I've damaged Direct Media Interface (DMI) on my motherboard.

[lizaczek.rozwala]

Hello,
My PC is Alienware Aurora R2.
In bios i changed dmi to +20 mv .
Unfortelly computer starting with 7 x beep. (Somentimes normal runing i can Play games )
Can this chipset be repaired? Do I have to buy a new motherboard? Thank you in advance. Socket lga 1156
Please help me

 

[jay32267]

In general motherboards are cheaper to replace than repair.