Need Help With Connecting Two Additional Monitors&/or Video Cards To Pc

Ok I am going to keep this short because the last place I tried to get help from suggested to keep it short and to the point but with the information needed to be able to get help.

So I want to hook up multiple monitors to my computer. I already have done this with two but I want to at least have four hooked up. I have the two working ones hooked up to my video card. What I have tried so far with the other two is plugging them into the connections on the motherboard but that didn't work out which doesn't make since to me, why put monitor hook up's on a motherboard when you need a video card to use a monitor... (bare with me I am new and just learning) so I don't know if it just needs some extra set up or if my other option I was thinking about would work which is where the video cards come in. I have two other nice video cards and even just using one should allow me to hook up the other two monitors, I think at least. I know you can have multiple video cards installed into a computer but I have no idea what is involved with that so I do not want to try doing this on my own without any help. Basically I have two monitors, two extra video cards I can use, a computer built that can handle everything I throw at it yet no idea how to accomplish hooking up those other two monitors. If you can help me with any advice I would greatly appreciate it since I have been wanting to do this since I was like 9 years old and have never had the capabilities but I do now just not the knowledge...

Thank you for taking the time for reading my problem and I hope you can help me with this.

EDIT. Removed Email Address and Phone No. DSTM

 

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