Black screen after apple boot screen when connecting a second vga monitor

I recently got my hands on an old vga monitor to use as a second screen, (Main HDMI second VGA) monitor works fine was able to use both displays on windows just fine however, when I try to use them on my hackintosh mac will display the boot on both screens then turns black.

I read somewhere that mac doesn't support vga is this true? I have tried unplugging the hdmi screen and only using the vga but it still has same problem black screen after boot.

Both vga and hdmi monitors are plugged into my motherboard as I don't currently own a gpu.

Specs - Intel core i5 4690 - Gigabyte z97 d3h motherboard - 16gb crucial DDR3 ram

submitted by /u/btchimsway
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