BobTheWhiteBoy :
I understand the power supply needing to be switched and i already planned for my friend to switch it out when upgrading to a card that will use more wattage.
Did you see the model of the motherboard? It looks to be proprietary to me.
Thanks again!
I didn't see anything in the link you provided that specifically pointed out the motherboard. However it's a good bet that it's proprietary, at the very least they have it made for them by the likes of ASUS or someone else. Either way it will have their own firmware (BIOS / UEFI) which is usually the limiting factor in these sort of things.
Like I said, I've personally never run into an OEM computer that I couldn't put an aftermarket graphics card in them. I've heard of them though. However I wasn't able to verify that fact myself, so I can't be sure of the validity of the claims. Could just be inexperienced builder / upgrader.
I'd say as long as you get a suitable PSU, you've got a better than 90% chance everything will work just fine. This system already has a discrete graphics card in it, so you have that in your favor.
So do you have a particular card in mind? How about a PSU?