Hi guys,

I do not know why the graphic card will give the strange, abnormal warning sound which I can not describe in words. Fisrt of all, I'm sure the graphic card is one can be used without any fault. Then my friend checked it. The graphic card and the motherboard are connecting well. So he finally concluded that the motherboard and the graphic card may be incompatible. If it is the case, must I replace the one the two? By the way, the operating system of the computer is windows 8. And I have never come across this problem before.
　　
Could you give me some suggestions?

Thanks!