Question GA-B75M-D3H (rev. 1.0) not accepting specific GPU


Jul 30, 2013
Dears i need your help,
I have GA-B75M-D3H (rev. 1.0) motherboard and GTX 760 GPU , i was changing the cooler fan so i removed the motherboard and every cables from the motherbord then installed the fan and then I reconnected the cables in the motherboard , the PC boots with a black screen , and when i checked the internal GPU by connecting a VGA cable to it ,it works ! , even while the GTX 760 GPU is connected , i went to a technician he informed me that the GPU works fine in another motherboard and the motherbord accepts any other GPU normally , the problrm is with the specific GTX 760 GPU i have , so i connected the GPU to the PCIEX4 and it worked fine ,

so guys i need your help to tell me if i kept the GPU connected to PCIEX4 i will lose a lot performance?

and sure if you can help me with any other solution i will be more than pleased