[Solved] - Tower's 1st [no, 3rd] Hard-Reset since clean-reinstall.

[kdemeoz]

I don't pretend to know everything, or to assume what is best for someone else. I was only giving the quickest and easiest solution.
Yes, the Intel part may be the better option for some and not for others. If you would rather use the Intel chip, then you could always remove the nvidia card from the system. There is no way to actually disable an add on card like you can the one built into the cpu, it would have to be physically removed.

Thanks very much AJ     

Thanks also for the PDF earlier; that's much more convenient for reference [except during actual BIOS-editing, of course] than the tiny-tiny-font paper manual that came with the pc.