How to destroy a motherboard

I have a couple questions that should be easy for some pros out there.

1) is it easy to swap different versions of motherboards in different xboxes? (any tutorials out there about eeproms?)

2) I ask this because I think I ruined my current project's motherboard (v1.6 w/ an xecuter 3CE mod chip) while soddering.

this is my third modded xbox (first two were great successes and are still working fine). this was my 1st v1.6 and i think i removed a sodder point from the actual motherboard while installing that fun rebuild PCB. I am assuming i held my soldering iron to the board to long (a big no-no) and roasted off the point or "lifted a trace" (don't know what goes on when that happens).

bottom line: the xbox won't start (no spinning, no lights, no nothing) but the mod chip lights up for a few seconds upon pushing the button. any help out their on how to repair this?

thanks,
Manford

 

i hope there is a mod who eats noobies