problems with my dvi to vga adapter

thegamerx8469

Honorable
Oct 12, 2013
42
0
10,530
Hello,
I have an old monitor that only has a vga cable and I've recently bought a msi r7770 gpu so I'll have to buy a dvi to vga adapter to make my monitor work with the new gpu but when I plug the vga cable into the adapter the monitor says "Monitor is working, check signal cable", so please guys help me
 

thegamerx8469

Honorable
Oct 12, 2013
42
0
10,530
The monitor runs with the bulit-in gpu through the vga port on my mobo also my new gpu is working well cuz the fan is working and the afterburner software can recognize and I can see it in the device manager but the only problem is when plug the vga cable into the hd 7770 through the dvi-i/vga adapter it doesn't work