I know the mobo has to work because it posts fine, then enter set up fine. but aside from that im not sure
Unfortunately, you don't
know that. The POST is only a basic test.
For example, I used to have a P4 Celeron in an Asus motherboard with integrated sound and graphics. A few years ago, the sound chip died. That had no effect on anything else. I just plugged a cheap sound card in and kept going.
A couple of years ago the video chip died (well, technically the GPU is part of the chipset and not a separate chip). The system still POSTed, but it had no video. Well, the POST routines can only test the interface between the CPU and GPU. It cannot test the circuits inside the GPU. You need the Mark I Eyeball for that.
The only certain way to test components is either by substituting known good components in a questionable system or by substituting questionable components in a known good system.