Hoping someone can help me figure out what I need to do to use the ports on my EVGA 640 (P/N: 02G-P4-2643-KR). This version has a mini-HDMI, a DVI-I and a DVI-D port. I'm currently running dual monitors (extended) off my Gigabyte motherboard (one is a VGA monitor, the other is a smart TV, using the HDMI port on the motherboard).
I have another VGA monitor I want to set up as a 3rd monitor on an extended display, but I think I may have the wrong adapter to hook it up to my EVGA card. It's a DVI-A to VGA adapter. When I hook up the extra monitor using that adapter, the system doesn't detect it. But perhaps it's just a configuration issue.
Unfortunately, I'm unfamiliar with the ins and outs of DVI display, so I'm not sure if my problem is the wrong adapter or a bad configuration. A little help, pointing me in the right direction would be greatly appreciated. 

Thanks for the response, candle_86

candle_86
you need DVI-I to HDMI

So if I understand you right, I need an adapter with a male DVI-I and a female HDMI?

So I'd need another adapter to plug into that HDMI end, with a female VGA, in order to use my VGA monitor? I don't understand why my DVI-A to VGA adaptor doesn't work, then, as that would accomplish the same thing, wouldn't it?
 
 

candle_86
For a 3rd monitor on the same GPU one has to be native display port I misunderstood. What is your motherboard, your issue is your card only has two ramdacs

The motherboard is a Gigabyte GA-H77M-D3H (. com/Motherboard/GA-H77M-D3H-rev-10#ov)

That's what I'm hoping I can do, but it doesn't detect my monitor when I hook the other VGA monitor via the adaptor.

"This version has a mini-HDMI, a DVI-I and a DVI-D port. I'm currently running dual monitors (extended) off my Gigabyte motherboard (one is a VGA monitor, the other is a smart TV, using the HDMI port on the motherboard).
I have another VGA monitor I want to set up as a 3rd monitor on an extended display, but I think I may have the wrong adapter to hook it up to my EVGA card. It's a DVI-A to VGA adapter. When I hook up the extra monitor using that adapter, the system doesn't detect it. But perhaps it's just a configuration issue."
 
I'm just not sure if my problem is the wrong adapter or a bad configuration.
 

candle_86
Take a picture for ud

Sorry, I don't understand.... what do you want a picture of? the connectors on my EVGA board? Here's the board: www. evga. com/products/specs/gpu.aspx?pn=5abfe4f7-78a0-4cf8-98ac-d1b6578aff4c and here's a picture of the connection on the board:  i38.photobucket.com/albums/e127/dcamp2626/My%20Snapshot_2_zpsbcpf0udb.jpg