Question Trying to connect a CRT monitor to a modern PC

[elliotk557]

I have no idea if this even possible, I may completely wasting my time but I am trying to connect a CRT Monitor to my modern PC for some retro emulation.

This is my current build:
Asrock B450m pro4 AM4 Motherboard
Ryzen 5 3600x CPU
RTX 3060 12gb GPU
Corsair CX-M 650W
16GB RAM

The CRT monitor I have only has a VGA connection and obviously the RTX 3060 has no analog out to connect to the monitor. My first thought was just to use a DP to VGA converter but I realized that would add a decent amount of input delay as it's going through a DAC. My next idea was to put an older graphics card that has a DVI-I connection into my current system. I found a GTX 750 on facebook marketplace for cheap that has a DVI-I output. Would it be possible to have both of these GPUs in my system at the same time? And if I can have both of them in at the same time can I tell Windows to only use the 750 on specific applications like emulators? After doing some research it seems like my main limitation is the amount of PCIe lanes that my mobo and CPU can support. From what I understand (which is not a lot) I would need to upgrade my motherboard to a board with two PCIe 4 x16 lanes as my current only has one PCIe 3 x16 lane.

Is what I'm trying to do even possible or am I better off just getting an old laptop with an analog display connection? Any help or new ideas would be greatly appreciated.

 

[geofelt]

Look for a graphics card that has one of the blue vga outputs.
Windows is happy to have multiple graphics adapters.
That is what your old monitor needs.
Converters are not what you want since they do not always work well.
Here is an example:

https://www.newegg.com/msi-geforce-210-n210-md1g-d3/p/N82E16814127515?Item=N82E16814127515

I use a EVGA GTX750ti which has such a blue vga output as well as DP,hdmi and dvd-D) and it works well
Low end cards need only a x16 slot of any type and are not hampered at all, even with pcie-2

 

[hotaru.hino]

Regarding PCIe lanes, the video cards will either evenly share the 16 lanes the CPU provides assuming both slots are connected to the CPU ones, or the other slot is connected to the chipset, in which case typically only 4 lanes are provided.

Regarding using a converter though, every VGA connection uses a DAC (RAMDAC used to be a thing that was touted on video cards until the mid 2000s). And I doubt most of them will add a significant amount of input lag. If anything, you could aim for an HDMI to VGA adapter instead, since HDMI is a direct offshoot of DVI, which is basically a digitized VGA.