I dont know what do , i have intel DG41RQ Desktop ....
Error which i can see before boot :-
"This product is covered by one or more of the following patents: S5,305,459 , US5,434,872 n so on ...
For giga ethernet controller:-
PXE-E61: Media test failure, check cable.
PXE-MOF: Exiting PXE ROM."