone know where a good place to buy a new board, and how difficult is it to install it.