I do not really understand your last post here. Have u tried any of my suggestions? Can't help u much unless u do some testing on your own. Since u wanted my BIOS settings, let me see if i can remember, i am writing this mail from my office PC and not my BX machine back home
My AGP aperture is set to 64, i can set it higher with no difference, never tried to set it lower though?
I hope that u enable assign IRQ to the AGP? What 3D card u were using before the upgrade?
I never changed any voltage settings other than the P!!!550E@600 CPU (now is 1.6V, can go to 700Mhz at 1.6V, but not 733 at higher voltage maybe its my PC100RAM).
Noname MX card? why don't u just return it to the store and let them test the card if it is working. I hope u did not steal it from somewhere! no offense. Glad to help if u could give some more info on your setup! Hope your card works, i am getting double score in 3Dmark with normal clock 175/166 after the upgrade from a TNT2 M64 (2500+ to 5000+ points) And this card can overclock real high too!