Maximus V Formula | PCIE link widths set to x4 and x1
Just replaced damaged i7-2600k with i5-3570ki7-2600k had one pad teared off which (probably) led to weird gpu perfomance: -with single 680 gtx the first line width was x0 and no video signal, igpu worked (swapped GPUs - no changes)-with dual 680 gtx ...