You're right...
Maybe it is just a little transistor or resistor, i will try to identify it, but i have'nt seen any burn mark on the board.
Is marto74 offering a kind of warranty on this ?

Hi,
I have a similar problem, the board doesn't hash at all it is recognized in cgminer but it does not POWER UP. The fans do not work at all... Is there a fuse of some kind that I can replace? marto74 is awol so no use asking him for help...
I don't see any burn marks on my board also...
regards,
P.