Hi, I bought a zotac gtx 1050 today. My monitor has a vga cable but the ports in card are dvi, hdmi and one other port( i forgot the name). So i had a vga to dvi converter and i used it.Problem is that when i inserted the card into my computer and plugged in the dvi, the screen is blank ,the monitor says that no signal detected.. Note that the card is inserted properly, the fan is running good and upon the start up of the windows, i can hear the start up music..but there is no display and when i remove the graphic card ,dvi converter and insert the vga cable in the built-in cpu port, the display is fine and good. The desktop i am using is hp compaq 6200 pro microtower i5-2500.. the power supply is 320 watt.. Is the power supply problem? if the power supply is the problem why is my computer turning on? what should i do? please help