Download SIW from here and then install it. When you run it, on the left hand side of the screen you will see a long list of headings. Under Hardware, click on System Slots and tell us what you see. It would also be quite useful to know what you've got currently as a Graphics driver so again under the Hardware heading click on Video. On the right hand side the top 2 entries (Display Adaptor and Display Board) are all we need.
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Do you know that we're all in line for succession to the throne? Really?
Well, if forty-eight million, two hundred thousand, seven hundred and one people died I'd be Queen.