Recent content by hin

Thanks for help. Somehow looks like I have fixed the problem I have mansion, but it cost a new problem which only able output 3840x2160 at 30Hz , and seems like don’t have any graphics acceleration. Here is my specification of my build Mac OS 10.13.6 i5 8500 gigabyte H370N WiFi Sapphire R9...

I have a 10.13 build. Now I am upgrading the build by adding a graphics card R9 280x , every thing works fine, except the graphics card DisplayPort. It unable to output any signal, but ones I Connected graphic card HDMI to a Monitor it both works fine. If I disconnect the HDMI, the DisplayPort...